## 1. Installation
-Clone the repository, or download the zip file of the release you would like to use. The source code is available in src folder. src/cli/drampower.cc file gives the user interface, where the user can specify the memory to be employed and the command/transaction trace to be analyzed. To build, use:
+Clone the repository, or download the zip file of the release you would like to use. The source code is available in src folder. [drampower.cc](src/cli/drampower.cc) file gives the user interface, where the user can specify the memory to be employed and the command/transaction trace to be analyzed. To build, use:
```bash
make -j4
```
The format it uses is: ```<timestamp>,<command>,<bank>```.
For example, "500,ACT,2", where ACT is the command and 2 is the bank. Timestamp is in clock cycles (cc), the list of supported commands is
-mentioned in src/MemCommand.h and the bank is the target bank number. For non-bank-specific commands, bank can be set to 0. Rank need not be
+mentioned in [MemCommand.h](src/MemCommand.h) and the bank is the target bank number. For non-bank-specific commands, bank can be set to 0. Rank need not be
specified. The timing correctness of the trace is not verified by the tool and is assumed to be accurate. However, warning messages are provided, to identify if the memory or bank state is inconsistent in the trace. A sample command trace is provided in the traces/ folder.
### Transaction Traces
## 5. Usage
-src/cli/drampower.cc is the main interface file, which accepts user inputs to specify memory to be employed and the command or transaction trace to be analyzed. If the transaction trace (DRAM command scheduler) is being used, the users can specify the degree of bank interleaving required, the request size and the use of power-down or self-refresh options. Also, for DDR4 memories bank group interleaving can be specified. Dual-rank DRAMs are not yet supported by the command scheduler. Note: Speculative use of power-down or self-refresh modes will increase the trace length due to the power-up latencies of these power-saving modes.
+[drampower.cc](src/cli/drampower.cc) is the main interface file, which accepts user inputs to specify memory to be employed and the command or transaction trace to be analyzed. If the transaction trace (DRAM command scheduler) is being used, the users can specify the degree of bank interleaving required, the request size and the use of power-down or self-refresh options. Also, for DDR4 memories bank group interleaving can be specified. Dual-rank DRAMs are not yet supported by the command scheduler. Note: Speculative use of power-down or self-refresh modes will increase the trace length due to the power-up latencies of these power-saving modes.
To use DRAMPower at the command-level (command trace), after make, use the following:
```bash
## 8. Example Usage
An example of using this tool is provided below. To compile the example,
-use the Makefile and make sure the Gcc and Xerces-c are installed. Then, run:
+use the Makefile and make sure the gcc and Xerces-c are installed. Then, run:
```
make -j4
```
-
-This should show the following compilation message on the screen:
-```
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/xmlparser/MemSpecParser.d -iquote src -o src/xmlparser/MemSpecParser.o -c src/xmlparser/MemSpecParser.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/xmlparser/XMLHandler.d -iquote src -o src/xmlparser/XMLHandler.o -c src/xmlparser/XMLHandler.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/xmlparser/XMLParser.d -iquote src -o src/xmlparser/XMLParser.o -c src/xmlparser/XMLParser.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/CmdScheduler.d -iquote src -o src/CmdScheduler.o -c src/CmdScheduler.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/CommandAnalysis.d -iquote src -o src/CommandAnalysis.o -c src/CommandAnalysis.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/MemArchitectureSpec.d -iquote src -o src/MemArchitectureSpec.o -c src/MemArchitectureSpec.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/MemCommand.d -iquote src -o src/MemCommand.o -c src/MemCommand.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/MemoryPowerModel.d -iquote src -o src/MemoryPowerModel.o -c src/MemoryPowerModel.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/MemorySpecification.d -iquote src -o src/MemorySpecification.o -c src/MemorySpecification.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/MemPowerSpec.d -iquote src -o src/MemPowerSpec.o -c src/MemPowerSpec.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/MemTimingSpec.d -iquote src -o src/MemTimingSpec.o -c src/MemTimingSpec.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/Parameter.d -iquote src -o src/Parameter.o -c src/Parameter.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/Parametrisable.d -iquote src -o src/Parametrisable.o -c src/Parametrisable.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/TraceParser.d -iquote src -o src/TraceParser.o -c src/TraceParser.cc
-g++ -O -W -pedantic-errors -Wextra -Werror -Wformat -Wformat-nonliteral -Wpointer-arith -Wcast-align -Wconversion -g -std=c++98 -MMD -MF src/libdrampower/LibDRAMPower.d -iquote src -o src/libdrampower/LibDRAMPower.o -c src/libdrampower/LibDRAMPower.cc
-ar -cvr src/libdrampowerxml.a src/xmlparser/MemSpecParser.o src/xmlparser/XMLHandler.o src/xmlparser/XMLParser.o
-a - src/xmlparser/MemSpecParser.o
-a - src/xmlparser/XMLHandler.o
-a - src/xmlparser/XMLParser.o
-g++ -Wall -o drampower src/xmlparser/MemSpecParser.o src/xmlparser/XMLHandler.o src/xmlparser/XMLParser.o src/CmdScheduler.o src/CommandAnalysis.o src/MemArchitectureSpec.o src/MemCommand.o src/MemoryPowerModel.o src/MemorySpecification.o src/MemPowerSpec.o src/MemTimingSpec.o src/Parameter.o src/Parametrisable.o src/TraceParser.o -L/usr/lib -lxerces-c
-ar -cvr src/libdrampower.a src/CmdScheduler.o src/CommandAnalysis.o src/MemArchitectureSpec.o src/MemCommand.o src/MemoryPowerModel.o src/MemorySpecification.o src/MemPowerSpec.o src/MemTimingSpec.o src/Parameter.o src/Parametrisable.o src/TraceParser.o src/libdrampower/LibDRAMPower.o
-a - src/CmdScheduler.o
-a - src/CommandAnalysis.o
-a - src/MemArchitectureSpec.o
-a - src/MemCommand.o
-a - src/MemoryPowerModel.o
-a - src/MemorySpecification.o
-a - src/MemPowerSpec.o
-a - src/MemTimingSpec.o
-a - src/Parameter.o
-a - src/Parametrisable.o
-a - src/TraceParser.o
-a - src/libdrampower/LibDRAMPower.o
-```
After this, run with the command trace or the transaction trace, as described before:
```
./drampower -m memspecs/MICRON_1Gb_DDR3-1066_8bit_G.xml -t traces/mediabench-epic.trace -r
```
* Parsing memspecs/MICRON_1Gb_DDR3-1066_8bit_G.xml
-* Analysis start time: Thu Nov 14 01:44:24 2013
+* Analysis start time: Thu Aug 4 15:43:52 2016
* Analyzing the input trace
-* Analysis End Time: Thu Nov 14 01:44:26 2013
-* Power Computation Start time: Thu Nov 14 01:44:26 2013
* Trace Details:
-Number of Activates: 96984
-Number of Reads: 67179
-Number of Writes: 29805
-Number of Precharges: 96984
-Number of Refreshes: 13168
-Number of Active Cycles: 2519793
- Number of Active Idle Cycles: 196851
- Number of Active Power-Up Cycles: 0
- Number of Auto-Refresh Active cycles during Self-Refresh Power-Up: 0
-Number of Precharged Cycles: 52261474
- Number of Precharged Idle Cycles: 51649664
- Number of Precharged Power-Up Cycles: 0
- Number of Auto-Refresh Precharged cycles during Self-Refresh Power-Up: 0
- Number of Self-Refresh Power-Up Cycles: 0
-Total Idle Cycles (Active + Precharged): 51846515
-Number of Power-Downs: 0
- Number of Active Fast-exit Power-Downs: 0
- Number of Active Slow-exit Power-Downs: 0
- Number of Precharged Fast-exit Power-Downs: 0
- Number of Precharged Slow-exit Power-Downs: 0
-Number of Power-Down Cycles: 0
- Number of Active Fast-exit Power-Down Cycles: 0
- Number of Active Slow-exit Power-Down Cycles: 0
- Number of Auto-Refresh Active cycles during Self-Refresh: 0
- Number of Precharged Fast-exit Power-Down Cycles: 0
- Number of Precharged Slow-exit Power-Down Cycles: 0
- Number of Auto-Refresh Precharged cycles during Self-Refresh: 0
-Number of Auto-Refresh Cycles: 776912
-Number of Self-Refreshes: 0
-Number of Self-Refresh Cycles: 0
+
+#ACT commands: 96984
+#RD + #RDA commands: 67179
+#WR + #WRA commands: 29805
+#PRE (+ PREA) commands: 96984
+#REF commands: 13168
+#Active Cycles: 2519793
+ #Active Idle Cycles: 196851
+ #Active Power-Up Cycles: 0
+ #Auto-Refresh Active cycles during Self-Refresh Power-Up: 0
+#Precharged Cycles: 52261474
+ #Precharged Idle Cycles: 51649629
+ #Precharged Power-Up Cycles: 0
+ #Auto-Refresh Precharged cycles during Self-Refresh Power-Up: 0
+ #Self-Refresh Power-Up Cycles: 0
+Total Idle Cycles (Active + Precharged): 51846480
+#Power-Downs: 0
+ #Active Fast-exit Power-Downs: 0
+ #Active Slow-exit Power-Downs: 0
+ #Precharged Fast-exit Power-Downs: 0
+ #Precharged Slow-exit Power-Downs: 0
+#Power-Down Cycles: 0
+ #Active Fast-exit Power-Down Cycles: 0
+ #Active Slow-exit Power-Down Cycles: 0
+ #Auto-Refresh Active cycles during Self-Refresh: 0
+ #Precharged Fast-exit Power-Down Cycles: 0
+ #Precharged Slow-exit Power-Down Cycles: 0
+ #Auto-Refresh Precharged cycles during Self-Refresh: 0
+#Auto-Refresh Cycles: 776912
+#Self-Refreshes: 0
+#Self-Refresh Cycles: 0
----------------------------------------
Total Trace Length (clock cycles): 54781267
----------------------------------------
* Trace Power and Energy Estimates:
+
ACT Cmd Energy: 109175234.52 pJ
PRE Cmd Energy: 47764165.10 pJ
RD Cmd Energy: 49155365.85 pJ
-WR Cmd Energy: 23486116.32 pJ
-RD I/O Energy: 22249684.80 pJ
-WR Termination Energy: 50549280.00 pJ
+WR Cmd Energy: 23486116.32 pJRD I/O Energy: 20872124.58 pJ
+WR Termination Energy: 47419587.24 pJ
ACT Stdby Energy: 283653996.25 pJ
Active Idle Energy: 22159587.24 pJ
Active Power-Up Energy: 0.00 pJ
Active Stdby Energy during Auto-Refresh cycles in Self-Refresh Power-Up: 0.00 pJ
PRE Stdby Energy: 5147706163.23 pJ
- Precharge Idle Energy: 5087443452.16 pJ
+ Precharge Idle Energy: 5087440004.69 pJ
Precharged Power-Up Energy: 0.00 pJ
Precharge Stdby Energy during Auto-Refresh cycles in Self-Refresh Power-Up: 0.00 pJ
Self-Refresh Power-Up Energy: 0.00 pJ
-Total Idle Energy (Active + Precharged): 5109603039.40 pJ
+Total Idle Energy (Active + Precharged): 5109599591.93 pJ
Total Power-Down Energy: 0.00 pJ
Fast-Exit Active Power-Down Energy: 0.00 pJ
Slow-Exit Active Power-Down Energy: 0.00 pJ
Auto-Refresh Energy: 262371782.36 pJ
Self-Refresh Energy: 0.00 pJ
----------------------------------------
-Total Trace Energy: 5996111788.44 pJ
-Average Power: 58.34 mW
+Total Trace Energy: 5991604535.46 pJ
+Average Power: 58.30 mW
----------------------------------------
-* Power Computation End time: Thu Nov 14 01:44:27 2013
-* Total Simulation time: 3.51 seconds
+* Power Computation End time: Thu Aug 4 15:43:59 2016
+* Total Simulation time: 7 seconds
*
```
## 9. DRAMPower Library
The DRAMPower tool has an additional feature and can be used as a library.
-In order to use the library run "make lib", include src/libdrampower/LibDRAMPower.h in your project and
+In order to use the library run "make lib", include [LibDRAMPower.h](src/libdrampower/LibDRAMPower.h) in your project and
link the file src/libdrampower.a with your project.
-An example for the usuage of the library can be found in the folder test/libdrampowertest/lib_test.cc
+Examples for the usage of the library are [lib_test.cc](test/libdrampowertest/lib_test.cc) and [window_example.cc](test/libdrampowertest/window_example.cc).
## 10. Authors & Acknowledgment
-The tool is based on the DRAM power model developed jointly by the Computer Engineering Research Group at TU Delft and the Electronic Systems Group at TU Eindhoven and verified by the Microelectronic System Design Research Group at TU Kaiserslautern with equivalent circuit-level simulations. This tool has been developed by Karthik Chandrasekar with Yonghui Li under the supervision of Dr. Benny Akesson and Prof. Kees Goossens. The IO and Termination Power measures have been employed from Micron's DRAM Power Calculator. If you decide to use DRAMPower in your research, please cite one of the following references:
+The tool is based on the DRAM power model developed jointly by the Computer Engineering Research Group at TU Delft and the Electronic Systems Group at TU Eindhoven
+and verified by the Microelectronic System Design Research Group at TU Kaiserslautern with equivalent circuit-level simulations. This tool has been developed by
+Karthik Chandrasekar with Yonghui Li under the supervision of Dr. Benny Akesson and Prof. Kees Goossens. The IO and Termination Power measures have been employed
+from Micron's DRAM Power Calculator. If you decide to use DRAMPower in your research, please cite one of the following references:
**To cite the DRAMPower Tool:**
```
DRAMPowerFile('Parameter.cc')
DRAMPowerFile('Parametrisable.cc')
DRAMPowerFile('libdrampower/LibDRAMPower.cc')
+DRAMPowerFile('CAHelpers.cc')
+DRAMPowerFile('CmdHandlers.cc')
+DRAMPowerFile('MemBankWiseParams.cc')
main.Library('drampower', [main.SharedObject(f) for f in drampower_files])
--- /dev/null
+/*
+ * Copyright (c) 2012-2014, TU Delft
+ * Copyright (c) 2012-2014, TU Eindhoven
+ * Copyright (c) 2012-2014, TU Kaiserslautern
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <cstdio>
+#include <algorithm> // std::count
+#include <string>
+
+#include "CommandAnalysis.h"
+
+using std::cerr;
+using std::endl;
+using std::string;
+
+using namespace Data;
+
+
+// To get the time of completion of the issued command
+// Derived based on JEDEC specifications
+
+int64_t CommandAnalysis::timeToCompletion(MemCommand::cmds type)
+{
+ int64_t offset = 0;
+ const MemTimingSpec& memTimingSpec = memSpec.memTimingSpec;
+ const MemArchitectureSpec& memArchSpec = memSpec.memArchSpec;
+
+ if (type == MemCommand::RD) {
+ offset = memTimingSpec.RL +
+ memTimingSpec.DQSCK + 1 + (memArchSpec.burstLength /
+ memArchSpec.dataRate);
+ } else if (type == MemCommand::WR) {
+ offset = memTimingSpec.WL +
+ (memArchSpec.burstLength / memArchSpec.dataRate) +
+ memTimingSpec.WR;
+ } else if (type == MemCommand::ACT) {
+ offset = memTimingSpec.RCD;
+ } else if ((type == MemCommand::PRE) || (type == MemCommand::PREA)) {
+ offset = memTimingSpec.RP;
+ }
+ return offset;
+} // CommandAnalysis::timeToCompletion
+
+
+// Returns the number of active banks based on the bank_state vector.
+unsigned CommandAnalysis::get_num_active_banks(void)
+{
+ return (unsigned)std::count(bank_state.begin(), bank_state.end(), BANK_ACTIVE);
+}
+
+// Naming-standard compliant wrapper
+unsigned CommandAnalysis::nActiveBanks(void)
+{
+ return CommandAnalysis::get_num_active_banks();
+}
+
+bool CommandAnalysis::isPrecharged(unsigned bank)
+{
+ return bank_state[bank] == BANK_PRECHARGED;
+}
+
+void CommandAnalysis::printWarningIfActive(const string& warning, int type, int64_t timestamp, unsigned bank)
+{
+ if (get_num_active_banks() != 0) {
+ printWarning(warning, type, timestamp, bank);
+ }
+}
+
+void CommandAnalysis::printWarningIfNotActive(const string& warning, int type, int64_t timestamp, unsigned bank)
+{
+ if (get_num_active_banks() == 0) {
+ printWarning(warning, type, timestamp, bank);
+ }
+}
+
+void CommandAnalysis::printWarningIfPoweredDown(const string& warning, int type, int64_t timestamp, unsigned bank)
+{
+ if (mem_state != 0) {
+ printWarning(warning, type, timestamp, bank);
+ }
+}
+
+void CommandAnalysis::printWarning(const string& warning, int type, int64_t timestamp, unsigned bank)
+{
+ cerr << "WARNING: " << warning << endl;
+ cerr << "Command: " << type << ", Timestamp: " << timestamp <<
+ ", Bank: " << bank << endl;
+}
--- /dev/null
+/*
+ * Copyright (c) 2012-2014, TU Delft
+ * Copyright (c) 2012-2014, TU Eindhoven
+ * Copyright (c) 2012-2014, TU Kaiserslautern
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "CommandAnalysis.h"
+
+using std::cerr;
+using std::endl;
+using std::max;
+
+using namespace Data;
+
+
+int64_t zero_guard(int64_t cycles_in, const char* warning)
+{
+ // Calculate max(0, cycles_in)
+ int64_t zero = 0;
+ if (warning != nullptr && cycles_in < 0) {
+ // This line is commented out for now, we will attempt to remove the situations where
+ // these warnings trigger later.
+ // cerr << "WARNING: " << warning << endl;
+ }
+ return max(zero, cycles_in);
+}
+
+void CommandAnalysis::handleAct(unsigned bank, int64_t timestamp)
+{
+ printWarningIfPoweredDown("Command issued while in power-down mode.", MemCommand::ACT, timestamp, bank);
+ // If command is ACT - update number of acts, bank state of the
+ // target bank, first and latest activation cycle and the memory
+ // state. Update the number of precharged/idle-precharged cycles.
+ // If the bank is already active ignore the command and generate a
+ // warning.
+ if (isPrecharged(bank)) {
+ numberofactsBanks[bank]++;
+
+ if (nActiveBanks() == 0) {
+ // Here a memory state transition to ACT is happening. Save the
+ // number of cycles in precharge state (increment the counter).
+ first_act_cycle = timestamp;
+ precycles += zero_guard(timestamp - last_pre_cycle, "1 last_pre_cycle is in the future.");
+ idle_pre_update(timestamp, latest_pre_cycle);
+ }
+
+ bank_state[bank] = BANK_ACTIVE;
+ latest_act_cycle = timestamp;
+ } else {
+ printWarning("Bank is already active!", MemCommand::ACT, timestamp, bank);
+ }
+}
+
+void CommandAnalysis::handleRd(unsigned bank, int64_t timestamp)
+{
+ printWarningIfPoweredDown("Command issued while in power-down mode.", MemCommand::RD, timestamp, bank);
+ // If command is RD - update number of reads and read cycle. Check
+ // for active idle cycles (if any).
+ if (isPrecharged(bank)) {
+ printWarning("Bank is not active!", MemCommand::RD, timestamp, bank);
+ }
+ numberofreadsBanks[bank]++;
+ idle_act_update(latest_read_cycle, latest_write_cycle, latest_act_cycle, timestamp);
+ latest_read_cycle = timestamp;
+}
+
+void CommandAnalysis::handleWr(unsigned bank, int64_t timestamp)
+{
+ printWarningIfPoweredDown("Command issued while in power-down mode.", MemCommand::WR, timestamp, bank);
+ // If command is WR - update number of writes and write cycle. Check
+ // for active idle cycles (if any).
+ if (isPrecharged(bank)) {
+ printWarning("Bank is not active!", MemCommand::WR, timestamp, bank);
+ }
+ numberofwritesBanks[bank]++;
+ idle_act_update(latest_read_cycle, latest_write_cycle, latest_act_cycle, timestamp);
+ latest_write_cycle = timestamp;
+}
+
+void CommandAnalysis::handleRef(unsigned bank, int64_t timestamp)
+{
+ printWarningIfPoweredDown("Command issued while in power-down mode.", MemCommand::REF, timestamp, bank);
+ // If command is REF - update number of refreshes, set bank state of
+ // all banks to ACT, set the last PRE cycles at RFC-RP cycles from
+ // timestamp, set the number of active cycles to RFC-RP and check
+ // for active and precharged cycles and idle active and idle
+ // precharged cycles before refresh. Change memory state to 0.
+ printWarningIfActive("One or more banks are active! REF requires all banks to be precharged.", MemCommand::REF, timestamp, bank);
+ numberofrefs++;
+ idle_pre_update(timestamp, latest_pre_cycle);
+ first_act_cycle = timestamp;
+ std::fill(first_act_cycle_banks.begin(), first_act_cycle_banks.end(), timestamp);
+ precycles += zero_guard(timestamp - last_pre_cycle, "2 last_pre_cycle is in the future.");
+ last_pre_cycle = timestamp + memSpec.memTimingSpec.RFC - memSpec.memTimingSpec.RP;
+ latest_pre_cycle = last_pre_cycle;
+ actcycles += memSpec.memTimingSpec.RFC - memSpec.memTimingSpec.RP;
+ for (auto &e : actcyclesBanks) {
+ e += memSpec.memTimingSpec.RFC - memSpec.memTimingSpec.RP;
+ }
+ for (auto& bs : bank_state) {
+ bs = BANK_PRECHARGED;
+ }
+}
+
+void CommandAnalysis::handleRefB(unsigned bank, int64_t timestamp)
+{
+ // A REFB command requires a previous PRE command.
+ if (isPrecharged(bank)) {
+ // This previous PRE command handler is also responsible for keeping the
+ // memory state updated.
+ // Here we consider that the memory state is not changed in order to keep
+ // things simple, since the transition from PRE to ACT state takes time.
+ numberofrefbBanks[bank]++;
+ // Length of the refresh: here we have an approximation, we consider tRP
+ // also as act cycles because the bank will be precharged (stable) after
+ // tRP.
+ actcyclesBanks[bank] += memSpec.memTimingSpec.RAS + memSpec.memTimingSpec.RP;
+ } else {
+ printWarning("Bank must be precharged for REFB!", MemCommand::REFB, timestamp, bank);
+ }
+}
+
+void CommandAnalysis::handlePre(unsigned bank, int64_t timestamp)
+{
+ printWarningIfPoweredDown("Command issued while in power-down mode.", MemCommand::PRE, timestamp, bank);
+ // If command is explicit PRE - update number of precharges, bank
+ // state of the target bank and last and latest precharge cycle.
+ // Calculate the number of active cycles if the memory was in the
+ // active state before, but there is a state transition to PRE now
+ // (i.e., this is the last active bank).
+ // If the bank is already precharged ignore the command and generate a
+ // warning.
+
+ // Precharge only if the target bank is active
+ if (bank_state[bank] == BANK_ACTIVE) {
+ numberofpresBanks[bank]++;
+ actcyclesBanks[bank] += zero_guard(timestamp - first_act_cycle_banks[bank], "first_act_cycle is in the future (bank).");
+ // Since we got here, at least one bank is active
+ assert(nActiveBanks() != 0);
+
+ if (nActiveBanks() == 1) {
+ // This is the last active bank. Therefore, here a memory state
+ // transition to PRE is happening. Let's increment the active cycle
+ // counter.
+ actcycles += zero_guard(timestamp - first_act_cycle, "first_act_cycle is in the future.");
+ last_pre_cycle = timestamp;
+ idle_act_update(latest_read_cycle, latest_write_cycle, latest_act_cycle, timestamp);
+ }
+
+ bank_state[bank] = BANK_PRECHARGED;
+ latest_pre_cycle = timestamp;
+ } else {
+ printWarning("Bank is already precharged!", MemCommand::PRE, timestamp, bank);
+ }
+}
+
+void CommandAnalysis::handlePreA(unsigned bank, int64_t timestamp)
+{
+ printWarningIfPoweredDown("Command issued while in power-down mode.", MemCommand::PREA, timestamp, bank);
+ // If command is explicit PREA (precharge all banks) - update
+ // number of precharges by the number of active banks, update the bank
+ // state of all banks to PRE and set the precharge cycle (the cycle in
+ // which the memory state changes from ACT to PRE, aka last_pre_cycle).
+ // Calculate the number of active cycles if the memory was in the
+ // active state before, but there is a state transition to PRE now.
+
+ if (nActiveBanks() > 0) {
+ // Active banks are being precharged
+ // At least one bank was active, therefore the current memory state is
+ // ACT. Since all banks are being precharged a memory state transition
+ // to PRE is happening. Add to the counter the amount of cycles the
+ // memory remained in the ACT state.
+
+ actcycles += zero_guard(timestamp - first_act_cycle, "first_act_cycle is in the future.");
+ last_pre_cycle = timestamp;
+
+ for (unsigned b = 0; b < num_banks; b++) {
+ if (bank_state[b] == BANK_ACTIVE) {
+ // Active banks are being precharged
+ numberofpresBanks[b] += 1;
+ actcyclesBanks[b] += zero_guard(timestamp - first_act_cycle_banks[b], "first_act_cycle is in the future (bank).");
+ }
+ }
+
+ idle_act_update(latest_read_cycle, latest_write_cycle, latest_act_cycle, timestamp);
+
+ latest_pre_cycle = timestamp;
+ // Reset the state for all banks to precharged.
+ for (auto& bs : bank_state) {
+ bs = BANK_PRECHARGED;
+ }
+ } else {
+ printWarning("All banks are already precharged!", MemCommand::PREA, timestamp, bank);
+ }
+}
+
+void CommandAnalysis::handlePdnFAct(unsigned bank, int64_t timestamp)
+{
+ // If command is fast-exit active power-down - update number of
+ // power-downs, set the power-down cycle and the memory mode to
+ // fast-exit active power-down. Save states of all the banks from
+ // the cycle before entering active power-down, to be returned to
+ // after powering-up. Update active and active idle cycles.
+ printWarningIfNotActive("All banks are precharged! Incorrect use of Active Power-Down.", MemCommand::PDN_F_ACT, timestamp, bank);
+ f_act_pdns++;
+ last_bank_state = bank_state;
+ pdn_cycle = timestamp;
+ actcycles += zero_guard(timestamp - first_act_cycle, "first_act_cycle is in the future.");
+ for (unsigned b = 0; b < num_banks; b++) {
+ if (bank_state[b] == BANK_ACTIVE) {
+ actcyclesBanks[b] += zero_guard(timestamp - first_act_cycle_banks[b], "first_act_cycle is in the future (bank).");
+ }
+ }
+ idle_act_update(latest_read_cycle, latest_write_cycle, latest_act_cycle, timestamp);
+ mem_state = CommandAnalysis::MS_PDN_F_ACT;
+}
+
+void CommandAnalysis::handlePdnSAct(unsigned bank, int64_t timestamp)
+{
+ // If command is slow-exit active power-down - update number of
+ // power-downs, set the power-down cycle and the memory mode to
+ // slow-exit active power-down. Save states of all the banks from
+ // the cycle before entering active power-down, to be returned to
+ // after powering-up. Update active and active idle cycles.
+ printWarningIfNotActive("All banks are precharged! Incorrect use of Active Power-Down.", MemCommand::PDN_S_ACT, timestamp, bank);
+ s_act_pdns++;
+ last_bank_state = bank_state;
+ pdn_cycle = timestamp;
+ actcycles += zero_guard(timestamp - first_act_cycle, "first_act_cycle is in the future.");
+ for (unsigned b = 0; b < num_banks; b++) {
+ if (bank_state[b] == BANK_ACTIVE) {
+ actcyclesBanks[b] += zero_guard(timestamp - first_act_cycle_banks[b], "first_act_cycle is in the future (bank).");
+ }
+ }
+ idle_act_update(latest_read_cycle, latest_write_cycle, latest_act_cycle, timestamp);
+ mem_state = CommandAnalysis::MS_PDN_S_ACT;
+}
+
+void CommandAnalysis::handlePdnFPre(unsigned bank, int64_t timestamp)
+{
+ // If command is fast-exit precharged power-down - update number of
+ // power-downs, set the power-down cycle and the memory mode to
+ // fast-exit precahrged power-down. Update precharged and precharged
+ // idle cycles.
+ printWarningIfActive("One or more banks are active! Incorrect use of Precharged Power-Down.", MemCommand::PDN_F_PRE, timestamp, bank);
+ f_pre_pdns++;
+ pdn_cycle = timestamp;
+ precycles += zero_guard(timestamp - last_pre_cycle, "3 last_pre_cycle is in the future.");
+ idle_pre_update(timestamp, latest_pre_cycle);
+ mem_state = CommandAnalysis::MS_PDN_F_PRE;
+}
+
+void CommandAnalysis::handlePdnSPre(unsigned bank, int64_t timestamp)
+{
+ // If command is slow-exit precharged power-down - update number of
+ // power-downs, set the power-down cycle and the memory mode to
+ // slow-exit precahrged power-down. Update precharged and precharged
+ // idle cycles.
+ printWarningIfActive("One or more banks are active! Incorrect use of Precharged Power-Down.", MemCommand::PDN_S_PRE, timestamp, bank);
+ s_pre_pdns++;
+ pdn_cycle = timestamp;
+ precycles += zero_guard(timestamp - last_pre_cycle, "4 last_pre_cycle is in the future.");
+ idle_pre_update(timestamp, latest_pre_cycle);
+ mem_state = CommandAnalysis::MS_PDN_S_PRE;
+}
+
+void CommandAnalysis::handlePupAct(int64_t timestamp)
+{
+ // If command is power-up in the active mode - check the power-down
+ // exit-mode employed (fast or slow), update the number of power-down
+ // and power-up cycles and the latest and first act cycle. Also, reset
+ // all the individual bank states to the respective saved states
+ // before entering power-down.
+ const MemTimingSpec& t = memSpec.memTimingSpec;
+
+ if (mem_state == CommandAnalysis::MS_PDN_F_ACT) {
+ f_act_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future.");
+ pup_act_cycles += t.XP;
+ latest_act_cycle = timestamp;
+ } else if (mem_state == CommandAnalysis::MS_PDN_S_ACT) {
+ s_act_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future.");
+ if (memSpec.memArchSpec.dll == false) {
+ pup_act_cycles += t.XP;
+ latest_act_cycle = timestamp;
+ } else {
+ pup_act_cycles += t.XPDLL - t.RCD;
+ latest_act_cycle = timestamp + zero_guard(t.XPDLL - (2 * t.RCD), "t.XPDLL - (2 * t.RCD) < 0");
+ }
+ } else {
+ cerr << "Incorrect use of Active Power-Up!" << endl;
+ }
+ mem_state = MS_NOT_IN_PD;
+ bank_state = last_bank_state;
+ first_act_cycle = timestamp;
+ std::fill(first_act_cycle_banks.begin(), first_act_cycle_banks.end(), timestamp);
+}
+
+void CommandAnalysis::handlePupPre(int64_t timestamp)
+{
+ // If command is power-up in the precharged mode - check the power-down
+ // exit-mode employed (fast or slow), update the number of power-down
+ // and power-up cycles and the latest and last pre cycle.
+ const MemTimingSpec& t = memSpec.memTimingSpec;
+ if (mem_state == CommandAnalysis::MS_PDN_F_PRE) {
+ f_pre_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future.");
+ pup_pre_cycles += t.XP;
+ latest_pre_cycle = timestamp;
+ } else if (mem_state == CommandAnalysis::MS_PDN_S_PRE) {
+ s_pre_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future.");
+ if (memSpec.memArchSpec.dll == false) {
+ pup_pre_cycles += t.XP;
+ latest_pre_cycle = timestamp;
+ } else {
+ pup_pre_cycles += t.XPDLL - t.RCD;
+ latest_pre_cycle = timestamp + zero_guard(t.XPDLL - t.RCD - t.RP, "t.XPDLL - t.RCD - t.RP");
+ }
+ } else {
+ cerr << "Incorrect use of Precharged Power-Up!" << endl;
+ }
+ mem_state = MS_NOT_IN_PD;
+ last_pre_cycle = timestamp;
+}
+
+void CommandAnalysis::handleSREn(unsigned bank, int64_t timestamp)
+{
+ // If command is self-refresh - update number of self-refreshes,
+ // set memory state to SREF, update precharge and idle precharge
+ // cycles and set the self-refresh cycle.
+ printWarningIfActive("One or more banks are active! SREF requires all banks to be precharged.", MemCommand::SREN, timestamp, bank);
+ numberofsrefs++;
+ sref_cycle = timestamp;
+ sref_cycle_window = timestamp;
+ sref_ref_pre_cycles_window = 0;
+ sref_ref_act_cycles_window = 0;
+ precycles += zero_guard(timestamp - last_pre_cycle, "5 last_pre_cycle is in the future.");
+ idle_pre_update(timestamp, latest_pre_cycle);
+ mem_state = CommandAnalysis::MS_SREF;
+}
+
+void CommandAnalysis::handleSREx(unsigned bank, int64_t timestamp)
+{
+ // If command is self-refresh exit - update the number of self-refresh
+ // clock cycles, number of active and precharged auto-refresh clock
+ // cycles during self-refresh and self-refresh exit based on the number
+ // of cycles in the self-refresh mode and auto-refresh duration (RFC).
+ // Set the last and latest precharge cycle accordingly and set the
+ // memory state to 0.
+ const MemTimingSpec& t = memSpec.memTimingSpec;
+ if (mem_state != CommandAnalysis::MS_SREF) {
+ cerr << "Incorrect use of Self-Refresh Power-Up!" << endl;
+ }
+ // The total duration of self-refresh is given by the difference between
+ // the current clock cycle and the clock cycle of entering self-refresh.
+ int64_t sref_duration = timestamp - sref_cycle;
+
+ // Negative or zero duration should never happen.
+ if (sref_duration <= 0) {
+ printWarning("Invalid Self-Refresh duration!", MemCommand::SREX, timestamp, bank);
+ sref_duration = 0;
+ }
+
+ // The minimum time that the DRAM must remain in Self-Refresh is CKESR.
+ if (sref_duration < t.CKESR) {
+ printWarning("Self-Refresh duration < CKESR!", MemCommand::SREX, timestamp, bank);
+ }
+
+ if (sref_duration >= t.RFC) {
+ /*
+ * Self-refresh Exit Context 1 (tSREF >= tRFC):
+ * The memory remained in self-refresh for a certain number of clock
+ * cycles greater than a refresh cycle time (RFC). Consequently, the
+ * initial auto-refresh accomplished.
+ *
+ *
+ * SREN # SREX
+ * | # ^
+ * | # |
+ * |<------------------------- tSREF ----------...----->|
+ * | # |
+ * | Initial Auto-Refresh # |
+ * v # |
+ * ------------------------------------#-------...-----------------> t
+ * #
+ * <------------- tRFC -------------->#
+ * <---- (tRFC - tRP) ----><-- tRP -->#
+ * | |
+ * v v
+ * sref_ref_act_cycles sref_ref_pre_cycles
+ *
+ *
+ * Summary:
+ * sref_cycles += tSREF – tRFC
+ * sref_ref_act_cycles += tRFC - tRP
+ * sref_ref_pre_cycles += tRP
+ * spup_ref_act_cycles += 0
+ * spup_ref_pre_cycles += 0
+ *
+ */
+
+ // The initial auto-refresh consumes (IDD5 − IDD3N) over one refresh
+ // period (RFC) from the start of the self-refresh.
+ sref_ref_act_cycles += t.RFC -
+ t.RP - sref_ref_act_cycles_window;
+ sref_ref_pre_cycles += t.RP - sref_ref_pre_cycles_window;
+ last_pre_cycle = timestamp;
+
+ // The IDD6 current is consumed for the time period spent in the
+ // self-refresh mode, which excludes the time spent in finishing the
+ // initial auto-refresh.
+ if (sref_cycle_window > sref_cycle + t.RFC) {
+ sref_cycles += zero_guard(timestamp - sref_cycle_window, "sref_cycle_window is in the future.");
+ } else {
+ sref_cycles += zero_guard(timestamp - sref_cycle - t.RFC, "sref_cycle - t.RFC < 0");
+ }
+
+ // IDD2N current is consumed when exiting the self-refresh state.
+ if (memSpec.memArchSpec.dll == false) {
+ spup_cycles += t.XS;
+ latest_pre_cycle = timestamp + zero_guard(t.XS - t.RP, "t.XS - t.RP < 0");
+ } else {
+ spup_cycles += t.XSDLL - t.RCD;
+ latest_pre_cycle = timestamp + zero_guard(t.XSDLL - t.RCD - t.RP, "t.XSDLL - t.RCD - t.RP < 0");
+ }
+
+ } else {
+ // Self-refresh Exit Context 2 (tSREF < tRFC):
+ // Exit self-refresh before the completion of the initial
+ // auto-refresh.
+
+ // Number of active cycles needed by an auto-refresh.
+ int64_t ref_act_cycles = t.RFC - t.RP;
+
+ if (sref_duration >= ref_act_cycles) {
+ /*
+ * Self-refresh Exit Context 2A (tSREF < tRFC && tSREF >= tRFC - tRP):
+ * The duration of self-refresh is equal or greater than the number
+ * of active cycles needed by the initial auto-refresh.
+ *
+ *
+ * SREN SREX
+ * | ^ #
+ * | | #
+ * |<------------------ tSREF --------------------->| #
+ * | | #
+ * | Initial Auto-Refresh #
+ * v | #
+ * -----------------------------------------------------------#--> t
+ * #
+ * <------------------------ tRFC -------------------------->#
+ * <------------- (tRFC - tRP)--------------><----- tRP ---->#
+ * | <-----><------->
+ * v | |
+ * sref_ref_act_cycles v v
+ * sref_ref_pre_cycles spup_ref_pre_cycles
+ *
+ *
+ * Summary:
+ * sref_cycles += 0
+ * sref_ref_act_cycles += tRFC - tRP
+ * sref_ref_pre_cycles += tSREF – (tRFC – tRP)
+ * spup_ref_act_cycles += 0
+ * spup_ref_pre_cycles += tRP – sref_ref_pre_cycles
+ *
+ */
+
+ // Number of precharged cycles (zero <= pre_cycles < RP)
+ int64_t pre_cycles = sref_duration - ref_act_cycles - sref_ref_pre_cycles_window;
+
+ sref_ref_act_cycles += ref_act_cycles - sref_ref_act_cycles_window;
+ sref_ref_pre_cycles += pre_cycles;
+
+ // Number of precharged cycles during the self-refresh power-up. It
+ // is at maximum tRP (if pre_cycles is zero).
+ int64_t spup_pre = t.RP - pre_cycles;
+
+ spup_ref_pre_cycles += spup_pre;
+
+ last_pre_cycle = timestamp + spup_pre;
+
+ if (memSpec.memArchSpec.dll == false) {
+ spup_cycles += t.XS - spup_pre;
+ latest_pre_cycle = timestamp + zero_guard(t.XS - spup_pre - t.RP, "t.XS - spup_pre - t.RP < 0");
+ } else {
+ spup_cycles += t.XSDLL - t.RCD - spup_pre;
+ latest_pre_cycle = timestamp + zero_guard(t.XSDLL - t.RCD - spup_pre - t.RP, "t.XSDLL - t.RCD - spup_pre - t.RP");
+ }
+ } else {
+ /*
+ * Self-refresh Exit Context 2B (tSREF < tRFC - tRP):
+ * self-refresh duration is shorter than the number of active cycles
+ * needed by the initial auto-refresh.
+ *
+ *
+ * SREN SREX
+ * | ^ #
+ * | | #
+ * |<-------------- tSREF ----------->| #
+ * | | #
+ * | Initial Auto-Refresh #
+ * v | #
+ * ------------------------------------------------------------#--> t
+ * #
+ * <------------------------ tRFC --------------------------->#
+ * <-------------- (tRFC - tRP)-------------><------ tRP ---->#
+ * <--------------------------------><------><--------------->
+ * | | |
+ * v v v
+ * sref_ref_act_cycles spup_ref_act_cycles spup_ref_pre_cycles
+ *
+ *
+ * Summary:
+ * sref_cycles += 0
+ * sref_ref_act_cycles += tSREF
+ * sref_ref_pre_cycles += 0
+ * spup_ref_act_cycles += (tRFC – tRP) - tSREF
+ * spup_ref_pre_cycles += tRP
+ *
+ */
+
+ sref_ref_act_cycles += sref_duration - sref_ref_act_cycles_window;
+
+ int64_t spup_act = (t.RFC - t.RP) - sref_duration;
+
+ spup_ref_act_cycles += spup_act;
+ spup_ref_pre_cycles += t.RP;
+
+ last_pre_cycle = timestamp + spup_act + t.RP;
+ if (memSpec.memArchSpec.dll == false) {
+ spup_cycles += t.XS - spup_act - t.RP;
+ latest_pre_cycle = timestamp + zero_guard(t.XS - spup_act - (2 * t.RP), "t.XS - spup_act - (2 * t.RP) < 0");
+ } else {
+ spup_cycles += t.XSDLL - t.RCD - spup_act - t.RP;
+ latest_pre_cycle = timestamp + zero_guard(t.XSDLL - t.RCD - spup_act - (2 * t.RP), "t.XSDLL - t.RCD - spup_act - (2 * t.RP) < 0");
+ }
+ }
+ }
+ mem_state = MS_NOT_IN_PD;
+}
+
+
+void CommandAnalysis::handleNopEnd(int64_t timestamp)
+{
+ // May be optionally used at the end of memory trace for better accuracy
+ // Update all counters based on completion of operations.
+ const MemTimingSpec& t = memSpec.memTimingSpec;
+ for (unsigned b = 0; b < num_banks; b++) {
+ if (bank_state[b] == BANK_ACTIVE) {
+ actcyclesBanks[b] += zero_guard(timestamp - first_act_cycle_banks[b], "first_act_cycle is in the future (bank)");
+ }
+ }
+
+ if (nActiveBanks() > 0 && mem_state == MS_NOT_IN_PD) {
+ actcycles += zero_guard(timestamp - first_act_cycle, "first_act_cycle is in the future");
+ idle_act_update(latest_read_cycle, latest_write_cycle,
+ latest_act_cycle, timestamp);
+ } else if (nActiveBanks() == 0 && mem_state == MS_NOT_IN_PD) {
+ precycles += zero_guard(timestamp - last_pre_cycle, "6 last_pre_cycle is in the future");
+ idle_pre_update(timestamp, latest_pre_cycle);
+ } else if (mem_state == CommandAnalysis::MS_PDN_F_ACT) {
+ f_act_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future");
+ } else if (mem_state == CommandAnalysis::MS_PDN_S_ACT) {
+ s_act_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future");
+ } else if (mem_state == CommandAnalysis::MS_PDN_F_PRE) {
+ f_pre_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future");
+ } else if (mem_state == CommandAnalysis::MS_PDN_S_PRE) {
+ s_pre_pdcycles += zero_guard(timestamp - pdn_cycle, "pdn_cycle is in the future");
+ } else if (mem_state == CommandAnalysis::MS_SREF) {
+ auto rfc_minus_rp = (t.RFC - t.RP);
+
+ if (timestamp > sref_cycle + t.RFC) {
+ if (sref_cycle_window <= sref_cycle + rfc_minus_rp) {
+ sref_ref_act_cycles += rfc_minus_rp - sref_ref_act_cycles_window;
+ sref_ref_act_cycles_window = rfc_minus_rp;
+ sref_cycle_window = sref_cycle + rfc_minus_rp;
+ }
+ if (sref_cycle_window <= sref_cycle + t.RFC) {
+ sref_ref_pre_cycles += t.RP - sref_ref_pre_cycles_window;
+ sref_ref_pre_cycles_window = t.RP;
+ sref_cycle_window = sref_cycle + t.RFC;
+ }
+ sref_cycles += zero_guard(timestamp - sref_cycle_window, "sref_cycle_window is in the future");
+ } else if (timestamp > sref_cycle + rfc_minus_rp) {
+
+ if (sref_cycle_window <= sref_cycle + rfc_minus_rp) {
+ sref_ref_act_cycles += rfc_minus_rp - sref_ref_act_cycles_window;
+ sref_ref_act_cycles_window = rfc_minus_rp;
+ sref_cycle_window = sref_cycle + rfc_minus_rp;
+ }
+ sref_ref_pre_cycles_window += timestamp - sref_cycle_window;
+ sref_ref_pre_cycles += timestamp - sref_cycle_window;
+ } else {
+ sref_ref_act_cycles_window += timestamp - sref_cycle_window;
+ sref_ref_act_cycles += timestamp - sref_cycle_window;
+ }
+ }
+}
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Authors: Karthik Chandrasekar, Matthias Jung, Omar Naji, Sven Goossens
+ * Authors: Karthik Chandrasekar,
+ * Matthias Jung,
+ * Omar Naji,
+ * Sven Goossens,
+ * Éder F. Zulian
+ * Subash Kannoth
+ * Felipe S. Prado
*
*/
}
}
-CommandAnalysis::CommandAnalysis(const int64_t nbrofBanks)
+CommandAnalysis::CommandAnalysis(const Data::MemorySpecification& memSpec) :
+ memSpec(memSpec)
+
{
+ auto &nBanks = memSpec.memArchSpec.nbrOfBanks;
// Initializing all counters and variables
+ numberofactsBanks.assign(static_cast<size_t>(nBanks), 0);
+ numberofpresBanks.assign(static_cast<size_t>(nBanks), 0);
+ numberofreadsBanks.assign(static_cast<size_t>(nBanks), 0);
+ numberofwritesBanks.assign(static_cast<size_t>(nBanks), 0);
+ actcyclesBanks.assign(static_cast<size_t>(nBanks), 0);
+ numberofrefbBanks.assign(static_cast<size_t>(nBanks), 0);
+
+ first_act_cycle_banks.resize(static_cast<size_t>(nBanks), 0);
+
clearStats(0);
zero = 0;
- bankstate.resize(static_cast<size_t>(nbrofBanks), 0);
- last_states.resize(static_cast<size_t>(nbrofBanks));
- mem_state = 0;
- num_active_banks = 0;
+ bank_state.resize(static_cast<size_t>(nBanks), BANK_PRECHARGED);
+ last_bank_state.resize(static_cast<size_t>(nBanks), BANK_PRECHARGED);
+ mem_state = MS_NOT_IN_PD;
cmd_list.clear();
cached_cmd.clear();
- activation_cycle.resize(static_cast<size_t>(nbrofBanks), 0);
+ activation_cycle.resize(static_cast<size_t>(nBanks), 0);
+ num_banks = nBanks;
}
// function to clear counters
void CommandAnalysis::clearStats(const int64_t timestamp)
{
+ std::fill(numberofactsBanks.begin(), numberofactsBanks.end(), 0);
+ std::fill(numberofpresBanks.begin(), numberofpresBanks.end(), 0);
+ std::fill(numberofreadsBanks.begin(), numberofreadsBanks.end(), 0);
+ std::fill(numberofwritesBanks.begin(), numberofwritesBanks.end(), 0);
+ std::fill(actcyclesBanks.begin(), actcyclesBanks.end(), 0);
- numberofacts = 0;
- numberofpres = 0;
- numberofreads = 0;
- numberofwrites = 0;
numberofrefs = 0;
f_act_pdns = 0;
s_act_pdns = 0;
// reset count references to timestamp so that they are moved
// to start of next stats generation
+ std::fill(first_act_cycle_banks.begin(), first_act_cycle_banks.end(), timestamp);
first_act_cycle = timestamp;
- last_pre_cycle = timestamp;
+
pdn_cycle = timestamp;
- sref_cycle = timestamp;
+ sref_cycle_window = timestamp;
+
end_act_op = timestamp;
end_read_op = timestamp;
end_write_op = timestamp;
- latest_act_cycle = -1;
latest_read_cycle = -1;
latest_write_cycle = -1;
if (timestamp == 0) {
- // set to -1 at beginning of simulation
- latest_pre_cycle = -1;
+ latest_pre_cycle = -1;
+ latest_act_cycle = -1;
+ sref_cycle = 0;
+ last_pre_cycle = 0;
+ sref_ref_act_cycles_window = 0;
+ sref_ref_pre_cycles_window = 0;
} else {
- // NOTE: reference is adjusted by tRP (PRE delay) when updating counter
- // could remove tRP to ensure counter starts at beginning of next block;
- // currently simply setting to timestamp for simplicity
- latest_pre_cycle = timestamp;
+ last_pre_cycle = max(timestamp,last_pre_cycle);
+
+ latest_pre_cycle = max(timestamp, latest_pre_cycle);
+
+ if (latest_act_cycle < timestamp)
+ latest_act_cycle = -1;
}
}
{
cached_cmd.clear();
cmd_list.clear();
- last_states.clear();
- bankstate.clear();
+ last_bank_state.clear();
+ bank_state.clear();
}
// Reads through the trace file, identifies the timestamp, command and bank
// precharge to a cached command list and computes the precharge offset from the
// issued command timestamp, when the auto-precharge would kick in
-void CommandAnalysis::getCommands(const Data::MemorySpecification& memSpec,
- std::vector<MemCommand>& list, bool lastupdate)
+void CommandAnalysis::getCommands(std::vector<MemCommand>& list, bool lastupdate, int64_t timestamp)
{
+ if (!next_window_cmd_list.empty()) {
+ list.insert(list.begin(), next_window_cmd_list.begin(), next_window_cmd_list.end());
+ next_window_cmd_list.clear();
+ }
for (size_t i = 0; i < list.size(); ++i) {
MemCommand& cmd = list[i];
MemCommand::cmds cmdType = cmd.getType();
activation_cycle[cmd.getBank()] + memSpec.memTimingSpec.RAS);
list.push_back(MemCommand(MemCommand::PRE, cmd.getBank(), preTime));
}
+
+ if (!lastupdate && timestamp > 0) {
+ if(cmd.getTimeInt64() > timestamp)
+ {
+ MemCommand nextWindowCmd = list[i];
+ next_window_cmd_list.push_back(nextWindowCmd);
+ list.erase(find(list.begin(), list.end(), cmd));
+ }
+ }
}
sort(list.begin(), list.end(), commandSorter);
if (lastupdate && list.empty() == false) {
// Add cycles at the end of the list
- int64_t t = timeToCompletion(memSpec, list.back().getType()) + list.back().getTimeInt64() - 1;
+ int64_t t = timeToCompletion(list.back().getType()) + list.back().getTimeInt64() - 1;
list.push_back(MemCommand(MemCommand::NOP, 0, t));
}
- evaluate(memSpec, list);
+ evaluateCommands(list);
} // CommandAnalysis::getCommands
-// To get the time of completion of the issued command
-// Derived based on JEDEC specifications
-
-int64_t CommandAnalysis::timeToCompletion(const MemorySpecification&
- memSpec, MemCommand::cmds type)
-{
- int64_t offset = 0;
- const MemTimingSpec& memTimingSpec = memSpec.memTimingSpec;
- const MemArchitectureSpec& memArchSpec = memSpec.memArchSpec;
-
- if (type == MemCommand::RD) {
- offset = memTimingSpec.RL +
- memTimingSpec.DQSCK + 1 + (memArchSpec.burstLength /
- memArchSpec.dataRate);
- } else if (type == MemCommand::WR) {
- offset = memTimingSpec.WL +
- (memArchSpec.burstLength / memArchSpec.dataRate) +
- memTimingSpec.WR;
- } else if (type == MemCommand::ACT) {
- offset = memTimingSpec.RCD;
- } else if ((type == MemCommand::PRE) || (type == MemCommand::PREA)) {
- offset = memTimingSpec.RP;
- }
- return offset;
-} // CommandAnalysis::timeToCompletion
-
// Used to analyse a given list of commands and identify command timings
// and memory state transitions
-void CommandAnalysis::evaluate(const MemorySpecification& memSpec,
- vector<MemCommand>& cmd_list)
+void CommandAnalysis::evaluateCommands(vector<MemCommand>& cmd_list)
{
// for each command identify timestamp, type and bank
for (auto cmd : cmd_list) {
// For command type
int type = cmd.getType();
// For command bank
- int bank = static_cast<int>(cmd.getBank());
+ unsigned bank = cmd.getBank();
// Command Issue timestamp in clock cycles (cc)
int64_t timestamp = cmd.getTimeInt64();
if (type == MemCommand::ACT) {
- printWarningIfPoweredDown("Command issued while in power-down mode.", type, timestamp, bank);
- // If command is ACT - update number of acts, bank state of the
- // target bank, first and latest activation cycle and the memory
- // state. Update the number of precharged/idle-precharged cycles.
- numberofacts++;
- if (bankstate[static_cast<size_t>(bank)] == 1) {
- printWarning("Bank is already active!", type, timestamp, bank);
- }
- bankstate[static_cast<size_t>(bank)] = 1;
- if (num_active_banks == 0) {
- first_act_cycle = timestamp;
- precycles += max(zero, timestamp - last_pre_cycle);
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- }
- latest_act_cycle = timestamp;
- num_active_banks++;
+ handleAct(bank, timestamp);
} else if (type == MemCommand::RD) {
- printWarningIfPoweredDown("Command issued while in power-down mode.", type, timestamp, bank);
- // If command is RD - update number of reads and read cycle. Check
- // for active idle cycles (if any).
- if (bankstate[static_cast<size_t>(bank)] == 0) {
- printWarning("Bank is not active!", type, timestamp, bank);
- }
- numberofreads++;
- idle_act_update(memSpec, latest_read_cycle, latest_write_cycle,
- latest_act_cycle, timestamp);
- latest_read_cycle = timestamp;
+ handleRd(bank, timestamp);
} else if (type == MemCommand::WR) {
- printWarningIfPoweredDown("Command issued while in power-down mode.", type, timestamp, bank);
- // If command is WR - update number of writes and write cycle. Check
- // for active idle cycles (if any).
- if (bankstate[static_cast<size_t>(bank)] == 0) {
- printWarning("Bank is not active!", type, timestamp, bank);
- }
- numberofwrites++;
- idle_act_update(memSpec, latest_read_cycle, latest_write_cycle,
- latest_act_cycle, timestamp);
- latest_write_cycle = timestamp;
+ handleWr(bank, timestamp);
} else if (type == MemCommand::REF) {
- printWarningIfPoweredDown("Command issued while in power-down mode.", type, timestamp, bank);
- // If command is REF - update number of refreshes, set bank state of
- // all banks to ACT, set the last PRE cycles at RFC-RP cycles from
- // timestamp, set the number of active cycles to RFC-RP and check
- // for active and precharged cycles and idle active and idle
- // precharged cycles before refresh. Change memory state to 0.
- printWarningIfActive("One or more banks are active! REF requires all banks to be precharged.", type, timestamp, bank);
- numberofrefs++;
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- first_act_cycle = timestamp;
- precycles += max(zero, timestamp - last_pre_cycle);
- last_pre_cycle = timestamp + memSpec.memTimingSpec.RFC -
- memSpec.memTimingSpec.RP;
- latest_pre_cycle = last_pre_cycle;
- actcycles += memSpec.memTimingSpec.RFC - memSpec.memTimingSpec.RP;
- num_active_banks = 0;
- for (auto& b : bankstate) {
- b = 0;
- }
+ handleRef(bank, timestamp);
+ } else if (type == MemCommand::REFB) {
+ handleRefB(bank, timestamp);
} else if (type == MemCommand::PRE) {
- printWarningIfPoweredDown("Command issued while in power-down mode.", type, timestamp, bank);
- // If command is explicit PRE - update number of precharges, bank
- // state of the target bank and last and latest precharge cycle.
- // Calculate the number of active cycles if the memory was in the
- // active state before, but there is a state transition to PRE now.
- // If not, update the number of precharged cycles and idle cycles.
- // Update memory state if needed.
- if (bankstate[static_cast<size_t>(bank)] == 1) {
- numberofpres++;
- }
- bankstate[static_cast<size_t>(bank)] = 0;
-
- if (num_active_banks == 1) {
- actcycles += max(zero, timestamp - first_act_cycle);
- last_pre_cycle = timestamp;
- idle_act_update(memSpec, latest_read_cycle, latest_write_cycle,
- latest_act_cycle, timestamp);
- } else if (num_active_banks == 0) {
- precycles += max(zero, timestamp - last_pre_cycle);
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- last_pre_cycle = timestamp;
- }
- latest_pre_cycle = timestamp;
- if (num_active_banks > 0) {
- num_active_banks--;
- } else {
- num_active_banks = 0;
- }
+ handlePre(bank, timestamp);
} else if (type == MemCommand::PREA) {
- printWarningIfPoweredDown("Command issued while in power-down mode.", type, timestamp, bank);
- // If command is explicit PREA (precharge all banks) - update
- // number of precharges by the number of banks, update the bank
- // state of all banks to PRE and set the precharge cycle.
- // Calculate the number of active cycles if the memory was in the
- // active state before, but there is a state transition to PRE now.
- // If not, update the number of precharged cycles and idle cycles.
- numberofpres += num_active_banks;
-
- if (num_active_banks > 0) {
- actcycles += max(zero, timestamp - first_act_cycle);
- idle_act_update(memSpec, latest_read_cycle, latest_write_cycle,
- latest_act_cycle, timestamp);
- } else if (num_active_banks == 0) {
- precycles += max(zero, timestamp - last_pre_cycle);
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- }
-
- latest_pre_cycle = timestamp;
- last_pre_cycle = timestamp;
-
- num_active_banks = 0;
-
- for (auto& b : bankstate) {
- b = 0;
- }
+ handlePreA(bank, timestamp);
} else if (type == MemCommand::PDN_F_ACT) {
- // If command is fast-exit active power-down - update number of
- // power-downs, set the power-down cycle and the memory mode to
- // fast-exit active power-down. Save states of all the banks from
- // the cycle before entering active power-down, to be returned to
- // after powering-up. Update active and active idle cycles.
- printWarningIfNotActive("All banks are precharged! Incorrect use of Active Power-Down.", type, timestamp, bank);
- f_act_pdns++;
- last_states = bankstate;
- pdn_cycle = timestamp;
- actcycles += max(zero, timestamp - first_act_cycle);
- idle_act_update(memSpec, latest_read_cycle, latest_write_cycle,
- latest_act_cycle, timestamp);
- mem_state = CommandAnalysis::MS_PDN_F_ACT;
+ handlePdnFAct(bank, timestamp);
} else if (type == MemCommand::PDN_S_ACT) {
- // If command is slow-exit active power-down - update number of
- // power-downs, set the power-down cycle and the memory mode to
- // slow-exit active power-down. Save states of all the banks from
- // the cycle before entering active power-down, to be returned to
- // after powering-up. Update active and active idle cycles.
- printWarningIfNotActive("All banks are precharged! Incorrect use of Active Power-Down.", type, timestamp, bank);
- s_act_pdns++;
- last_states = bankstate;
- pdn_cycle = timestamp;
- actcycles += max(zero, timestamp - first_act_cycle);
- idle_act_update(memSpec, latest_read_cycle, latest_write_cycle,
- latest_act_cycle, timestamp);
- mem_state = CommandAnalysis::MS_PDN_S_ACT;
+ handlePdnSAct(bank, timestamp);
} else if (type == MemCommand::PDN_F_PRE) {
- // If command is fast-exit precharged power-down - update number of
- // power-downs, set the power-down cycle and the memory mode to
- // fast-exit precahrged power-down. Update precharged and precharged
- // idle cycles.
- printWarningIfActive("One or more banks are active! Incorrect use of Precharged Power-Down.", type, timestamp, bank);
- f_pre_pdns++;
- pdn_cycle = timestamp;
- precycles += max(zero, timestamp - last_pre_cycle);
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- mem_state = CommandAnalysis::MS_PDN_F_PRE;
+ handlePdnFPre(bank, timestamp);
} else if (type == MemCommand::PDN_S_PRE) {
- // If command is slow-exit precharged power-down - update number of
- // power-downs, set the power-down cycle and the memory mode to
- // slow-exit precahrged power-down. Update precharged and precharged
- // idle cycles.
- printWarningIfActive("One or more banks are active! Incorrect use of Precharged Power-Down.", type, timestamp, bank);
- s_pre_pdns++;
- pdn_cycle = timestamp;
- precycles += max(zero, timestamp - last_pre_cycle);
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- mem_state = CommandAnalysis::MS_PDN_S_PRE;
+ handlePdnSPre(bank, timestamp);
} else if (type == MemCommand::PUP_ACT) {
- // If command is power-up in the active mode - check the power-down
- // exit-mode employed (fast or slow), update the number of power-down
- // and power-up cycles and the latest and first act cycle. Also, reset
- // all the individual bank states to the respective saved states
- // before entering power-down.
- if (mem_state == CommandAnalysis::MS_PDN_F_ACT) {
- f_act_pdcycles += max(zero, timestamp - pdn_cycle);
- pup_act_cycles += memSpec.memTimingSpec.XP;
- latest_act_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XP - memSpec.memTimingSpec.RCD);
- } else if (mem_state == CommandAnalysis::MS_PDN_S_ACT) {
- s_act_pdcycles += max(zero, timestamp - pdn_cycle);
- if (memSpec.memArchSpec.dll == false) {
- pup_act_cycles += memSpec.memTimingSpec.XP;
- latest_act_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XP - memSpec.memTimingSpec.RCD);
- } else {
- pup_act_cycles += memSpec.memTimingSpec.XPDLL -
- memSpec.memTimingSpec.RCD;
- latest_act_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XPDLL -
- (2 * memSpec.memTimingSpec.RCD));
- }
- } else if (mem_state != CommandAnalysis::MS_PDN_S_ACT || mem_state != CommandAnalysis::MS_PDN_F_ACT) {
- cerr << "Incorrect use of Active Power-Up!" << endl;
- }
- num_active_banks = 0;
- mem_state = 0;
- bankstate = last_states;
- for (auto& a : last_states) {
- num_active_banks += static_cast<unsigned int>(a);
- }
- first_act_cycle = timestamp;
+ handlePupAct(timestamp);
} else if (type == MemCommand::PUP_PRE) {
- // If command is power-up in the precharged mode - check the power-down
- // exit-mode employed (fast or slow), update the number of power-down
- // and power-up cycles and the latest and last pre cycle.
- if (mem_state == CommandAnalysis::MS_PDN_F_PRE) {
- f_pre_pdcycles += max(zero, timestamp - pdn_cycle);
- pup_pre_cycles += memSpec.memTimingSpec.XP;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XP - memSpec.memTimingSpec.RP);
- } else if (mem_state == CommandAnalysis::MS_PDN_S_PRE) {
- s_pre_pdcycles += max(zero, timestamp - pdn_cycle);
- if (memSpec.memArchSpec.dll == false) {
- pup_pre_cycles += memSpec.memTimingSpec.XP;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XP - memSpec.memTimingSpec.RP);
- } else {
- pup_pre_cycles += memSpec.memTimingSpec.XPDLL -
- memSpec.memTimingSpec.RCD;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XPDLL - memSpec.memTimingSpec.RCD -
- memSpec.memTimingSpec.RP);
- }
- } else if (mem_state != CommandAnalysis::MS_PDN_S_PRE || mem_state != CommandAnalysis::MS_PDN_F_PRE) {
- cerr << "Incorrect use of Precharged Power-Up!" << endl;
- }
- mem_state = 0;
- num_active_banks = 0;
- last_pre_cycle = timestamp;
+ handlePupPre(timestamp);
} else if (type == MemCommand::SREN) {
- // If command is self-refresh - update number of self-refreshes,
- // set memory state to SREF, update precharge and idle precharge
- // cycles and set the self-refresh cycle.
- printWarningIfActive("One or more banks are active! SREF requires all banks to be precharged.", type, timestamp, bank);
- numberofsrefs++;
- sref_cycle = timestamp;
- precycles += max(zero, timestamp - last_pre_cycle);
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- mem_state = CommandAnalysis::MS_SREF;
+ handleSREn(bank, timestamp);
} else if (type == MemCommand::SREX) {
- // If command is self-refresh exit - update the number of self-refresh
- // clock cycles, number of active and precharged auto-refresh clock
- // cycles during self-refresh and self-refresh exit based on the number
- // of cycles in the self-refresh mode and auto-refresh duration (RFC).
- // Set the last and latest precharge cycle accordingly and set the
- // memory state to 0.
- if (mem_state != CommandAnalysis::MS_SREF) {
- cerr << "Incorrect use of Self-Refresh Power-Up!" << endl;
- }
- if (max(zero, timestamp - sref_cycle) >= memSpec.memTimingSpec.RFC) {
- sref_cycles += max(zero, timestamp - sref_cycle
- - memSpec.memTimingSpec.RFC);
- sref_ref_act_cycles += memSpec.memTimingSpec.RFC -
- memSpec.memTimingSpec.RP;
- sref_ref_pre_cycles += memSpec.memTimingSpec.RP;
- last_pre_cycle = timestamp;
- if (memSpec.memArchSpec.dll == false) {
- spup_cycles += memSpec.memTimingSpec.XS;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XS - memSpec.memTimingSpec.RP);
- } else {
- spup_cycles += memSpec.memTimingSpec.XSDLL -
- memSpec.memTimingSpec.RCD;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XSDLL - memSpec.memTimingSpec.RCD
- - memSpec.memTimingSpec.RP);
- }
- } else {
- int64_t sref_diff = memSpec.memTimingSpec.RFC - memSpec.memTimingSpec.RP;
- int64_t sref_pre = max(zero, timestamp - sref_cycle - sref_diff);
- int64_t spup_pre = memSpec.memTimingSpec.RP - sref_pre;
- int64_t sref_act = max(zero, timestamp - sref_cycle);
- int64_t spup_act = memSpec.memTimingSpec.RFC - sref_act;
-
- if (max(zero, timestamp - sref_cycle) >= sref_diff) {
- sref_ref_act_cycles += sref_diff;
- sref_ref_pre_cycles += sref_pre;
- spup_ref_pre_cycles += spup_pre;
- last_pre_cycle = timestamp + spup_pre;
- if (memSpec.memArchSpec.dll == false) {
- spup_cycles += memSpec.memTimingSpec.XS - spup_pre;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XS - spup_pre -
- memSpec.memTimingSpec.RP);
- } else {
- spup_cycles += memSpec.memTimingSpec.XSDLL -
- memSpec.memTimingSpec.RCD - spup_pre;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XSDLL - memSpec.memTimingSpec.RCD -
- spup_pre - memSpec.memTimingSpec.RP);
- }
- } else {
- sref_ref_act_cycles += sref_act;
- spup_ref_act_cycles += spup_act;
- spup_ref_pre_cycles += memSpec.memTimingSpec.RP;
- last_pre_cycle = timestamp + spup_act + memSpec.memTimingSpec.RP;
- if (memSpec.memArchSpec.dll == false) {
- spup_cycles += memSpec.memTimingSpec.XS - spup_act -
- memSpec.memTimingSpec.RP;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XS - spup_act -
- (2 * memSpec.memTimingSpec.RP));
- } else {
- spup_cycles += memSpec.memTimingSpec.XSDLL -
- memSpec.memTimingSpec.RCD - spup_act -
- memSpec.memTimingSpec.RP;
- latest_pre_cycle = max(timestamp, timestamp +
- memSpec.memTimingSpec.XSDLL - memSpec.memTimingSpec.RCD -
- spup_act - (2 * memSpec.memTimingSpec.RP));
- }
- }
- }
- mem_state = 0;
- num_active_banks = 0;
+ handleSREx(bank, timestamp);
} else if (type == MemCommand::END || type == MemCommand::NOP) {
- // May be optionally used at the end of memory trace for better accuracy
- // Update all counters based on completion of operations.
- if (num_active_banks > 0 && mem_state == 0) {
- actcycles += max(zero, timestamp - first_act_cycle);
- idle_act_update(memSpec, latest_read_cycle, latest_write_cycle,
- latest_act_cycle, timestamp);
- } else if (num_active_banks == 0 && mem_state == 0) {
- precycles += max(zero, timestamp - last_pre_cycle);
- idle_pre_update(memSpec, timestamp, latest_pre_cycle);
- } else if (mem_state == CommandAnalysis::MS_PDN_F_ACT) {
- f_act_pdcycles += max(zero, timestamp - pdn_cycle);
- } else if (mem_state == CommandAnalysis::MS_PDN_S_ACT) {
- s_act_pdcycles += max(zero, timestamp - pdn_cycle);
- } else if (mem_state == CommandAnalysis::MS_PDN_F_PRE) {
- f_pre_pdcycles += max(zero, timestamp - pdn_cycle);
- } else if (mem_state == CommandAnalysis::MS_PDN_S_PRE) {
- s_pre_pdcycles += max(zero, timestamp - pdn_cycle);
- } else if (mem_state == CommandAnalysis::MS_SREF) {
- sref_cycles += max(zero, timestamp - sref_cycle);
- }
+ handleNopEnd(timestamp);
} else {
printWarning("Unknown command given, exiting.", type, timestamp, bank);
exit(-1);
}
}
-} // CommandAnalysis::evaluate
+} // CommandAnalysis::evaluateCommands
// To update idle period information whenever active cycles may be idle
-void CommandAnalysis::idle_act_update(const MemorySpecification& memSpec,
- int64_t latest_read_cycle, int64_t latest_write_cycle,
+void CommandAnalysis::idle_act_update(int64_t latest_read_cycle, int64_t latest_write_cycle,
int64_t latest_act_cycle, int64_t timestamp)
{
if (latest_read_cycle >= 0) {
- end_read_op = latest_read_cycle + timeToCompletion(memSpec,
- MemCommand::RD) - 1;
+ end_read_op = latest_read_cycle + timeToCompletion(MemCommand::RD) - 1;
}
if (latest_write_cycle >= 0) {
- end_write_op = latest_write_cycle + timeToCompletion(memSpec,
- MemCommand::WR) - 1;
+ end_write_op = latest_write_cycle + timeToCompletion(MemCommand::WR) - 1;
}
if (latest_act_cycle >= 0) {
- end_act_op = latest_act_cycle + timeToCompletion(memSpec,
- MemCommand::ACT) - 1;
+ end_act_op = latest_act_cycle + timeToCompletion(MemCommand::ACT) - 1;
}
idlecycles_act += max(zero, timestamp - max(max(end_read_op, end_write_op),
} // CommandAnalysis::idle_act_update
// To update idle period information whenever precharged cycles may be idle
-void CommandAnalysis::idle_pre_update(const MemorySpecification& memSpec,
- int64_t timestamp, int64_t latest_pre_cycle)
+void CommandAnalysis::idle_pre_update(int64_t timestamp, int64_t latest_pre_cycle)
{
if (latest_pre_cycle > 0) {
idlecycles_pre += max(zero, timestamp - latest_pre_cycle -
}
}
-void CommandAnalysis::printWarningIfActive(const string& warning, int type, int64_t timestamp, int bank)
-{
- if (num_active_banks != 0) {
- printWarning(warning, type, timestamp, bank);
- }
-}
-
-void CommandAnalysis::printWarningIfNotActive(const string& warning, int type, int64_t timestamp, int bank)
-{
- if (num_active_banks == 0) {
- printWarning(warning, type, timestamp, bank);
- }
-}
-
-void CommandAnalysis::printWarningIfPoweredDown(const string& warning, int type, int64_t timestamp, int bank)
-{
- if (mem_state != 0) {
- printWarning(warning, type, timestamp, bank);
- }
-}
-
-void CommandAnalysis::printWarning(const string& warning, int type, int64_t timestamp, int bank)
-{
- cerr << "WARNING: " << warning << endl;
- cerr << "Command: " << type << ", Timestamp: " << timestamp <<
- ", Bank: " << bank << endl;
-}
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Authors: Karthik Chandrasekar, Matthias Jung, Omar Naji
+ * Authors: Karthik Chandrasekar
+ * Matthias Jung
+ * Omar Naji
+ * Subash Kannoth
+ * Éder F. Zulian
+ * Felipe S. Prado
*
*/
public:
// Power-Down and Self-refresh related memory states
enum memstate {
- MS_PDN_F_ACT = 10, MS_PDN_S_ACT = 11, MS_PDN_F_PRE = 12,
+ MS_NOT_IN_PD = 0, MS_PDN_F_ACT = 10, MS_PDN_S_ACT = 11, MS_PDN_F_PRE = 12,
MS_PDN_S_PRE = 13, MS_SREF = 14
};
// Returns number of reads, writes, acts, pres and refs in the trace
- CommandAnalysis(const int64_t nbrofBanks);
-
- // Number of activate commands
- int64_t numberofacts;
- // Number of precharge commands
- int64_t numberofpres;
- // Number of reads commands
- int64_t numberofreads;
- // Number of writes commands
- int64_t numberofwrites;
+ CommandAnalysis(const MemorySpecification& memSpec);
+
+ // Number of activate commands per bank
+ std::vector<int64_t> numberofactsBanks;
+ // Number of precharge commands per bank
+ std::vector<int64_t> numberofpresBanks;
+ // Number of reads commands per bank
+ std::vector<int64_t> numberofreadsBanks;
+ // Number of writes commands per bank
+ std::vector<int64_t> numberofwritesBanks;
// Number of refresh commands
int64_t numberofrefs;
+ // Number of bankwise refresh commands
+ std::vector<int64_t> numberofrefbBanks;
// Number of precharge cycles
int64_t precycles;
// Number of active cycles
int64_t actcycles;
+ std::vector<int64_t> actcyclesBanks;
// Number of Idle cycles in the active state
int64_t idlecycles_act;
// Number of Idle cycles in the precharge state
int64_t f_pre_pdcycles;
// Number of clock cycles in slow-exit precharged power-down mode
int64_t s_pre_pdcycles;
- // Number of clock cycles in self-refresh mode
+ // Number of clock cycles in self-refresh mode (excludes the initial
+ // auto-refresh). During this time the current drawn is IDD6.
int64_t sref_cycles;
// Number of clock cycles in activate power-up mode
int64_t pup_act_cycles;
// Number of clock cycles in self-refresh power-up mode
int64_t spup_cycles;
- // Number of active auto-refresh cycles in self-refresh mode
+ // Number of active cycles for the initial auto-refresh when entering
+ // self-refresh mode.
int64_t sref_ref_act_cycles;
+ // Number of active auto-refresh cycles in self-refresh mode already used to calculate the energy of the previous windows
+ int64_t sref_ref_act_cycles_window;
// Number of precharged auto-refresh cycles in self-refresh mode
int64_t sref_ref_pre_cycles;
+ // Number of precharged auto-refresh cycles in self-refresh mode already used to calculate the energy of the previous window
+ int64_t sref_ref_pre_cycles_window;
// Number of active auto-refresh cycles during self-refresh exit
int64_t spup_ref_act_cycles;
// Number of precharged auto-refresh cycles during self-refresh exit
void clear();
// To identify auto-precharges
- void getCommands(const MemorySpecification& memSpec,
- std::vector<MemCommand>& list,
- bool lastupdate);
+ void getCommands(std::vector<MemCommand>& list,
+ bool lastupdate,
+ int64_t timestamp = 0);
private:
+ MemorySpecification memSpec;
+
+ // Possible bank states are precharged or active
+ enum BankState {
+ BANK_PRECHARGED = 0,
+ BANK_ACTIVE
+ };
+
int64_t zero;
// Cached last read command from the file
std::vector<MemCommand> cached_cmd;
// Stores the memory commands for analysis
std::vector<MemCommand> cmd_list;
+ //Stores the memory commands for the next window
+ std::vector<MemCommand> next_window_cmd_list;
+
// To save states of the different banks, before entering active
// power-down mode (slow/fast-exit).
- std::vector<int> last_states;
+ std::vector<BankState> last_bank_state;
// Bank state vector
- std::vector<int> bankstate;
+ std::vector<BankState> bank_state;
std::vector<int64_t> activation_cycle;
// To keep track of the last ACT cycle
// Clock cycle when self-refresh was issued
int64_t sref_cycle;
+ // Latest Self-Refresh clock cycle used to calculate the energy of the previous window
+ int64_t sref_cycle_window;
+
// Clock cycle when the latest power-down was issued
int64_t pdn_cycle;
// Memory State
unsigned mem_state;
- unsigned num_active_banks;
+
+ int64_t num_banks;
// Clock cycle of first activate command when memory state changes to ACT
int64_t first_act_cycle;
+ std::vector<int64_t> first_act_cycle_banks;
// Clock cycle of last precharge command when memory state changes to PRE
int64_t last_pre_cycle;
// To perform timing analysis of a given set of commands and update command counters
- void evaluate(const MemorySpecification& memSpec,
- std::vector<MemCommand>& cmd_list);
+ void evaluateCommands(std::vector<MemCommand>& cmd_list);
+
+ // Handlers for commands that are getting processed
+ void handleAct( unsigned bank, int64_t timestamp);
+ void handleRd( unsigned bank, int64_t timestamp);
+ void handleWr( unsigned bank, int64_t timestamp);
+ void handleRef( unsigned bank, int64_t timestamp);
+ void handleRefB(unsigned bank, int64_t timestamp);
+ void handlePre( unsigned bank, int64_t timestamp);
+ void handlePreA( unsigned bank, int64_t timestamp);
+ void handlePdnFAct(unsigned bank, int64_t timestamp);
+ void handlePdnSAct(unsigned bank, int64_t timestamp);
+ void handlePdnFPre(unsigned bank, int64_t timestamp);
+ void handlePdnSPre(unsigned bank, int64_t timestamp);
+ void handlePupAct( int64_t timestamp);
+ void handlePupPre( int64_t timestamp);
+ void handleSREn( unsigned bank, int64_t timestamp);
+ void handleSREx( unsigned bank, int64_t timestamp);
+ void handleNopEnd( int64_t timestamp);
// To calculate time of completion of any issued command
- int64_t timeToCompletion(const MemorySpecification& memSpec,
- MemCommand::cmds type);
+ int64_t timeToCompletion(MemCommand::cmds type);
// To update idle period information whenever active cycles may be idle
- void idle_act_update(const MemorySpecification& memSpec,
- int64_t latest_read_cycle,
+ void idle_act_update(int64_t latest_read_cycle,
int64_t latest_write_cycle,
int64_t latest_act_cycle,
int64_t timestamp);
// To update idle period information whenever precharged cycles may be idle
- void idle_pre_update(const MemorySpecification& memSpec,
- int64_t timestamp,
+ void idle_pre_update(int64_t timestamp,
int64_t latest_pre_cycle);
- void printWarningIfActive(const std::string& warning, int type, int64_t timestamp, int bank);
- void printWarningIfNotActive(const std::string& warning, int type, int64_t timestamp, int bank);
- void printWarningIfPoweredDown(const std::string& warning, int type, int64_t timestamp, int bank);
- void printWarning(const std::string& warning, int type, int64_t timestamp, int bank);
+ // Returns the number of active banks according to the bank_state vector.
+ unsigned get_num_active_banks(void);
+ unsigned nActiveBanks(void);
+
+ bool isPrecharged(unsigned bank);
+
+ void printWarningIfActive(const std::string& warning, int type, int64_t timestamp, unsigned bank);
+ void printWarningIfNotActive(const std::string& warning, int type, int64_t timestamp, unsigned bank);
+ void printWarningIfPoweredDown(const std::string& warning, int type, int64_t timestamp, unsigned bank);
+ void printWarning(const std::string& warning, int type, int64_t timestamp, unsigned bank);
};
}
#endif // ifndef COMMAND_TIMINGS_H
--- /dev/null
+/*
+ * Copyright (c) 2012-2014, TU Delft
+ * Copyright (c) 2012-2014, TU Eindhoven
+ * Copyright (c) 2012-2016, TU Kaiserslautern
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Subash Kannoth, Matthias Jung, Éder F. Zulian
+ *
+ */
+
+#include "MemBankWiseParams.h"
+
+using namespace Data;
+/**
+ * Sets the default bankwise configurations.
+ */
+MemBankWiseParams::MemBankWiseParams():
+ bwPowerFactRho(100),
+ bwPowerFactSigma(100),
+ bwMode(false),
+ flgPASR(false)
+{
+}
+/**
+ * Sets all the bankwise parameters required in bankwise mode
+ */
+MemBankWiseParams::MemBankWiseParams(int64_t factRho, int64_t factSigma,
+ bool hasPASR, int64_t pasrMode,
+ bool opMode, unsigned nbrofBanks)
+{
+
+ bwPowerFactRho = factRho;
+ bwPowerFactSigma = factSigma;
+ bwMode = opMode;
+ flgPASR = hasPASR;
+ ///////////////////////////////////////////////////////////
+ // Activate banks for self refresh based on the PASR mode
+ // ACTIVE - X
+ // NOT ACTIVE - 0
+ ///////////////////////////////////////////////////////////
+ switch(pasrMode){
+
+ case(PASR_0):{
+ // PASR MODE 0
+ // FULL ARRAY
+ // |X X X X |
+ // |X X X X |
+ activeBanks.resize(nbrofBanks);
+ std::iota(activeBanks.begin(), activeBanks.end(), 0);
+ break;
+ }
+ case(PASR_1):{
+ // PASR MODE 1
+ // (1/2) ARRAY
+ // |X X X X |
+ // |0 0 0 0 |
+ activeBanks.resize(nbrofBanks - 4);
+ std::iota(activeBanks.begin(), activeBanks.end(), 0);
+ break;
+ }
+ case(PASR_2):{
+ // PASR MODE 2
+ // (1/4) ARRAY
+ // |X X 0 0 |
+ // |0 0 0 0 |
+ activeBanks.resize(nbrofBanks - 6);
+ std::iota(activeBanks.begin(), activeBanks.end(), 0);
+ break;
+ }
+ case(PASR_3):{
+ // PASR MODE 3
+ // (1/8) ARRAY
+ // |X 0 0 0 |
+ // |0 0 0 0 |
+ activeBanks.resize(nbrofBanks - 7);
+ std::iota(activeBanks.begin(), activeBanks.end(), 0);
+ break;
+ }
+ case(PASR_4):{
+ // PASR MODE 4
+ // (3/4) ARRAY
+ // |0 0 X X |
+ // |X X X X |
+ activeBanks.resize(nbrofBanks - 2);
+ std::iota(activeBanks.begin(), activeBanks.end(), 2);
+ break;
+ }
+ case(PASR_5):{
+ // PASR MODE 5
+ // (1/2) ARRAY
+ // |0 0 0 0 |
+ // |X X X X |
+ activeBanks.resize(nbrofBanks - 4);
+ std::iota(activeBanks.begin(), activeBanks.end(), 4);
+ break;
+ }
+ case(PASR_6):{
+ // PASR MODE 6
+ // (1/4) ARRAY
+ // |0 0 0 0 |
+ // |0 0 X X |
+ activeBanks.resize(nbrofBanks - 6);
+ std::iota(activeBanks.begin(), activeBanks.end(), 6);
+ break;
+ }
+ case(PASR_7):{
+ // PASR MODE 7
+ // (1/8) ARRAY
+ // |0 0 0 0 |
+ // |0 0 0 X |
+ activeBanks.resize(nbrofBanks - 7);
+ std::iota(activeBanks.begin(), activeBanks.end(), 7);
+ break;
+ }
+ default:{
+ // PASR MODE 0
+ // FULL ARRAY
+ // |X X X X |
+ // |X X X X |
+ activeBanks.resize(nbrofBanks);
+ std::iota(activeBanks.begin(), activeBanks.end(), 0);
+ break;
+ }
+ }
+}
+
+/**
+ * Returns true if the given bank is active under the current PASR mode.
+ */
+bool MemBankWiseParams::isBankActiveInPasr(const unsigned bankIdx) const
+{
+ return (std::find(activeBanks.begin(), activeBanks.end(), bankIdx)
+ != activeBanks.end());
+}
--- /dev/null
+/*
+ * Copyright (c) 2012-2014, TU Delft
+ * Copyright (c) 2012-2014, TU Eindhoven
+ * Copyright (c) 2012-2016, TU Kaiserslautern
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Subash Kannoth, Matthias Jung, Eder Zulian
+ *
+ */
+#ifndef MEMBANKWISEPARAMS_H
+#define MEMBANKWISEPARAMS_H
+
+#include <stdint.h>
+#include <vector>
+#include <algorithm>
+#include <numeric>
+
+namespace Data {
+ class MemBankWiseParams {
+ public:
+ // Set of possible PASR modes
+ enum pasrModes{
+ PASR_0,
+ PASR_1,
+ PASR_2,
+ PASR_3,
+ PASR_4,
+ PASR_5,
+ PASR_6,
+ PASR_7
+ };
+ // List of active banks under the specified PASR mode
+ std::vector<unsigned> activeBanks;
+ // ACT Standby power factor
+ int64_t bwPowerFactRho;
+ // Self-Refresh power factor( true : Bankwise mode)
+ int64_t bwPowerFactSigma;
+ // Bankwise or Normal mode
+ bool bwMode;
+ // Wherther PASR is enabled ( true : enabled )
+ bool flgPASR;
+ //Default constructor
+ MemBankWiseParams();
+ MemBankWiseParams(int64_t factRho, int64_t factSigma,
+ bool hasPASR, int64_t pasrMode,
+ bool opMode, unsigned nbrofBanks);
+
+ bool isBankActiveInPasr(const unsigned bankIdx) const;
+ };
+}
+
+#endif // MEMBANKWISEPARAMS_H
* 3. WR - Write
* 4. PRE - Explicit Precharge per bank
* 5. REF - Refresh all banks
- * 6. END - To indicate end of trace
- * 7. RDA - Read with auto-precharge
- * 8. WRA - Write with auto-precharge
- * 9. PREA - Precharge all banks
- * 10. PDN_F_PRE - Precharge Power-down Entry command (Fast-Exit)
- * 11. PDN_S_PRE - Precharge Power-down Entry command (Slow-Exit)
- * 12. PDN_F_ACT - Active Power-down Entry command (Fast-Exit)
- * 13. PDN_S_ACT - Active Power-down Entry command (Slow-Exit)
- * 14. PUP_PRE - Precharge Power-down Exit
- * 15. PUP_ACT - Active Power-down Exit
- * 16. SREN - Self-Refresh Entry command
- * 17. SREX - Self-refresh Exit
- * 18. NOP - To indicate end of trace
+ * 6 REFB- Refresh a particular bank
+ * 7. END - To indicate end of trace
+ * 8. RDA - Read with auto-precharge
+ * 9. WRA - Write with auto-precharge
+ * 10. PREA - Precharge all banks
+ * 11. PDN_F_PRE - Precharge Power-down Entry command (Fast-Exit)
+ * 12. PDN_S_PRE - Precharge Power-down Entry command (Slow-Exit)
+ * 13. PDN_F_ACT - Active Power-down Entry command (Fast-Exit)
+ * 14. PDN_S_ACT - Active Power-down Entry command (Slow-Exit)
+ * 15. PUP_PRE - Precharge Power-down Exit
+ * 16. PUP_ACT - Active Power-down Exit
+ * 17. SREN - Self-Refresh Entry command
+ * 18. SREX - Self-refresh Exit
+ * 19. NOP - To indicate end of trace
*/
enum cmds {
WR = 2,
PRE = 3,
REF = 4,
- END = 5,
- RDA = 6,
- WRA = 7,
- PREA = 8,
- PDN_F_PRE = 9,
- PDN_S_PRE = 10,
- PDN_F_ACT = 11,
- PDN_S_ACT = 12,
- PUP_PRE = 13,
- PUP_ACT = 14,
- SREN = 15,
- SREX = 16,
- NOP = 17,
- UNINITIALIZED = 18
+ REFB = 5,
+ END = 6,
+ RDA = 7,
+ WRA = 8,
+ PREA = 9,
+ PDN_F_PRE = 10,
+ PDN_S_PRE = 11,
+ PDN_F_ACT = 12,
+ PDN_S_ACT = 13,
+ PUP_PRE = 14,
+ PUP_ACT = 15,
+ SREN = 16,
+ SREX = 17,
+ NOP = 18,
+ UNINITIALIZED = 19
};
// MemCommand();
}
}
- static const unsigned int nCommands = 19;
+ static const unsigned int nCommands = 20;
static std::string* getCommandTypeStrings()
{
"WR",
"PRE",
"REF",
+ "REFB",
"END",
"RDA",
"WRA",
idd4w2(0.0),
idd5(0.0),
idd52(0.0),
+ idd5B(0.0),
idd6(0.0),
idd62(0.0),
vdd(0.0),
idd4w2 = getParamValWithDefault("idd4w2", 0.0);
idd5 = getParamValWithDefault("idd5", 0.0);
idd52 = getParamValWithDefault("idd52", 0.0);
+ idd5B = getParamValWithDefault("idd5B", 0.0);
idd6 = getParamValWithDefault("idd6", 0.0);
idd62 = getParamValWithDefault("idd62", 0.0);
vdd = getParamValWithDefault("vdd", 0.0);
double idd4w2;
double idd5;
double idd52;
+ double idd5B;
double idd6;
double idd62;
double vdd;
RL(0),
RP(0),
RFC(0),
+ REFB(0),
RAS(0),
WL(0),
AL(0),
RL = getParamValWithDefault("RL", 0);
RP = getParamValWithDefault("RP", 0);
RFC = getParamValWithDefault("RFC", 0);
+ REFB = getParamValWithDefault("REFB", 0);
RAS = getParamValWithDefault("RAS", 0);
WL = getParamValWithDefault("WL", 0);
AL = getParamValWithDefault("AL", 0);
int64_t RL;
int64_t RP;
int64_t RFC;
+ int64_t REFB;
int64_t RAS;
int64_t WL;
int64_t AL;
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Authors: Karthik Chandrasekar, Matthias Jung, Omar Naji
+ * Authors: Karthik Chandrasekar
+ * Matthias Jung
+ * Omar Naji
+ * Subash Kannoth
+ * Éder F. Zulian
+ * Felipe S. Prado
*
*/
#include <cmath> // For pow
#include <iostream> // fmtflags
-
+#include <algorithm>
using namespace std;
using namespace Data;
+MemoryPowerModel::MemoryPowerModel()
+{
+ total_cycles = 0;
+ energy.total_energy = 0;
+}
+
// Calculate energy and average power consumption for the given command trace
void MemoryPowerModel::power_calc(const MemorySpecification& memSpec,
const CommandAnalysis& c,
- int term)
+ int term,
+ const MemBankWiseParams& bwPowerParams)
{
const MemTimingSpec& t = memSpec.memTimingSpec;
const MemArchitectureSpec& memArchSpec = memSpec.memArchSpec;
const MemPowerSpec& mps = memSpec.memPowerSpec;
+ const int64_t nbrofBanks = memSpec.memArchSpec.nbrOfBanks;
+
+ energy.act_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.pre_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.read_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.write_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.ref_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.refb_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.act_stdby_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.pre_stdby_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.idle_energy_act_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.idle_energy_pre_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.f_act_pd_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.f_pre_pd_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.s_act_pd_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.s_pre_pd_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.ref_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.sref_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.sref_ref_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.sref_ref_act_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.sref_ref_pre_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.spup_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.spup_ref_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.spup_ref_act_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.spup_ref_pre_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.pup_act_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.pup_pre_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
+ energy.total_energy_banks.assign(static_cast<size_t>(nbrofBanks), 0.0);
energy.act_energy = 0.0;
energy.pre_energy = 0.0;
energy.pre_stdby_energy = 0.0;
energy.idle_energy_act = 0.0;
energy.idle_energy_pre = 0.0;
- energy.total_energy = 0.0;
+ energy.window_energy = 0.0;
energy.f_act_pd_energy = 0.0;
energy.f_pre_pd_energy = 0.0;
energy.s_act_pd_energy = 0.0;
double ddrPeriod = t.clkPeriod / static_cast<double>(memArchSpec.dataRate);
// Read IO power is consumed by each DQ (data) and DQS (data strobe) pin
- energy.read_io_energy = calcIoTermEnergy(c.numberofreads * memArchSpec.burstLength,
+ energy.read_io_energy = calcIoTermEnergy(sum(c.numberofreadsBanks) * memArchSpec.burstLength,
ddrPeriod,
power.IO_power,
dqPlusDqsBits);
// Write ODT power is consumed by each DQ (data), DQS (data strobe) and DM
- energy.write_term_energy = calcIoTermEnergy(c.numberofwrites * memArchSpec.burstLength,
+ energy.write_term_energy = calcIoTermEnergy(sum(c.numberofwritesBanks) * memArchSpec.burstLength,
ddrPeriod,
power.WR_ODT_power,
dqPlusDqsPlusMaskBits);
if (memArchSpec.nbrOfRanks > 1) {
// Termination power consumed in the idle rank during reads on the active
// rank by each DQ (data) and DQS (data strobe) pin.
- energy.read_oterm_energy = calcIoTermEnergy(c.numberofreads * memArchSpec.burstLength,
+ energy.read_oterm_energy = calcIoTermEnergy(sum(c.numberofreadsBanks) * memArchSpec.burstLength,
ddrPeriod,
power.TermRD_power,
dqPlusDqsBits);
// Termination power consumed in the idle rank during writes on the active
// rank by each DQ (data), DQS (data strobe) and DM (data mask) pin.
- energy.write_oterm_energy = calcIoTermEnergy(c.numberofwrites * memArchSpec.burstLength,
+ energy.write_oterm_energy = calcIoTermEnergy(sum(c.numberofwritesBanks) * memArchSpec.burstLength,
ddrPeriod,
power.TermWR_power,
dqPlusDqsPlusMaskBits);
+ energy.read_oterm_energy + energy.write_oterm_energy;
}
- total_cycles = c.actcycles + c.precycles +
+ window_cycles = c.actcycles + c.precycles +
c.f_act_pdcycles + c.f_pre_pdcycles +
c.s_act_pdcycles + c.s_pre_pdcycles + c.sref_cycles
+ c.sref_ref_act_cycles + c.sref_ref_pre_cycles +
EnergyDomain vdd0Domain(mps.vdd, t.clkPeriod);
- energy.act_energy = vdd0Domain.calcTivEnergy(c.numberofacts * t.RAS , mps.idd0 - mps.idd3n);
- energy.pre_energy = vdd0Domain.calcTivEnergy(c.numberofpres * (t.RC - t.RAS) , mps.idd0 - mps.idd2n);
- energy.read_energy = vdd0Domain.calcTivEnergy(c.numberofreads * burstCc , mps.idd4r - mps.idd3n);
- energy.write_energy = vdd0Domain.calcTivEnergy(c.numberofwrites * burstCc , mps.idd4w - mps.idd3n);
+ energy.act_energy = vdd0Domain.calcTivEnergy(sum(c.numberofactsBanks) * t.RAS , mps.idd0 - mps.idd3n);
+ energy.pre_energy = vdd0Domain.calcTivEnergy(sum(c.numberofpresBanks) * (t.RC - t.RAS) , mps.idd0 - mps.idd2n);
+ energy.read_energy = vdd0Domain.calcTivEnergy(sum(c.numberofreadsBanks) * burstCc , mps.idd4r - mps.idd3n);
+ energy.write_energy = vdd0Domain.calcTivEnergy(sum(c.numberofwritesBanks) * burstCc , mps.idd4w - mps.idd3n);
energy.ref_energy = vdd0Domain.calcTivEnergy(c.numberofrefs * t.RFC , mps.idd5 - mps.idd3n);
energy.pre_stdby_energy = vdd0Domain.calcTivEnergy(c.precycles, mps.idd2n);
energy.act_stdby_energy = vdd0Domain.calcTivEnergy(c.actcycles, mps.idd3n);
+
+ // Using the number of cycles that at least one bank is active here
+ // But the current iddrho is less than idd3n
+ double iddrho = (static_cast<double>(bwPowerParams.bwPowerFactRho) / 100.0) * (mps.idd3n - mps.idd2n) + mps.idd2n;
+ double esharedActStdby = vdd0Domain.calcTivEnergy(c.actcycles, iddrho);
+ // Fixed componenent for PASR
+ double iddsigma = (static_cast<double>(bwPowerParams.bwPowerFactSigma) / 100.0) * mps.idd6;
+ double esharedPASR = vdd0Domain.calcTivEnergy(c.sref_cycles, iddsigma);
+ // ione is Active background current for a single bank. When a single bank is Active
+ //,all the other remainig (B-1) banks will consume a current of iddrho (based on factor Rho)
+ // So to derrive ione we add (B-1)*iddrho to the idd3n and distribute it to each banks.
+ double ione = (mps.idd3n + (iddrho * (static_cast<double>(nbrofBanks - 1)))) / (static_cast<double>(nbrofBanks));
+ // If memory specification does not provide bank wise refresh current,
+ // approximate it to single bank background current removed from
+ // single bank active current
+ double idd5Blocal = (mps.idd5B == 0.0) ? (mps.idd0 - ione) :(mps.idd5B);
+ // if memory specification does not provide the REFB timing approximate it
+ // to time of ACT + PRE
+ int64_t tRefBlocal = (t.REFB == 0) ? (t.RAS + t.RP) : (t.REFB);
+
+ //Distribution of energy componets to each banks
+ for (unsigned i = 0; i < nbrofBanks; i++) {
+ energy.act_energy_banks[i] = vdd0Domain.calcTivEnergy(c.numberofactsBanks[i] * t.RAS, mps.idd0 - ione);
+ energy.pre_energy_banks[i] = vdd0Domain.calcTivEnergy(c.numberofpresBanks[i] * (t.RP), mps.idd0 - ione);
+ energy.read_energy_banks[i] = vdd0Domain.calcTivEnergy(c.numberofreadsBanks[i] * burstCc, mps.idd4r - mps.idd3n);
+ energy.write_energy_banks[i] = vdd0Domain.calcTivEnergy(c.numberofwritesBanks[i] * burstCc, mps.idd4w - mps.idd3n);
+ energy.ref_energy_banks[i] = vdd0Domain.calcTivEnergy(c.numberofrefs * t.RFC, mps.idd5 - mps.idd3n) / static_cast<double>(nbrofBanks);
+ energy.refb_energy_banks[i] = vdd0Domain.calcTivEnergy(c.numberofrefbBanks[i] * tRefBlocal, idd5Blocal);
+ energy.pre_stdby_energy_banks[i] = vdd0Domain.calcTivEnergy(c.precycles, mps.idd2n) / static_cast<double>(nbrofBanks);
+ energy.act_stdby_energy_banks[i] = vdd0Domain.calcTivEnergy(c.actcyclesBanks[i], (mps.idd3n - iddrho) / static_cast<double>(nbrofBanks))
+ + esharedActStdby / static_cast<double>(nbrofBanks);
+ energy.idle_energy_act_banks[i] = vdd0Domain.calcTivEnergy(c.idlecycles_act, mps.idd3n) / static_cast<double>(nbrofBanks);
+ energy.idle_energy_pre_banks[i] = vdd0Domain.calcTivEnergy(c.idlecycles_pre, mps.idd2n) / static_cast<double>(nbrofBanks);
+ energy.f_act_pd_energy_banks[i] = vdd0Domain.calcTivEnergy(c.f_act_pdcycles, mps.idd3p1) / static_cast<double>(nbrofBanks);
+ energy.f_pre_pd_energy_banks[i] = vdd0Domain.calcTivEnergy(c.f_pre_pdcycles, mps.idd2p1) / static_cast<double>(nbrofBanks);
+ energy.s_act_pd_energy_banks[i] = vdd0Domain.calcTivEnergy(c.s_act_pdcycles, mps.idd3p0) / static_cast<double>(nbrofBanks);
+ energy.s_pre_pd_energy_banks[i] = vdd0Domain.calcTivEnergy(c.s_pre_pdcycles, mps.idd2p0) / static_cast<double>(nbrofBanks);
+
+ energy.sref_energy_banks[i] = engy_sref_banks(mps.idd6, mps.idd3n,
+ mps.idd5, mps.vdd,
+ static_cast<double>(c.sref_cycles), static_cast<double>(c.sref_ref_act_cycles),
+ static_cast<double>(c.sref_ref_pre_cycles), static_cast<double>(c.spup_ref_act_cycles),
+ static_cast<double>(c.spup_ref_pre_cycles), t.clkPeriod,esharedPASR,bwPowerParams,i,nbrofBanks
+ );
+ energy.sref_ref_act_energy_banks[i] = vdd0Domain.calcTivEnergy(c.sref_ref_act_cycles, mps.idd3p0) / static_cast<double>(nbrofBanks);
+ energy.sref_ref_pre_energy_banks[i] = vdd0Domain.calcTivEnergy(c.sref_ref_pre_cycles, mps.idd2p0) / static_cast<double>(nbrofBanks);
+ energy.sref_ref_energy_banks[i] = energy.sref_ref_act_energy_banks[i] + energy.sref_ref_pre_energy_banks[i] ;//
+
+ energy.spup_energy_banks[i] = vdd0Domain.calcTivEnergy(c.spup_cycles, mps.idd2n) / static_cast<double>(nbrofBanks);
+ energy.spup_ref_act_energy_banks[i] = vdd0Domain.calcTivEnergy(c.spup_ref_act_cycles, mps.idd3n) / static_cast<double>(nbrofBanks);//
+ energy.spup_ref_pre_energy_banks[i] = vdd0Domain.calcTivEnergy(c.spup_ref_pre_cycles, mps.idd2n) / static_cast<double>(nbrofBanks);
+ energy.spup_ref_energy_banks[i] = ( energy.spup_ref_act_energy + energy.spup_ref_pre_energy ) / static_cast<double>(nbrofBanks);
+ energy.pup_act_energy_banks[i] = vdd0Domain.calcTivEnergy(c.pup_act_cycles, mps.idd3n) / static_cast<double>(nbrofBanks);
+ energy.pup_pre_energy_banks[i] = vdd0Domain.calcTivEnergy(c.pup_pre_cycles, mps.idd2n) / static_cast<double>(nbrofBanks);
+ }
+
// Idle energy in the active standby clock cycles
energy.idle_energy_act = vdd0Domain.calcTivEnergy(c.idlecycles_act, mps.idd3n);
// Idle energy in the precharge standby clock cycles
if (memArchSpec.twoVoltageDomains) {
EnergyDomain vdd2Domain(mps.vdd2, t.clkPeriod);
- energy.act_energy += vdd2Domain.calcTivEnergy(c.numberofacts * t.RAS , mps.idd02 - mps.idd3n2);
- energy.pre_energy += vdd2Domain.calcTivEnergy(c.numberofpres * (t.RC - t.RAS) , mps.idd02 - mps.idd2n2);
- energy.read_energy += vdd2Domain.calcTivEnergy(c.numberofreads * burstCc , mps.idd4r2 - mps.idd3n2);
- energy.write_energy += vdd2Domain.calcTivEnergy(c.numberofwrites * burstCc , mps.idd4w2 - mps.idd3n2);
+ energy.act_energy += vdd2Domain.calcTivEnergy(sum(c.numberofactsBanks) * t.RAS , mps.idd02 - mps.idd3n2);
+ energy.pre_energy += vdd2Domain.calcTivEnergy(sum(c.numberofpresBanks) * (t.RC - t.RAS) , mps.idd02 - mps.idd2n2);
+ energy.read_energy += vdd2Domain.calcTivEnergy(sum(c.numberofreadsBanks) * burstCc , mps.idd4r2 - mps.idd3n2);
+ energy.write_energy += vdd2Domain.calcTivEnergy(sum(c.numberofwritesBanks) * burstCc , mps.idd4w2 - mps.idd3n2);
energy.ref_energy += vdd2Domain.calcTivEnergy(c.numberofrefs * t.RFC , mps.idd52 - mps.idd3n2);
energy.pre_stdby_energy += vdd2Domain.calcTivEnergy(c.precycles, mps.idd2n2);
energy.act_stdby_energy += vdd2Domain.calcTivEnergy(c.actcycles, mps.idd3n2);
+
// Idle energy in the active standby clock cycles
energy.idle_energy_act += vdd2Domain.calcTivEnergy(c.idlecycles_act, mps.idd3n2);
// Idle energy in the precharge standby clock cycles
// adding all energy components for the active rank and all background and idle
// energy components for both ranks (in a dual-rank system)
- energy.total_energy = energy.act_energy + energy.pre_energy + energy.read_energy +
- energy.write_energy + energy.ref_energy + energy.io_term_energy +
- static_cast<double>(memArchSpec.nbrOfRanks) * (energy.act_stdby_energy +
- energy.pre_stdby_energy + energy.sref_energy +
- energy.f_act_pd_energy + energy.f_pre_pd_energy + energy.s_act_pd_energy
- + energy.s_pre_pd_energy + energy.sref_ref_energy + energy.spup_ref_energy);
+
+ if (bwPowerParams.bwMode) {
+ // Calculate total energy per bank.
+ for (unsigned i = 0; i < nbrofBanks; i++) {
+ energy.total_energy_banks[i] = energy.act_energy_banks[i] + energy.pre_energy_banks[i] + energy.read_energy_banks[i]
+ + energy.ref_energy_banks[i] + energy.write_energy_banks[i] + energy.refb_energy_banks[i]
+ + static_cast<double>(memArchSpec.nbrOfRanks) * energy.act_stdby_energy_banks[i]
+ + energy.pre_stdby_energy_banks[i] + energy.f_pre_pd_energy_banks[i] + energy.s_act_pd_energy_banks[i]
+ + energy.s_pre_pd_energy_banks[i]+ energy.sref_ref_energy_banks[i] + energy.spup_ref_energy_banks[i];
+ }
+ // Calculate total energy for all banks.
+ energy.window_energy = sum(energy.total_energy_banks) + energy.io_term_energy;
+
+ } else {
+ energy.window_energy = energy.act_energy + energy.pre_energy + energy.read_energy + energy.write_energy
+ + energy.ref_energy + energy.io_term_energy + sum(energy.refb_energy_banks)
+ + static_cast<double>(memArchSpec.nbrOfRanks) * (energy.act_stdby_energy
+ + energy.pre_stdby_energy + energy.sref_energy + energy.f_act_pd_energy
+ + energy.f_pre_pd_energy + energy.s_act_pd_energy + energy.s_pre_pd_energy
+ + energy.sref_ref_energy + energy.spup_ref_energy);
+ }
+
+ power.window_average_power = energy.window_energy / (static_cast<double>(window_cycles) * t.clkPeriod);
+
+ total_cycles += window_cycles;
+
+ energy.total_energy += energy.window_energy;
// Calculate the average power consumption
power.average_power = energy.total_energy / (static_cast<double>(total_cycles) * t.clkPeriod);
} // MemoryPowerModel::power_calc
-void MemoryPowerModel::power_print(const MemorySpecification& memSpec, int term, const CommandAnalysis& c) const
+void MemoryPowerModel::power_print(const MemorySpecification& memSpec, int term, const CommandAnalysis& c, bool bankwiseMode) const
{
const MemTimingSpec& memTimingSpec = memSpec.memTimingSpec;
const MemArchitectureSpec& memArchSpec = memSpec.memArchSpec;
const uint64_t nRanks = static_cast<uint64_t>(memArchSpec.nbrOfRanks);
const char eUnit[] = " pJ";
+ const int64_t nbrofBanks = memSpec.memArchSpec.nbrOfBanks;
+ double nRanksDouble = static_cast<double>(nRanks);
ios_base::fmtflags flags = cout.flags();
streamsize precision = cout.precision();
cout.precision(0);
- cout << "* Trace Details:" << fixed << endl
- << endl << "#ACT commands: " << c.numberofacts
- << endl << "#RD + #RDA commands: " << c.numberofreads
- << endl << "#WR + #WRA commands: " << c.numberofwrites
+
+ if (bankwiseMode) {
+ cout << endl << "* Bankwise Details:";
+ for (unsigned i = 0; i < nbrofBanks; i++) {
+ cout << endl << "## @ Bank " << i << fixed
+ << endl << " #ACT commands: " << c.numberofactsBanks[i]
+ << endl << " #RD + #RDA commands: " << c.numberofreadsBanks[i]
+ << endl << " #WR + #WRA commands: " << c.numberofwritesBanks[i]
+ << endl << " #PRE (+ PREA) commands: " << c.numberofpresBanks[i];
+ }
+ cout << endl;
+ }
+
+ cout << endl << "* Trace Details:" << fixed << endl
+ << endl << "#ACT commands: " << sum(c.numberofactsBanks)
+ << endl << "#RD + #RDA commands: " << sum(c.numberofreadsBanks)
+ << endl << "#WR + #WRA commands: " << sum(c.numberofwritesBanks)
/* #PRE commands (precharge all counts a number of #PRE commands equal to the number of active banks) */
- << endl << "#PRE (+ PREA) commands: " << c.numberofpres
+ << endl << "#PRE (+ PREA) commands: " << sum(c.numberofpresBanks)
<< endl << "#REF commands: " << c.numberofrefs
+ << endl << "#REFB commands: " << sum(c.numberofrefbBanks)
<< endl << "#Active Cycles: " << c.actcycles
<< endl << " #Active Idle Cycles: " << c.idlecycles_act
<< endl << " #Active Power-Up Cycles: " << c.pup_act_cycles
<< endl << "Total Trace Length (clock cycles): " << total_cycles
<< endl << "----------------------------------------" << endl;
+ if (bankwiseMode) {
+ cout << endl << "* Bankwise Details:";
+ for (unsigned i = 0; i < nbrofBanks; i++) {
+ cout << endl << "## @ Bank " << i << fixed
+ << endl << " ACT Cmd Energy: " << energy.act_energy_banks[i] << eUnit
+ << endl << " PRE Cmd Energy: " << energy.pre_energy_banks[i] << eUnit
+ << endl << " RD Cmd Energy: " << energy.read_energy_banks[i] << eUnit
+ << endl << " WR Cmd Energy: " << energy.write_energy_banks[i] << eUnit
+ << endl << " Auto-Refresh Energy: " << energy.ref_energy_banks[i] << eUnit
+ << endl << " Bankwise-Refresh Energy: " << energy.refb_energy_banks[i] << eUnit
+ << endl << " ACT Stdby Energy: " << nRanksDouble * energy.act_stdby_energy_banks[i] << eUnit
+ << endl << " PRE Stdby Energy: " << nRanksDouble * energy.pre_stdby_energy_banks[i] << eUnit
+ << endl << " Active Idle Energy: "<< nRanksDouble * energy.idle_energy_act_banks[i] << eUnit
+ << endl << " Precharge Idle Energy: "<< nRanksDouble * energy.idle_energy_pre_banks[i] << eUnit
+ << endl << " Fast-Exit Active Power-Down Energy: "<< nRanksDouble * energy.f_act_pd_energy_banks[i] << eUnit
+ << endl << " Fast-Exit Precharged Power-Down Energy: "<< nRanksDouble * energy.f_pre_pd_energy_banks[i] << eUnit
+ << endl << " Slow-Exit Active Power-Down Energy: "<< nRanksDouble * energy.s_act_pd_energy_banks[i] << eUnit
+ << endl << " Slow-Exit Precharged Power-Down Energy: "<< nRanksDouble * energy.s_pre_pd_energy_banks[i] << eUnit
+ << endl << " Self-Refresh Energy: "<< nRanksDouble * energy.sref_energy_banks[i] << eUnit
+ << endl << " Slow-Exit Active Power-Down Energy during Auto-Refresh cycles in Self-Refresh: "<< nRanksDouble * energy.sref_ref_act_energy_banks[i] << eUnit
+ << endl << " Slow-Exit Precharged Power-Down Energy during Auto-Refresh cycles in Self-Refresh: " << nRanksDouble * energy.sref_ref_pre_energy_banks[i] << eUnit
+ << endl << " Self-Refresh Power-Up Energy: "<< nRanksDouble * energy.spup_energy_banks[i] << eUnit
+ << endl << " Active Stdby Energy during Auto-Refresh cycles in Self-Refresh Power-Up: "<< nRanksDouble * energy.spup_ref_act_energy_banks[i] << eUnit
+ << endl << " Precharge Stdby Energy during Auto-Refresh cycles in Self-Refresh Power-Up: "<< nRanksDouble * energy.spup_ref_pre_energy_banks[i] << eUnit
+ << endl << " Active Power-Up Energy: "<< nRanksDouble * energy.pup_act_energy_banks[i] << eUnit
+ << endl << " Precharged Power-Up Energy: "<< nRanksDouble * energy.pup_pre_energy_banks[i] << eUnit
+ << endl << " Total Energy: "<< energy.total_energy_banks[i] << eUnit
+ << endl;
+ }
+ cout << endl;
+ }
+
cout.precision(2);
cout << endl << "* Trace Power and Energy Estimates:" << endl
<< endl << "ACT Cmd Energy: " << energy.act_energy << eUnit
<< endl << "WR Cmd Energy: " << energy.write_energy << eUnit;
if (term) {
- cout << "RD I/O Energy: " << energy.read_io_energy << eUnit << endl;
+ cout << endl << "RD I/O Energy: " << energy.read_io_energy << eUnit << endl;
// No Termination for LPDDR/2/3 and DDR memories
if (memSpec.memArchSpec.termination) {
cout << "WR Termination Energy: " << energy.write_term_energy << eUnit << endl;
}
}
- double nRanksDouble = static_cast<double>(nRanks);
-
cout << "ACT Stdby Energy: " << nRanksDouble * energy.act_stdby_energy << eUnit
<< endl << " Active Idle Energy: " << nRanksDouble * energy.idle_energy_act << eUnit
<< endl << " Active Power-Up Energy: " << nRanksDouble * energy.pup_act_energy << eUnit
<< endl << " Slow-Exit Precharged Power-Down Energy: " << nRanksDouble * energy.s_pre_pd_energy << eUnit
<< endl << " Slow-Exit Precharged Power-Down Energy during Auto-Refresh cycles in Self-Refresh: " << nRanksDouble * energy.sref_ref_pre_energy << eUnit
<< endl << "Auto-Refresh Energy: " << energy.ref_energy << eUnit
+ << endl << "Bankwise-Refresh Energy: " << sum(energy.refb_energy_banks) << eUnit
<< endl << "Self-Refresh Energy: " << nRanksDouble * energy.sref_energy << eUnit
<< endl << "----------------------------------------"
<< endl << "Total Trace Energy: " << energy.total_energy << eUnit
return sref_energy;
}
+// Self-refresh active energy estimation per banks
+double MemoryPowerModel::engy_sref_banks(double idd6, double idd3n, double idd5,
+ double vdd, double sref_cycles, double sref_ref_act_cycles,
+ double sref_ref_pre_cycles, double spup_ref_act_cycles,
+ double spup_ref_pre_cycles, double clk,
+ double esharedPASR, const MemBankWiseParams& bwPowerParams,
+ unsigned bnkIdx, int64_t nbrofBanks)
+{
+ // Bankwise Self-refresh energy
+ double sref_energy_banks;
+ // Dynamic componenents for PASR energy varying based on PASR mode
+ double iddsigmaDynBanks;
+ double pasr_energy_dyn;
+ // This component is distributed among all banks
+ double sref_energy_shared;
+ //Is PASR Active
+ if (bwPowerParams.flgPASR){
+ sref_energy_shared = (((idd5 - idd3n) * (sref_ref_act_cycles
+ + spup_ref_act_cycles + sref_ref_pre_cycles + spup_ref_pre_cycles)) * vdd * clk)
+ / static_cast<double>(nbrofBanks);
+ //if the bank is active under current PASR mode
+ if (bwPowerParams.isBankActiveInPasr(bnkIdx)){
+ // Distribute the sref energy to the active banks
+ iddsigmaDynBanks = (static_cast<double>(100 - bwPowerParams.bwPowerFactSigma) / (100.0 * static_cast<double>(nbrofBanks))) * idd6;
+ pasr_energy_dyn = vdd * iddsigmaDynBanks * sref_cycles;
+ // Add the static components
+ sref_energy_banks = sref_energy_shared + pasr_energy_dyn + (esharedPASR /static_cast<double>(nbrofBanks));
+
+ }else{
+ sref_energy_banks = (esharedPASR /static_cast<double>(nbrofBanks));
+ }
+ }
+ //When PASR is not active total all the banks are in Self-Refresh. Thus total Self-Refresh energy is distributed across all banks
+ else{
+
+
+ sref_energy_banks = (((idd6 * sref_cycles) + ((idd5 - idd3n) * (sref_ref_act_cycles
+ + spup_ref_act_cycles + sref_ref_pre_cycles + spup_ref_pre_cycles)))
+ * vdd * clk)
+ / static_cast<double>(nbrofBanks);
+ }
+ return sref_energy_banks;
+}
+
+
// IO and Termination power calculation based on Micron Power Calculators
// Absolute power measures are obtained from Micron Power Calculator (mentioned in mW)
void MemoryPowerModel::io_term_power(const MemorySpecification& memSpec)
{
return static_cast<double>(cycles) * clkPeriod * current * voltage;
}
+
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Authors: Karthik Chandrasekar, Matthias Jung, Omar Naji
+ * Authors: Karthik Chandrasekar
+ * Matthias Jung
+ * Omar Naji
+ * Subash Kannoth
+ * Éder F. Zulian
+ * Felipe S. Prado
*
*/
#ifndef MEMORY_POWER_MODEL_H
#define MEMORY_POWER_MODEL_H
+#include <numeric>
#include "MemorySpecification.h"
+#include "MemBankWiseParams.h"
#include "CommandAnalysis.h"
namespace Data {
class MemoryPowerModel {
public:
+
+ MemoryPowerModel();
+
// Calculate energy and average power consumption for the given memory
// command trace
void power_calc(const MemorySpecification& memSpec,
const CommandAnalysis& c,
- int term);
+ int term,
+ const MemBankWiseParams& bwPowerParams);
// Used to calculate self-refresh active energy
static double engy_sref(double idd6,
double idd3n,
double idd5,
double vdd,
- double sref_cycles,
+ double sref_cycles_idd6,
double sref_ref_act_cycles,
double sref_ref_pre_cycles,
double spup_ref_act_cycles,
double spup_ref_pre_cycles,
double clk);
+ static double engy_sref_banks(double idd6,
+ double idd3n,
+ double idd5,
+ double vdd,
+ double sref_cycles,
+ double sref_ref_act_cycles,
+ double sref_ref_pre_cycles,
+ double spup_ref_act_cycles,
+ double spup_ref_pre_cycles,
+ double clk,
+ double esharedPASR,
+ const MemBankWiseParams& bwPowerParams,
+ unsigned bnkIdx,
+ int64_t nbrofBanks);
int64_t total_cycles;
+ int64_t window_cycles;
+
struct Energy {
// Total energy of all activates
double act_energy;
+ std::vector<double> act_energy_banks;
// Total energy of all precharges
double pre_energy;
+ std::vector<double> pre_energy_banks;
// Total energy of all reads
double read_energy;
+ std::vector<double> read_energy_banks;
// Total energy of all writes
double write_energy;
+ std::vector<double> write_energy_banks;
// Total energy of all refreshes
double ref_energy;
+ std::vector<double> ref_energy_banks;
+
+ // Bankwise refresh energy
+ std::vector<double> refb_energy_banks;
// Total background energy of all active standby cycles
double act_stdby_energy;
+ std::vector<double> act_stdby_energy_banks;
// Total background energy of all precharge standby cycles
double pre_stdby_energy;
+ std::vector<double> pre_stdby_energy_banks;
// Total energy of idle cycles in the active mode
double idle_energy_act;
+ std::vector<double> idle_energy_act_banks;
// Total energy of idle cycles in the precharge mode
double idle_energy_pre;
+ std::vector<double> idle_energy_pre_banks;
// Total trace/pattern energy
double total_energy;
+ std::vector<double> total_energy_banks;
+
+ // Window energy
+ double window_energy;
// Average Power
double average_power;
// Energy consumed in active/precharged fast/slow-exit modes
double f_act_pd_energy;
+ std::vector<double> f_act_pd_energy_banks;
+
double f_pre_pd_energy;
+ std::vector<double> f_pre_pd_energy_banks;
+
double s_act_pd_energy;
+ std::vector<double> s_act_pd_energy_banks;
+
double s_pre_pd_energy;
+ std::vector<double> s_pre_pd_energy_banks;
// Energy consumed in self-refresh mode
double sref_energy;
+ std::vector<double> sref_energy_banks;
// Energy consumed in auto-refresh during self-refresh mode
double sref_ref_energy;
+ std::vector<double> sref_ref_energy_banks;
+
double sref_ref_act_energy;
+ std::vector<double> sref_ref_act_energy_banks;
+
double sref_ref_pre_energy;
+ std::vector<double> sref_ref_pre_energy_banks;
// Energy consumed in powering-up from self-refresh mode
double spup_energy;
+ std::vector<double> spup_energy_banks;
// Energy consumed in auto-refresh during self-refresh power-up
double spup_ref_energy;
+ std::vector<double> spup_ref_energy_banks;
+
double spup_ref_act_energy;
+ std::vector<double> spup_ref_act_energy_banks;
+
double spup_ref_pre_energy;
+ std::vector<double> spup_ref_pre_energy_banks;
// Energy consumed in powering-up from active/precharged power-down modes
double pup_act_energy;
+ std::vector<double> pup_act_energy_banks;
+
double pup_pre_energy;
+ std::vector<double> pup_pre_energy_banks;
// Energy consumed by IO and Termination
double read_io_energy; // Read IO Energy
// Average Power
double average_power;
+
+ // Window Average Power
+ double window_average_power;
};
// Print the power and energy
void power_print(const MemorySpecification& memSpec,
int term,
- const CommandAnalysis& c) const;
+ const CommandAnalysis& c,
+ bool bankwiseMode) const;
// To derive IO and Termination Power measures using DRAM specification
void io_term_power(const MemorySpecification& memSpec);
private:
double calcIoTermEnergy(int64_t cycles, double period, double power, int64_t numBits) const;
+ // Sum quantities (e.g., operations, energy, cycles) that are stored in a per bank basis returning the total amount.
+ template <typename T> T sum(const std::vector<T> vec) const { return std::accumulate(vec.begin(), vec.end(), static_cast<T>(0)); }
};
class EnergyDomain {
{}
double calcTivEnergy(int64_t cycles, double current) const;
+ double getVoltage() const{ return voltage; };
private:
const double voltage;
const double clkPeriod;
using namespace Data;
using namespace std;
-TraceParser::TraceParser(int64_t nbrOfBanks) :
- counters(nbrOfBanks)
+TraceParser::TraceParser(const MemorySpecification& memSpec) :
+ counters(memSpec)
{
}
{
ifstream pwr_trace;
- counters = CommandAnalysis(memSpec.memArchSpec.nbrOfBanks);
+ counters = CommandAnalysis(memSpec);
int nCommands = 0;
bool lastupdate = false;
if (trans) {
cmd_list.push_back(cmdline);
nCommands++;
if (nCommands == window) {
- counters.getCommands(memSpec, cmd_list, lastupdate);
+ counters.getCommands(cmd_list, lastupdate);
nCommands = 0;
cmd_list.clear();
}
}
lastupdate = true;
- counters.getCommands(memSpec, cmd_list, lastupdate);
+ counters.getCommands(cmd_list, lastupdate);
cmd_list.clear();
pwr_trace.close();
} else {
cmd_list.push_back(cmdline);
nCommands++;
if (nCommands == window) {
- counters.getCommands(memSpec, cmd_list, lastupdate);
+ counters.getCommands(cmd_list, lastupdate);
nCommands = 0;
cmd_list.clear();
}
}
lastupdate = true;
- counters.getCommands(memSpec, cmd_list, lastupdate);
+ counters.getCommands(cmd_list, lastupdate);
cmd_list.clear();
}
counters.clear();
class TraceParser {
public:
- TraceParser(int64_t nbrOfBanks);
+ TraceParser(const Data::MemorySpecification& memSpec);
// list of parsed commands
std::vector<Data::MemCommand> cmd_list;
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Authors: Matthias Jung, Omar Naji
+ * Authors: Matthias Jung
+ * Omar Naji
+ * Subash Kannoth
+ * Éder F. Zulian
+ * Felipe S. Prado
*
*/
libDRAMPower::libDRAMPower(const MemorySpecification& memSpec, bool includeIoAndTermination) :
memSpec(memSpec),
- counters(CommandAnalysis(memSpec.memArchSpec.nbrOfBanks)),
- includeIoAndTermination(includeIoAndTermination)
+ counters(memSpec),
+ includeIoAndTermination(includeIoAndTermination),
+ mpm(MemoryPowerModel())
+{
+ MemBankWiseParams p (100,100,false,0,false,static_cast<unsigned>(memSpec.memArchSpec.nbrOfBanks));
+ libDRAMPower DRAMPower = libDRAMPower(memSpec, 0, p);
+}
+
+libDRAMPower::libDRAMPower(const MemorySpecification& memSpec, bool includeIoAndTermination, const Data::MemBankWiseParams& bwPowerParams) :
+ memSpec(memSpec),
+ counters(CommandAnalysis(memSpec)),
+ includeIoAndTermination(includeIoAndTermination),
+ bwPowerParams(bwPowerParams)
{
}
cmdList.push_back(cmd);
}
-void libDRAMPower::updateCounters(bool lastUpdate)
+void libDRAMPower::updateCounters(bool lastUpdate, int64_t timestamp)
{
- counters.getCommands(memSpec, cmdList, lastUpdate);
+ counters.getCommands(cmdList, lastUpdate, timestamp);
cmdList.clear();
}
void libDRAMPower::calcEnergy()
{
- mpm.power_calc(memSpec, counters, includeIoAndTermination);
+ updateCounters(true);
+ mpm.power_calc(memSpec, counters, includeIoAndTermination, bwPowerParams);
}
+void libDRAMPower::calcWindowEnergy(int64_t timestamp)
+{
+ doCommand(MemCommand::NOP, 0, timestamp);
+ updateCounters(false, timestamp);
+ mpm.power_calc(memSpec, counters, includeIoAndTermination, bwPowerParams);
+ clearCounters(timestamp);
+}
+
+
void libDRAMPower::clearState()
{
counters.clear();
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Authors: Matthias Jung, Omar Naji
+ * Authors: Matthias Jung
+ * Omar Naji
+ * Subash Kannoth
+ * Éder F. Zulian
+ * Felipe S. Prado
*
*/
#include "CommandAnalysis.h"
#include "MemoryPowerModel.h"
#include "MemCommand.h"
+#include "MemBankWiseParams.h"
+
class libDRAMPower {
public:
libDRAMPower(const Data::MemorySpecification& memSpec, bool includeIoAndTermination);
+ libDRAMPower(const Data::MemorySpecification& memSpec, bool includeIoAndTermination,const Data::MemBankWiseParams& bwPowerParams);
~libDRAMPower();
void doCommand(Data::MemCommand::cmds type,
int bank,
int64_t timestamp);
- void updateCounters(bool lastUpdate);
-
- void clearCounters(int64_t timestamp);
-
- void clearState();
-
void calcEnergy();
+ void calcWindowEnergy(int64_t timestamp);
+
const Data::MemoryPowerModel::Energy& getEnergy() const;
const Data::MemoryPowerModel::Power& getPower() const;
// list of all commands
std::vector<Data::MemCommand> cmdList;
private:
+ void updateCounters(bool lastUpdate, int64_t timestamp = 0);
+
+ void clearCounters(int64_t timestamp);
+
+ void clearState();
+
Data::MemorySpecification memSpec;
public:
Data::CommandAnalysis counters;
private:
bool includeIoAndTermination;
+ bool bankwiseMode;
+ Data:: MemBankWiseParams bwPowerParams;
// Object of MemoryPowerModel which contains the results
// Energies(pJ) stored in energy, Powers(mW) stored in power. Number of
// each command stored in timings.
-Wcast-align -Wconversion -Wall -Werror
# Sum up the flags.
-CXXFLAGS := -O ${WARNFLAGS} ${DBGCXXFLAGS} ${OPTCXXFLAGS} -std=c++98
+CXXFLAGS := -O ${WARNFLAGS} ${DBGCXXFLAGS} ${OPTCXXFLAGS} -std=c++0x
DRAMPOWER_PATH ?= ../..
MYPATH := ${DRAMPOWER_PATH}/test/libdrampowertest
# Name of the generated binary.
BINARY := ${MYPATH}/library_test
+BINARY2 := ${MYPATH}/window_example
ifeq ($(USE_XERCES),1)
LIBS := -lxerces-c -ldrampowerxml -ldrampower
all:
g++ ${MYPATH}/lib_test.cc ${CXXFLAGS} -iquote ${DRAMPOWER_PATH}/src -DUSE_XERCES=${USE_XERCES} -L${DRAMPOWER_PATH}/src/ ${LIBS} -o $(BINARY)
+ g++ ${MYPATH}/window_example.cc ${CXXFLAGS} -iquote ${DRAMPOWER_PATH}/src -DUSE_XERCES=${USE_XERCES} -L${DRAMPOWER_PATH}/src/ ${LIBS} -o $(BINARY2)
clean:
rm -f $(BINARY)
+ rm -f $(BINARY2)
coverageclean:
$(RM) lib_test.gcno lib_test.gcda
test: all
- ./$(BINARY) ${DRAMPOWER_PATH}/memspecs/MICRON_1Gb_DDR2-1066_16bit_H.xml
+ ./$(BINARY) ${DRAMPOWER_PATH}/memspecs/MICRON_1Gb_DDR2-1066_16bit_H.xml
+ ./$(BINARY2) ${DRAMPOWER_PATH}/memspecs/MICRON_1Gb_DDR2-1066_16bit_H.xml
.PHONY: clean test
210,RDA,0
232,ACT,4
247,WRA,4
-248,PDN_F_ACT,3
+265,PDN_F_PRE,3
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
- * Authors: Matthias Jung, Omar Naji
+ * Authors: Matthias Jung, Omar Naji, Felipe S. Prado
*
*/
+#include <iostream>
#include <string>
#include "libdrampower/LibDRAMPower.h"
#if USE_XERCES
- #include "xmlparser/MemSpecParser.h"
+#include "xmlparser/MemSpecParser.h"
#endif
using namespace std;
int main(int argc, char* argv[])
{
- assert(argc == 2);
- //Setup of DRAMPower for your simulation
- string filename;
- //type path to memspec file
- filename = argv[1];
- //Parsing the Memspec specification of found in memspec folder
- #if USE_XERCES
- MemorySpecification memSpec(MemSpecParser::getMemSpecFromXML(filename));
- #else
- MemorySpecification memSpec;
- #endif
- libDRAMPower test = libDRAMPower(memSpec, 0);
- // During the simulation you can report activity
- // to DRAMPower with the doCommand(...) function:
- test.doCommand(MemCommand::ACT,0,35);
- test.doCommand(MemCommand::RDA,0,50);
- test.doCommand(MemCommand::ACT,4,51);
- test.doCommand(MemCommand::RDA,4,66);
- test.doCommand(MemCommand::ACT,0,86);
- test.doCommand(MemCommand::RDA,0,101);
- test.doCommand(MemCommand::ACT,2,102);
- //This functionality is still not implemented.
- test.updateCounters(false);
- test.doCommand(MemCommand::RDA,2,117);
- test.doCommand(MemCommand::ACT,5,119);
- test.doCommand(MemCommand::RDA,5,134);
- test.doCommand(MemCommand::ACT,0,137);
- test.doCommand(MemCommand::RDA,0,152);
- test.doCommand(MemCommand::ACT,3,159);
- test.doCommand(MemCommand::RDA,3,174);
- test.doCommand(MemCommand::ACT,0,195);
- test.doCommand(MemCommand::RDA,0,210);
- test.doCommand(MemCommand::ACT,4,232);
- test.doCommand(MemCommand::WRA,4,247);
- // Need at least tWRAPDEN = AL + CWL + BL/2 + WR + 1 cycles between WR and PDN_F_PRE
- test.doCommand(MemCommand::PDN_F_PRE,3,265);
+ assert(argc == 2);
+ //Setup of DRAMPower for your simulation
+ string filename;
+ //type path to memspec file
+ filename = argv[1];
+ //Parsing the Memspec specification of found in memspec folder
+#if USE_XERCES
+ MemorySpecification memSpec(MemSpecParser::getMemSpecFromXML(filename));
+#else
+ MemorySpecification memSpec;
+#endif
+ libDRAMPower test = libDRAMPower(memSpec, 0);
+
+ ios_base::fmtflags flags = cout.flags();
+ streamsize precision = cout.precision();
+ cout.precision(2);
+ cout << fixed << endl;
+
+ // During the simulation you can report activity
+ // to DRAMPower with the doCommand(...) function:
+ test.doCommand(MemCommand::ACT,0,35);
+ test.doCommand(MemCommand::RDA,0,50);
+ test.doCommand(MemCommand::ACT,4,51);
+ test.doCommand(MemCommand::RDA,4,66);
+ test.doCommand(MemCommand::ACT,0,86);
+ test.doCommand(MemCommand::RDA,0,101);
+ test.doCommand(MemCommand::ACT,2,102);
+ test.doCommand(MemCommand::RDA,2,117);
+ test.doCommand(MemCommand::ACT,5,119);
+ test.doCommand(MemCommand::RDA,5,134);
+ test.doCommand(MemCommand::ACT,0,137);
+ test.doCommand(MemCommand::RDA,0,152);
+ test.doCommand(MemCommand::ACT,3,159);
+ test.doCommand(MemCommand::RDA,3,174);
+ test.doCommand(MemCommand::ACT,0,195);
+ test.doCommand(MemCommand::RDA,0,210);
+ test.doCommand(MemCommand::ACT,4,232);
+ test.doCommand(MemCommand::WRA,4,247);
+ // Need at least tWRAPDEN = AL + CWL + BL/2 + WR + 1 cycles between WR and PDN_F_PRE
+ test.doCommand(MemCommand::PDN_F_PRE,3,265);
+ // Exit from Precharge Power-down
+ test.doCommand(MemCommand::PUP_PRE,3,300);
+ // Activate bank 0
+ test.doCommand(MemCommand::ACT,0,350);
+ // Precharge all banks with bank 0 active
+ test.doCommand(MemCommand::PREA,0,400);
+ // Precharge all banks again
+ // XXX: For testing purpose only! Double precharge all should never
+ // happen. Warnings are generated.
+ test.doCommand(MemCommand::PREA,0,450);
+ // Activate bank 0 twice
+ // XXX: For testing purpose only! Double activate should never happen.
+ // Warnings are generated.
+ test.doCommand(MemCommand::ACT,0,500);
+ test.doCommand(MemCommand::ACT,0,550);
+ // Precharge bank 0 twice
+ // XXX: For testing purpose only! Double precharge for the same bank
+ // should never happen. Warnings are generated.
+ test.doCommand(MemCommand::PRE,0,600);
+ test.doCommand(MemCommand::PRE,0,650);
- //set bool to true when this is the last update of the counters
- test.updateCounters(true);
+ // At the end of your simulation call the getEnergy(...)
+ // function to print the power report
+ test.calcEnergy();
- // At the end of your simulation call the getEnergy(...)
- // function to print the power report
- test.calcEnergy();
+ // Accesing the results:
- // Accesing the results:
+ // Number of issued Commands
+ std::cout << "Number of ACTs: " << std::accumulate(test.counters.numberofactsBanks.begin(),
+ test.counters.numberofactsBanks.end()
+ ,0)<< endl;
+ std::cout << "Number of RDs: " << std::accumulate(test.counters.numberofreadsBanks.begin(),
+ test.counters.numberofreadsBanks.end()
+ ,0)<< endl;
+ std::cout << "Number of PREs: " << std::accumulate(test.counters.numberofpresBanks.begin(),
+ test.counters.numberofpresBanks.end()
+ ,0)<< endl;
+ // many other timing parameters in test.mpm.timings
- // Number of issued Commands
- std::cout << "# of acts" << "\t" <<test.counters.numberofacts << endl;
- std::cout << "# of reads" << "\t" <<test.counters.numberofreads << endl;
- std::cout << "# of precharges" << "\t" <<test.counters.numberofpres << endl;
- // many other timing parameters in test.mpm.timings
+ //ENERGIES per Rank
+ std::cout << "ACT Cmd Energy: " << test.getEnergy().act_energy << " pJ" << endl;
+ std::cout << "PRE Cmd Energy: " << test.getEnergy().pre_energy << " pJ" << endl;
+ std::cout << "RD Cmd Energy: " << test.getEnergy().read_energy << " pJ" << endl;
+ std::cout << "WR Cmd Energy: " << test.getEnergy().write_energy << " pJ" << endl << endl;
+ //Standby Energy for 1 rank
+ //In total energy calculated for both ranks= test.memSpec.memArchSpec *
+ //test.getEnergy().act_stdby_energy
+ std::cout << "ACT Stdby Energy: " << test.getEnergy().act_stdby_energy << " pJ" << endl;
+ //total active standby energy for both ranks
+ std::cout << "ACT Stdby Energy total ranks: " << static_cast<double>(memSpec.memArchSpec.nbrOfRanks) *
+ test.getEnergy().act_stdby_energy << " pJ" << endl ;
+ std::cout << "PRE Stdby Energy: " << test.getEnergy().pre_stdby_energy << " pJ" << endl << endl;
+ std::cout << "Total Trace Energy: " << test.getEnergy().total_energy << " pJ" << endl;
+ //many other energies in test.mpm.energy
- //ENERGIES per Rank
- std::cout << "ACT Cmd Energy" << "\t" << test.getEnergy().act_energy << endl;
- std::cout << "PRE Cmd Energy" << "\t" << test.getEnergy().pre_energy << endl;
- std::cout << "Read Cmd Energy" << "\t" << test.getEnergy().read_energy << endl;
- std::cout << "Write Cmd Energy" << "\t" << test.getEnergy().write_energy << endl;
- //Standby Energy for 1 rank
- //In total energy calculated for both ranks= test.memSpec.memArchSpec *
- //test.getEnergy().act_stdby_energy
- std::cout << "ACT Std Energy" << "\t" << test.getEnergy().act_stdby_energy << endl;
- //total active standby energy for both ranks
- std::cout << "ACT Std Energy total ranks" << "\t" << static_cast<double>(memSpec.memArchSpec.nbrOfRanks) *
- test.getEnergy().act_stdby_energy << "\n" ;
- std::cout << "PRE Std Energy" << "\t" << test.getEnergy().pre_stdby_energy << endl;
- std::cout << "Total Energy" << "\t" << test.getEnergy().total_energy << endl;
- //many other energies in test.mpm.energy
+ //Powers per Rank
+ std::cout << "Average Power: " << test.getPower().average_power << " mW" << endl;
+ //many other powers in test.getPower()
- //Powers per Rank
- std::cout << "Average Power" << "\t" << test.getPower().average_power << endl;
- //many other powers in test.getPower()
+ cout.flags(flags);
+ cout.precision(precision);
- // Test clearState function.
- test.clearState();
- return 0;
+ return 0;
}
* Neha Agarwal
* Omar Naji
* Wendy Elsasser
+ * Radhika Jagtap
*/
#include "mem/dram_ctrl.hh"
frontendLatency(p->static_frontend_latency),
backendLatency(p->static_backend_latency),
busBusyUntil(0), prevArrival(0),
- nextReqTime(0), activeRank(0), timeStampOffset(0)
+ nextReqTime(0), activeRank(0), timeStampOffset(0),
+ lastStatsResetTick(0)
{
// sanity check the ranks since we rely on bit slicing for the
// address decoding
if (queue.size() == 1) {
DRAMPacket* dram_pkt = queue.front();
// available rank corresponds to state refresh idle
- if (ranks[dram_pkt->rank]->isAvailable()) {
+ if (ranks[dram_pkt->rank]->inRefIdleState()) {
found_packet = true;
DPRINTF(DRAM, "Single request, going to a free rank\n");
} else {
// check if there is a packet going to a free rank
for (auto i = queue.begin(); i != queue.end() ; ++i) {
DRAMPacket* dram_pkt = *i;
- if (ranks[dram_pkt->rank]->isAvailable()) {
+ if (ranks[dram_pkt->rank]->inRefIdleState()) {
queue.erase(i);
queue.push_front(dram_pkt);
found_packet = true;
DRAMPacket* dram_pkt = *i;
const Bank& bank = dram_pkt->bankRef;
- // check if rank is available, if not, jump to the next packet
- if (dram_pkt->rankRef.isAvailable()) {
+ // check if rank is not doing a refresh and thus is available, if not,
+ // jump to the next packet
+ if (dram_pkt->rankRef.inRefIdleState()) {
// check if it is a row hit
if (bank.openRow == dram_pkt->row) {
// no additional rank-to-rank or same bank-group
{
int busyRanks = 0;
for (auto r : ranks) {
- if (!r->isAvailable()) {
+ if (!r->inRefIdleState()) {
if (r->pwrState != PWR_SREF) {
// rank is busy refreshing
DPRINTF(DRAMState, "Rank %d is not available\n", r->rank);
return;
DRAMPacket* dram_pkt = readQueue.front();
- assert(dram_pkt->rankRef.isAvailable());
+ assert(dram_pkt->rankRef.inRefIdleState());
// here we get a bit creative and shift the bus busy time not
// just the tWTR, but also a CAS latency to capture the fact
found_write = chooseNext(writeQueue,
switched_cmd_type ? std::min(tRTW, tCS) : 0);
- // if no writes to an available rank are found then return.
- // There could be reads to the available ranks. However, to avoid
- // adding more complexity to the code, return at this point and wait
- // for a refresh event to kick things into action again.
+ // if there are no writes to a rank that is available to service
+ // requests (i.e. rank is in refresh idle state) are found then
+ // return. There could be reads to the available ranks. However, to
+ // avoid adding more complexity to the code, return at this point and
+ // wait for a refresh event to kick things into action again.
if (!found_write)
return;
DRAMPacket* dram_pkt = writeQueue.front();
- assert(dram_pkt->rankRef.isAvailable());
+ assert(dram_pkt->rankRef.inRefIdleState());
// sanity check
assert(dram_pkt->size <= burstSize);
// bank in question
vector<bool> got_waiting(ranksPerChannel * banksPerRank, false);
for (const auto& p : queue) {
- if (p->rankRef.isAvailable())
+ if (p->rankRef.inRefIdleState())
got_waiting[p->bankId] = true;
}
// amongst the first available, update the mask
if (got_waiting[bank_id]) {
// make sure this rank is not currently refreshing.
- assert(ranks[i]->isAvailable());
+ assert(ranks[i]->inRefIdleState());
// simplistic approximation of when the bank can issue
// an activate, ignoring any rank-to-rank switching
// cost in this calculation
} else if (pwrState == PWR_IDLE) {
DPRINTF(DRAMState, "All banks precharged\n");
if (prev_state == PWR_SREF) {
- // set refresh state to REF_SREF_EXIT, ensuring isAvailable
+ // set refresh state to REF_SREF_EXIT, ensuring inRefIdleState
// continues to return false during tXS after SREF exit
// Schedule a refresh which kicks things back into action
// when it finishes
// flush cmdList to DRAMPower
flushCmdList();
- // update the counters for DRAMPower, passing false to
- // indicate that this is not the last command in the
- // list. DRAMPower requires this information for the
- // correct calculation of the background energy at the end
- // of the simulation. Ideally we would want to call this
- // function with true once at the end of the
- // simulation. However, the discarded energy is extremly
- // small and does not effect the final results.
- power.powerlib.updateCounters(false);
-
- // call the energy function
- power.powerlib.calcEnergy();
-
- // Get the energy and power from DRAMPower
- Data::MemoryPowerModel::Energy energy =
- power.powerlib.getEnergy();
- Data::MemoryPowerModel::Power rank_power =
- power.powerlib.getPower();
-
- actEnergy = energy.act_energy * memory.devicesPerRank;
- preEnergy = energy.pre_energy * memory.devicesPerRank;
- readEnergy = energy.read_energy * memory.devicesPerRank;
- writeEnergy = energy.write_energy * memory.devicesPerRank;
- refreshEnergy = energy.ref_energy * memory.devicesPerRank;
- actBackEnergy = energy.act_stdby_energy * memory.devicesPerRank;
- preBackEnergy = energy.pre_stdby_energy * memory.devicesPerRank;
- actPowerDownEnergy = energy.f_act_pd_energy * memory.devicesPerRank;
- prePowerDownEnergy = energy.f_pre_pd_energy * memory.devicesPerRank;
- selfRefreshEnergy = energy.sref_energy * memory.devicesPerRank;
- totalEnergy = energy.total_energy * memory.devicesPerRank;
- averagePower = rank_power.average_power * memory.devicesPerRank;
+ // Call the function that calculates window energy at intermediate update
+ // events like at refresh, stats dump as well as at simulation exit.
+ // Window starts at the last time the calcWindowEnergy function was called
+ // and is upto current time.
+ power.powerlib.calcWindowEnergy(divCeil(curTick(), memory.tCK) -
+ memory.timeStampOffset);
+
+ // Get the energy from DRAMPower
+ Data::MemoryPowerModel::Energy energy = power.powerlib.getEnergy();
+
+ // The energy components inside the power lib are calculated over
+ // the window so accumulate into the corresponding gem5 stat
+ actEnergy += energy.act_energy * memory.devicesPerRank;
+ preEnergy += energy.pre_energy * memory.devicesPerRank;
+ readEnergy += energy.read_energy * memory.devicesPerRank;
+ writeEnergy += energy.write_energy * memory.devicesPerRank;
+ refreshEnergy += energy.ref_energy * memory.devicesPerRank;
+ actBackEnergy += energy.act_stdby_energy * memory.devicesPerRank;
+ preBackEnergy += energy.pre_stdby_energy * memory.devicesPerRank;
+ actPowerDownEnergy += energy.f_act_pd_energy * memory.devicesPerRank;
+ prePowerDownEnergy += energy.f_pre_pd_energy * memory.devicesPerRank;
+ selfRefreshEnergy += energy.sref_energy * memory.devicesPerRank;
+
+ // Accumulate window energy into the total energy.
+ totalEnergy += energy.window_energy * memory.devicesPerRank;
+ // Average power must not be accumulated but calculated over the time
+ // since last stats reset. SimClock::Frequency is tick period not tick
+ // frequency.
+ // energy (pJ) 1e-9
+ // power (mW) = ----------- * ----------
+ // time (tick) tick_frequency
+ averagePower = (totalEnergy.value() /
+ (curTick() - memory.lastStatsResetTick)) *
+ (SimClock::Frequency / 1000000000.0);
}
void
DRAMCtrl::Rank::computeStats()
{
- DPRINTF(DRAM,"Computing final stats\n");
-
- // Force DRAM power to update counters based on time spent in
- // current state up to curTick()
- cmdList.push_back(Command(MemCommand::NOP, 0, curTick()));
+ DPRINTF(DRAM,"Computing stats due to a dump callback\n");
// Update the stats
updatePowerStats();
}
+void
+DRAMCtrl::Rank::resetStats() {
+ // The only way to clear the counters in DRAMPower is to call
+ // calcWindowEnergy function as that then calls clearCounters. The
+ // clearCounters method itself is private.
+ power.powerlib.calcWindowEnergy(divCeil(curTick(), memory.tCK) -
+ memory.timeStampOffset);
+
+}
+
void
DRAMCtrl::Rank::regStats()
{
.desc("Total Idle time Per DRAM Rank");
registerDumpCallback(new RankDumpCallback(this));
+ registerResetCallback(new RankResetCallback(this));
}
void
DRAMCtrl::regStats()
r->regStats();
}
+ registerResetCallback(new MemResetCallback(this));
+
readReqs
.name(name() + ".readReqs")
.desc("Number of read requests accepted");
// true until proven false
bool all_ranks_drained = true;
for (auto r : ranks) {
- // then verify that the power state is IDLE
- // ensuring all banks are closed and rank is not in a low power state
- all_ranks_drained = r->inPwrIdleState() && all_ranks_drained;
+ // then verify that the power state is IDLE ensuring all banks are
+ // closed and rank is not in a low power state. Also verify that rank
+ // is idle from a refresh point of view.
+ all_ranks_drained = r->inPwrIdleState() && r->inRefIdleState() &&
+ all_ranks_drained;
}
return all_ranks_drained;
}
* Omar Naji
* Matthias Jung
* Wendy Elsasser
+ * Radhika Jagtap
*/
/**
void suspend();
/**
- * Check if the current rank is available for scheduling.
- * Rank will be unavailable if refresh is ongoing.
- * This includes refresh events explicitly scheduled from the the
- * controller or memory initiated events which will occur during
- * self-refresh mode.
+ * Check if there is no refresh and no preparation of refresh ongoing
+ * i.e. the refresh state machine is in idle
*
* @param Return true if the rank is idle from a refresh point of view
*/
- bool isAvailable() const { return refreshState == REF_IDLE; }
+ bool inRefIdleState() const { return refreshState == REF_IDLE; }
/**
* Check if the current rank has all banks closed and is not
*/
void computeStats();
+ /**
+ * Reset stats on a stats event
+ */
+ void resetStats();
+
/**
* Schedule a transition to power-down (sleep)
*
};
- // define the process to compute stats on simulation exit
- // defined per rank as the per rank stats are based on state
- // transition and periodically updated, requiring re-sync at
- // exit.
+ /**
+ * Define the process to compute stats on a stats dump event, e.g. on
+ * simulation exit or intermediate stats dump. This is defined per rank
+ * as the per rank stats are based on state transition and periodically
+ * updated, requiring re-sync at exit.
+ */
class RankDumpCallback : public Callback
{
Rank *ranks;
virtual void process() { ranks->computeStats(); };
};
+ /** Define a process to clear power lib counters on a stats reset */
+ class RankResetCallback : public Callback
+ {
+ private:
+ /** Pointer to the rank, thus we instantiate per rank */
+ Rank *rank;
+
+ public:
+ RankResetCallback(Rank *r) : rank(r) {}
+ virtual void process() { rank->resetStats(); };
+ };
+
+ /** Define a process to store the time on a stats reset */
+ class MemResetCallback : public Callback
+ {
+ private:
+ /** A reference to the DRAMCtrl instance */
+ DRAMCtrl *mem;
+
+ public:
+ MemResetCallback(DRAMCtrl *_mem) : mem(_mem) {}
+ virtual void process() { mem->lastStatsResetTick = curTick(); };
+ };
+
/**
* A burst helper helps organize and manage a packet that is larger than
* the DRAM burst size. A system packet that is larger than the burst size
// timestamp offset
uint64_t timeStampOffset;
+ /** The time when stats were last reset used to calculate average power */
+ Tick lastStatsResetTick;
+
/**
* Upstream caches need this packet until true is returned, so
* hold it for deletion until a subsequent call
projects / gem5.git / commitdiff