int main( int argc, char **argv )
{
BookSimConfig config;
if ( !ParseArgs( &config, argc, argv ) ) {
cerr << "Usage: " << argv[0] << " configfile... [param=value...]" << endl;
return 0;
}
/*initialize routing, traffic, injection functions
*/
InitializeRoutingMap( config );
gPrintActivity = (config.GetInt("print_activity") > 0);
gTrace = (config.GetInt("viewer_trace") > 0);
string watch_out_file = config.GetStr( "watch_out" );
if(watch_out_file == "") {
gWatchOut = NULL;
} else if(watch_out_file == "-") {
gWatchOut = &cout;
} else {
gWatchOut = new ofstream(watch_out_file.c_str());
}
/*configure and run the simulator
*/
bool result = Simulate( config );
return result ? -1 : 0;
}
bool Simulate( BookSimConfig const & config )
{
vector<Network *> net;
int subnets = config.GetInt("subnets");
/*To include a new network, must register the network here
*add an else if statement with the name of the network
*/
net.resize(subnets);
for (int i = 0; i < subnets; ++i) {
ostringstream name;
name << "network_" << i;
net[i] = Network::New( config, name.str() );
}
/*tcc and characterize are legacy
*not sure how to use them
*/
assert(trafficManager == NULL);
trafficManager = TrafficManager::New( config, net ) ;
/*Start the simulation run
*/
double total_time; /* Amount of time we've run */
struct timeval start_time, end_time; /* Time before/after user code */
total_time = 0.0;
gettimeofday(&start_time, NULL);
bool result = trafficManager->Run() ;
gettimeofday(&end_time, NULL);
total_time = ((double)(end_time.tv_sec) + (double)(end_time.tv_usec)/1000000.0)
- ((double)(start_time.tv_sec) + (double)(start_time.tv_usec)/1000000.0);
cout<<"Total run time "<<total_time<<endl;
for (int i=0; i<subnets; ++i) {
///Power analysis
if(config.GetInt("sim_power") > 0){
Power_Module pnet(net[i], config);
pnet.run();
}
delete net[i];
}
delete trafficManager;
trafficManager = NULL;
return result;
}
int fixed_latency(int input, int output)
{
int latency;
if (perfect_icnt) {
latency = 1;
} else {
int dim = icnt_config.GetInt( "k" );
int xhops = abs ( input%dim - output%dim);
int yhops = abs ( input/dim - output/dim);
latency = ( (xhops+yhops)*fixed_lat_icnt );
}
return latency;
}
int main( int argc, char **argv )
{
BookSimConfig config;
if ( !ParseArgs( &config, argc, argv ) ) {
cout << "Usage: " << argv[0] << " configfile" << endl;
return 0;
}
/*print the configuration file at the begining of the reprot
*/
ifstream in(argv[1]);
char c;
cout << "BEGIN Configuration File" << endl;
cout << "Name: " << argv[1] << endl;
while (!in.eof()) {
in.get(c);
cout << c ;
}
cout << "END Configuration File" << endl;
_threads = config.GetInt("threads");
/*initialize routing, traffic, injection functions
*/
InitializeRoutingMap( );
InitializeTrafficMap( );
InitializeInjectionMap( );
_print_activity = (config.GetInt("print_activity")==1);
_trace = (config.GetInt("viewer trace")==1);
_use_read_write = (config.GetInt("use_read_write")==1);
config.GetStr( "watch_file", watch_file );
_use_noc_latency = (config.GetInt("use_noc_latency")==1);
/*configure and run the simulator
*/
bool result;
// for(int i = 0; i<2; i++){
result = AllocatorSim( config );
//}
return result ? -1 : 0;
}
void interconnect_stats()
{
if (!fixed_lat_icnt) {
for (unsigned i=0; i<net_c;i++) {
cout <<"Traffic "<<i<< " Stat" << endl;
traffic[i]->ShowStats();
if (icnt_config.GetInt("enable_link_stats")) {
cout << "%=================================" << endl;
cout <<"Traffic "<<i<< "Link utilizations:" << endl;
traffic[i]->_net->Display();
}
}
} else {
//show max queue sizes
cout<<"Max Fixed Latency ICNT queue size for"<<endl;
for (unsigned i=0;i<(_n_mem + _n_shader);i++) {
cout<<" node[" << i <<"] is "<<max_fixedlat_buf_size[i];
}
cout<<endl;
}
}
void init_interconnect (char* config_file,
unsigned int n_shader,
unsigned int n_mem )
{
_n_shader = n_shader;
_n_mem = n_mem;
if (! config_file ) {
cout << "Interconnect Requires a configfile" << endl;
exit (-1);
}
icnt_config.Parse( config_file );
net_c = icnt_config.GetInt( "network_count" );
if (net_c==2) {
doub_net = true;
} else if (net_c<1 || net_c>2) {
cout <<net_c<<" Network_count less than 1 or more than 2 not supported."<<endl;
abort();
}
g_num_vcs = icnt_config.GetInt( "num_vcs" );
InitializeRoutingMap( );
InitializeTrafficMap( );
InitializeInjectionMap( );
RandomSeed( icnt_config.GetInt("seed") );
Network_gpgpu **net;
traffic = new TrafficManager *[net_c];
net = new Network_gpgpu *[net_c];
for (unsigned i=0;i<net_c;i++) {
string topo;
icnt_config.GetStr( "topology", topo );
if ( topo == "torus" ) {
net[i] = new KNCube( icnt_config, true );
} else if ( topo =="mesh" ) {
net[i] = new KNCube( icnt_config, false );
} else if ( topo == "fly" ) {
net[i] = new KNFly( icnt_config );
} else if ( topo == "single" ) {
net[i] = new SingleNet( icnt_config );
} else {
cerr << "Unknown topology " << topo << endl;
exit(-1);
}
if ( icnt_config.GetInt( "link_failures" ) ) {
net[i]->InsertRandomFaults( icnt_config );
}
traffic[i] = new TrafficManager ( icnt_config, net[i], i/*id*/ );
}
fixed_lat_icnt = icnt_config.GetInt( "fixed_lat_per_hop" );
if (icnt_config.GetInt( "perfect_icnt" )) {
perfect_icnt = true;
fixed_lat_icnt = 1;
}
_flit_size = icnt_config.GetInt( "flit_size" );
if (icnt_config.GetInt("ejection_buf_size")) {
ejection_buffer_capacity = icnt_config.GetInt( "ejection_buf_size" ) ;
} else {
ejection_buffer_capacity = icnt_config.GetInt( "vc_buf_size" );
}
boundary_buf_capacity = icnt_config.GetInt( "boundary_buf_size" ) ;
if (icnt_config.GetInt("input_buf_size")) {
input_buffer_capacity = icnt_config.GetInt("input_buf_size");
} else {
input_buffer_capacity = 9;
}
create_buf(traffic[0]->_dests,input_buffer_capacity,icnt_config.GetInt( "num_vcs" ));
MATLAB_OUTPUT = icnt_config.GetInt("MATLAB_OUTPUT");
DISPLAY_LAT_DIST = icnt_config.GetInt("DISPLAY_LAT_DIST");
DISPLAY_HOP_DIST = icnt_config.GetInt("DISPLAY_HOP_DIST");
DISPLAY_PAIR_LATENCY = icnt_config.GetInt("DISPLAY_PAIR_LATENCY");
create_node_map(n_shader,n_mem,traffic[0]->_dests, icnt_config.GetInt("use_map"));
for (unsigned i=0;i<net_c;i++) {
traffic[i]->_FirstStep();
}
}