latency = 15
size = 1048576
-# It would be nice to lump all the network nodes into a single list,
-# but for consistency with the old scripts I'm segregating them by
-# type. I'm not sure if this is really necessary or not.
+#
+# The ruby network creation expects the list of nodes in the system to be
+# consistent with the NetDest list. Therefore the l1 controller nodes must be
+# listed before the directory nodes and directory nodes before dma nodes, etc.
+#
# net_nodes = []
l1_cntrl_nodes = []
dir_cntrl_nodes = []
-for cpu in cpus:
+#
+# Must create the individual controllers before the network to ensure the
+# controller constructors are called before the network constructor
+#
+for (i, cpu) in enumerate(cpus):
l1_cntrl = L1Cache_Controller()
cpu_seq = RubySequencer(controller = l1_cntrl,
icache = L1Cache(controller = l1_cntrl),
l1_cntrl_nodes.append(l1_cntrl)
dir_cntrl_nodes.append(dir_cntrl)
+#
+# Important: the topology constructor must be called before the network
+# constructor.
+#
network = SimpleNetwork(topology = makeCrossbar(l1_cntrl_nodes + \
dir_cntrl_nodes))
#include "mem/protocol/MachineType.hh"
#include "mem/ruby/network/Network.hh"
+#include "mem/ruby/network/simple/Topology.hh"
Network::Network(const Params *p)
: SimObject(p)
m_link_latency = p->link_latency;
m_control_msg_size = p->control_msg_size;
+ //
+ // Total nodes/controllers in network
+ // Must make sure this is called after the State Machine constructors
+ //
+ m_nodes = MachineType_base_number(MachineType_NUM);
+ assert(m_nodes != 0);
+
assert(m_virtual_networks != 0);
assert(m_topology_ptr != NULL);
+
+ //
+ // Initialize the controller's network pointers
+ //
+ m_topology_ptr->initNetworkPtr(this);
}
void Network::init()
{
- m_nodes = MachineType_base_number(MachineType_NUM); // Total nodes in network
-
m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size;
}
SimpleNetwork::SimpleNetwork(const Params *p)
: Network(p)
{
-}
-
-void SimpleNetwork::init()
-{
-
- Network::init();
-
+ //
+ // Note: the parent Network Object constructor is called before the
+ // SimpleNetwork child constructor. Therefore, the member variables
+ // used below should already be initialized.
+ //
+
m_endpoint_switches.setSize(m_nodes);
m_in_use.setSize(m_virtual_networks);
"fromNet node "+int_to_string(node)+" j "+int_to_string(j));
}
}
+}
+
+void SimpleNetwork::init()
+{
+
+ Network::init();
- // Setup the network switches
- // m_topology_ptr = new Topology(this, m_nodes);
- m_topology_ptr->makeTopology();
+ //
+ // The topology pointer should have already been initialized in the parent
+ // class network constructor.
+ //
+ assert(m_topology_ptr != NULL);
int number_of_switches = m_topology_ptr->numSwitches();
for (int i=0; i<number_of_switches; i++) {
m_switch_ptr_vector.insertAtBottom(new Switch(i, this));
{
m_print_config = p->print_config;
m_number_of_switches = p->num_int_nodes;
- // initialize component latencies record
- m_component_latencies.setSize(0);
- m_component_inter_switches.setSize(0);
-}
-
-void Topology::init()
-{
- // need to defer this until init, to guarantee that constructors
- // for all the controller objects have been called.
+ // initialize component latencies record
+ m_component_latencies.setSize(0);
+ m_component_inter_switches.setSize(0);
+
+ //
+ // Total nodes/controllers in network
+ // Must make sure this is called after the State Machine constructors
+ //
m_nodes = MachineType_base_number(MachineType_NUM);
-}
+ assert(m_nodes > 1);
-void Topology::makeTopology()
-{
if (m_nodes != params()->ext_links.size()) {
fatal("m_nodes (%d) != ext_links vector length (%d)\n",
m_nodes != params()->ext_links.size());
}
-
-
- /*
- if (m_nodes == 1) {
- SwitchID id = newSwitchID();
- addLink(0, id, m_network_ptr->getOffChipLinkLatency());
- addLink(id, 1, m_network_ptr->getOffChipLinkLatency());
- return;
- }
- */
- assert(m_nodes > 1);
-
- Vector< Vector < SwitchID > > nodePairs; // node pairs extracted from the file
- Vector<int> latencies; // link latencies for each link extracted
- Vector<int> bw_multis; // bw multipliers for each link extracted
- Vector<int> weights; // link weights used to enfore e-cube deadlock free routing
- Vector< SwitchID > int_network_switches; // internal switches extracted from the file
- Vector<bool> endpointConnectionExist; // used to ensure all endpoints are connected to the network
-
+ //
+ // First create the links between the endpoints (i.e. controllers) and the
+ // network.
+ //
for (vector<ExtLink*>::const_iterator i = params()->ext_links.begin();
i != params()->ext_links.end(); ++i)
{
const ExtLinkParams *p = (*i)->params();
AbstractController *c = p->ext_node;
+
+ // Store the controller pointers for later
+ m_controller_vector.insertAtBottom(c);
+
int ext_idx1 =
MachineType_base_number(c->getMachineType()) + c->getVersion();
int ext_idx2 = ext_idx1 + m_nodes;
int int_idx = p->int_node + 2*m_nodes;
+ // create the links in both directions
addLink(ext_idx1, int_idx, p->latency, p->bw_multiplier, p->weight);
addLink(int_idx, ext_idx2, p->latency, p->bw_multiplier, p->weight);
}
const IntLinkParams *p = (*i)->params();
int a = p->node_a + 2*m_nodes;
int b = p->node_b + 2*m_nodes;
+
+ // create the links in both directions
addLink(a, b, p->latency, p->bw_multiplier, p->weight);
addLink(b, a, p->latency, p->bw_multiplier, p->weight);
}
}
+void Topology::initNetworkPtr(Network* net_ptr)
+{
+ for (int cntrl = 0; cntrl < m_controller_vector.size(); cntrl++)
+ {
+ m_controller_vector[cntrl]->initNetworkPtr(net_ptr);
+ }
+}
+
+
void Topology::createLinks(Network *net, bool isReconfiguration)
{
// Find maximum switchID
// Destructor
virtual ~Topology() {}
- virtual void init();
-
// Public Methods
- void makeTopology();
int numSwitches() const { return m_number_of_switches; }
void createLinks(Network *net, bool isReconfiguration);
+ void initNetworkPtr(Network* net_ptr);
+
const string getName() { return m_name; }
void printStats(ostream& out) const {}
void clearStats() {}
NodeID m_nodes;
int m_number_of_switches;
+ Vector<AbstractController*> m_controller_vector;
+
Vector<SwitchID> m_links_src_vector;
Vector<SwitchID> m_links_dest_vector;
Vector<int> m_links_latency_vector;
#include "mem/ruby/common/Consumer.hh"
#include "mem/protocol/MachineType.hh"
#include "mem/ruby/common/Address.hh"
+#include "mem/ruby/network/Network.hh"
class MessageBuffer;
class Network;
virtual const MachineType getMachineType() const = 0;
virtual void blockOnQueue(Address, MessageBuffer*) = 0;
virtual void unblock(Address) = 0;
+ virtual void initNetworkPtr(Network* net_ptr) = 0;
virtual void print(ostream & out) const = 0;
virtual void printStats(ostream & out) const = 0;
const string toString() const;
const string getName() const;
const MachineType getMachineType() const;
+ void initNetworkPtr(Network* net_ptr) { m_net_ptr = net_ptr; }
void print(ostream& out) const;
void printConfig(ostream& out) const;
void wakeup();
projects / gem5.git / commitdiff