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//developed by Mahmoud Khairy, Purdue Univ
//[email protected]
//#include "../abstract_hardware_model.h"
#include <time.h>
#include <stdio.h>
#include <vector>
#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <stdio.h>
#include <math.h>
//#include "../option_parser.h"
//#include "../cuda-sim/cuda-sim.h"
//#include "../cuda-sim/ptx_ir.h"
//#include "../cuda-sim/ptx_parser.h"
#include "../gpgpu-sim/gpu-sim.h"
//#include "../gpgpu-sim/icnt_wrapper.h"
//#include "../gpgpu-sim/icnt_wrapper.h"
#include "../../libcuda/gpgpu_context.h"
#include "trace_driven.h"
//#include "../stream_manager.h"
void arguments_check();
int main ( int argc, const char **argv )
{
gpgpu_context* m_gpgpu_context = GPGPU_Context();
gpgpu_sim * m_gpgpu_sim = m_gpgpu_context->gpgpu_trace_sim_init_perf(argc,argv);
m_gpgpu_sim->init();
//for each kernel
//load file
//parse and create kernel info
//launch
//while loop till the end of the end kernel execution
//prints stats
trace_parser tracer(m_gpgpu_sim->get_config().get_traces_filename(), m_gpgpu_sim, m_gpgpu_context);
std::vector<std::string> kernellist;
tracer.parse_kernellist_file(kernellist);
for(unsigned i=0; i<kernellist.size(); ++i) {
trace_kernel_info_t* kernel_info = tracer.parse_kernel_info(kernellist[i]);
m_gpgpu_sim->launch(kernel_info);
bool active = false;
bool sim_cycles = false;
bool break_limit = false;
do {
if(!m_gpgpu_sim->active())
break;
//performance simulation
if( m_gpgpu_sim->active() ) {
m_gpgpu_sim->cycle();
sim_cycles = true;
m_gpgpu_sim->deadlock_check();
}else {
if(m_gpgpu_sim->cycle_insn_cta_max_hit()){
g_stream_manager()->stop_all_running_kernels();
break_limit = true;
}
}
active=m_gpgpu_sim->active() ;
} while( active );
tracer.kernel_finalizer(kernel_info);
m_gpgpu_sim->print_stats();
if(sim_cycles) {
m_gpgpu_sim->update_stats();
print_simulation_time();
}
if(break_limit) {
printf("GPGPU-Sim: ** break due to reaching the maximum cycles (or instructions) **\n");
fflush(stdout);
exit(1);
}
}
return 1;
}
trace_parser::trace_parser(const char* kernellist_filepath, gpgpu_sim * m_gpgpu_sim, gpgpu_context* m_gpgpu_context)
{
this->m_gpgpu_sim = m_gpgpu_sim;
this->m_gpgpu_context = m_gpgpu_context;
kernellist_filename = kernellist_filepath;
}
void trace_parser::parse_kernellist_file(std::vector<std::string>& kernellist) {
ifs.open(kernellist_filename);
if (!ifs.is_open()) {
std::cout << "Unable to open file: " <<kernellist_filename<<std::endl;
exit(1);
}
std::string directory(kernellist_filename);
const size_t last_slash_idx = directory.rfind('/');
if (std::string::npos != last_slash_idx)
{
directory = directory.substr(0, last_slash_idx);
}
std::string line, filepath;
while(!ifs.eof()) {
getline(ifs, line);
if(line.empty())
continue;
filepath = directory+"/"+line;
kernellist.push_back(filepath);
}
ifs.close();
}
trace_kernel_info_t* trace_parser::parse_kernel_info(const std::string& kerneltraces_filepath) {
ifs.open(kerneltraces_filepath.c_str());
if (!ifs.is_open()) {
std::cout << "Unable to open file: " <<kerneltraces_filepath<<std::endl;
exit(1);
}
std::cout << "Processing kernel " <<kerneltraces_filepath<<std::endl;
unsigned grid_dim_x=0, grid_dim_y=0, grid_dim_z=0, tb_dim_x=0, tb_dim_y=0, tb_dim_z=0;
unsigned shmem=0, nregs=0, cuda_stream_id=0, kernel_id=0;
std::string line;
std::stringstream ss;
std::string string1, string2;
std::string kernel_name;
while(!ifs.eof()) {
getline(ifs, line);
if (line.length() == 0) {
continue;
}
else if(line[0] == '#'){
break; //the begin of the instruction stream
}
else if(line[0] == '-') {
ss.str(line);
ss.ignore();
ss>>string1>>string2;
if(string1 == "kernel" && string2 == "name") {
const size_t equal_idx = line.find('=');
kernel_name = line.substr(equal_idx+1);
}
else if(string1 == "kernel" && string2 == "id") {
sscanf(line.c_str(), "-kernel id = %d", &kernel_id);
}
else if(string1 == "grid" && string2 == "dim") {
sscanf(line.c_str(), "-grid dim = (%d,%d,%d)", &grid_dim_x, &grid_dim_y, &grid_dim_z);
}
else if (string1 == "block" && string2 == "dim") {
sscanf(line.c_str(), "-block dim = (%d,%d,%d)", &tb_dim_x, &tb_dim_y, &tb_dim_z);
}
else if (string1 == "shmem") {
sscanf(line.c_str(), "-shmem = %d", &shmem);
}
else if (string1 == "nregs") {
sscanf(line.c_str(), "-nregs = %d", &nregs);
}
else if (string1 == "cuda" && string2 == "stream") {
sscanf(line.c_str(), "-cuda stream id = %d", &cuda_stream_id);
}
continue;
}
}
gpgpu_ptx_sim_info info;
info.smem = shmem;
info.regs = nregs;
dim3 gridDim(grid_dim_x, grid_dim_y, grid_dim_z);
dim3 blockDim(tb_dim_x, tb_dim_y, tb_dim_z);
trace_function_info* function_info = new trace_function_info(info, m_gpgpu_context);
trace_kernel_info_t* kernel_info = new trace_kernel_info_t(gridDim, blockDim, function_info, kerneltraces_filepath);
return kernel_info;
}
void trace_parser::kernel_finalizer(trace_kernel_info_t* kernel_info){
if (ifs.is_open())
ifs.close();
delete kernel_info->entry();
delete kernel_info;
}
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