+++ /dev/null
-
-#include "mem/ruby/network/simple/CustomTopology.hh"
-#include "mem/protocol/MachineType.hh"
-
-static const int INFINITE_LATENCY = 10000; // Yes, this is a big hack
-static const int DEFAULT_BW_MULTIPLIER = 1; // Just to be consistent with above :)
-
-// make a network as described by the networkFile
-void CustomTopology::construct()
-{
-
- 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
-
- endpointConnectionExist.setSize(m_nodes);
-
- // initialize endpoint check vector
- for (int k = 0; k < endpointConnectionExist.size(); k++) {
- endpointConnectionExist[k] = false;
- }
-
- stringstream networkFile( m_connections );
-
- string line = "";
-
- while (!networkFile.eof()) {
-
- Vector < SwitchID > nodes;
- nodes.setSize(2);
- int latency = -1; // null latency
- int weight = -1; // null weight
- int bw_multiplier = DEFAULT_BW_MULTIPLIER; // default multiplier incase the network file doesn't define it
- int i = 0; // node pair index
- int varsFound = 0; // number of varsFound on the line
- int internalNodes = 0; // used to determine if the link is between 2 internal nodes
- std::getline(networkFile, line, '\n');
- string varStr = string_split(line, ' ');
-
- // parse the current line in the file
- while (varStr != "") {
- string label = string_split(varStr, ':');
-
- // valid node labels
- if (label == "ext_node" || label == "int_node") {
- ASSERT(i < 2); // one link between 2 switches per line
- varsFound++;
- bool isNewIntSwitch = true;
- if (label == "ext_node") { // input link to node
- MachineType machine = string_to_MachineType(string_split(varStr, ':'));
- string nodeStr = string_split(varStr, ':');
- nodes[i] = MachineType_base_number(machine)
- + atoi(nodeStr.c_str());
-
- // in nodes should be numbered 0 to m_nodes-1
- ASSERT(nodes[i] >= 0 && nodes[i] < m_nodes);
- isNewIntSwitch = false;
- endpointConnectionExist[nodes[i]] = true;
- }
- if (label == "int_node") { // interior node
- nodes[i] = atoi((string_split(varStr, ':')).c_str())+m_nodes*2;
- // in nodes should be numbered >= m_nodes*2
- ASSERT(nodes[i] >= m_nodes*2);
- for (int k = 0; k < int_network_switches.size(); k++) {
- if (int_network_switches[k] == nodes[i]) {
- isNewIntSwitch = false;
- }
- }
- if (isNewIntSwitch) { // if internal switch
- m_number_of_switches++;
- int_network_switches.insertAtBottom(nodes[i]);
- }
- internalNodes++;
- }
- i++;
- } else if (label == "link_latency") {
- latency = atoi((string_split(varStr, ':')).c_str());
- varsFound++;
- } else if (label == "bw_multiplier") { // not necessary, defaults to DEFAULT_BW_MULTIPLIER
- bw_multiplier = atoi((string_split(varStr, ':')).c_str());
- } else if (label == "link_weight") { // not necessary, defaults to link_latency
- weight = atoi((string_split(varStr, ':')).c_str());
- } else {
- cerr << "Error: Unexpected Identifier: " << label << endl;
- exit(1);
- }
- varStr = string_split(line, ' ');
- }
- if (varsFound == 3) { // all three necessary link variables where found so add the link
- nodePairs.insertAtBottom(nodes);
- latencies.insertAtBottom(latency);
- if (weight != -1) {
- weights.insertAtBottom(weight);
- } else {
- weights.insertAtBottom(latency);
- }
- bw_multis.insertAtBottom(bw_multiplier);
- Vector < SwitchID > otherDirectionNodes;
- otherDirectionNodes.setSize(2);
- otherDirectionNodes[0] = nodes[1];
- if (internalNodes == 2) { // this is an internal link
- otherDirectionNodes[1] = nodes[0];
- } else {
- otherDirectionNodes[1] = nodes[0]+m_nodes;
- }
- nodePairs.insertAtBottom(otherDirectionNodes);
- latencies.insertAtBottom(latency);
- if (weight != -1) {
- weights.insertAtBottom(weight);
- } else {
- weights.insertAtBottom(latency);
- }
- bw_multis.insertAtBottom(bw_multiplier);
- } else {
- if (varsFound != 0) { // if this is not a valid link, then no vars should have been found
- cerr << "Error in line: " << line << endl;
- exit(1);
- }
- }
- } // end of file
-
- // makes sure all enpoints are connected in the soon to be created network
- for (int k = 0; k < endpointConnectionExist.size(); k++) {
- if (endpointConnectionExist[k] == false) {
- cerr << "Error: Unconnected Endpoint: " << k << endl;
- exit(1);
- }
- }
-
- ASSERT(nodePairs.size() == latencies.size() && latencies.size() == bw_multis.size() && latencies.size() == weights.size())
- for (int k = 0; k < nodePairs.size(); k++) {
- ASSERT(nodePairs[k].size() == 2);
- addLink(nodePairs[k][0], nodePairs[k][1], latencies[k], bw_multis[k], weights[k]);
- }
-
- // networkFile.close();
-}