From 752d4e5bf622b0d7c730e3eb2f1b3e3cf91e81fa Mon Sep 17 00:00:00 2001 From: WilliamMTK Date: Wed, 11 Dec 2024 16:52:40 -0500 Subject: Add SST integration into gpgpusim (#44) * Add accommodations to run gpgpusim with SST simulation framework through balar * Output setup_environment options when sourcing * Add SST directive check when creating sim thread * Add sst side test for jenkins * sst-integration: update Jenkinsfile with offical sst-elements repo and fix bugs in pipeline script * sst-integration: direct jenkins to rebuild gpgpusim before testing for sst * sst-integration: fix bugs in sst repos config * sst-integration: let Jenkins rebuilds simulator Since the simulator needs to be configured with both normal mode and sst mode, need to rebuild make target to clean prior runs. * sst-integration: Update Jenkinsfile to source env vars when running balar test * sst-integration: refactor code to remove __SST__ flag * sst-integration: fix a bug that init cluster twice for sst * sst-integration: fix a bug of not sending mem packets to SST * sst-integration: remove sst flags from makefiles and setup_env * sst-integration: add comments to SST changes * sst-integration: remove rebuilding simulator in jenkins when testing for SST * sst-integration: revert simulator build script * Add a function to support querying function argument info for SST * sst-integration: add version detection for vanadis binary * Automated Format * add version detection support for gcc 10+ * sst-integration: add cudaMallocHost for SST * sst-integration: fix a compilation bug * sst-integration: add sst balar unittest CI * sst-integration: specify GPU_ARCH for CI test * sst-integration: use bash for github actions * sst-integration: use https links for sst repos * sst-integration: add SST dependencies to CI config * sst-integration: remove sudo * sst-integration: default to yes for apt install * sst-integration: add manual trigger for github action * sst-integration: remove wrong on event * sst-integration: limit CPU usage for compilation * sst-integration: fix wrong path * sst-integration: use personal repo for testing * sst-integration: remove sst-core source in CI to free space * sst-integration: SST_Cycle use print stats with stream id * Automated Format * sst-integration: check for diskspace and try to clean it * sst-integration: move out of docker image * sst-integration: testing for ci path * sst-integration: fix syntax * sst-integration: pass env vars * sst-integration: set env properly * sst-integration: merge LLVM build and test into same job * sst-integration: fix step order * sst-integration: checkout correct branch for env-setup * sst-integration: remove resourcing gpu apps * sst-integration: revert back to docker github action * sst-integration: enable debug trace for sst testing * sst-integration: resourcing gpu app for env vars * sst-integration: use GPUAPPS_ROOT for path for gpu app * sst-integration: use GPUAPPS_ROOT for path for gpu app * sst-integration: enable parallel ci tests and fix not returning with cudaMallocHostSST * sst-integration: using debug flag for CI run * sst-integration: revert debug ci run * sst-integration: CI skips cuda sdk download and launch multiple jobs * sst-integration: reenable parallel tests * sst-integration: reduce concurrent test thread count * sst-integration: skip long test for github runner * sst-integration: try running CI with single core * sst-integrtion: add callback to SST to check thread sync is done in SST_Cycle() * sst-integration: ignore lookup if already found and add callbacks to SST * Automated Format * sst-integration: add support for indirect texture access * Automated Format * sste-integration: fix up for PR * Automated Format --------- Co-authored-by: purdue-jenkins --- src/gpgpusim_entrypoint.cc | 138 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 129 insertions(+), 9 deletions(-) (limited to 'src/gpgpusim_entrypoint.cc') diff --git a/src/gpgpusim_entrypoint.cc b/src/gpgpusim_entrypoint.cc index 42c6981..839fef6 100644 --- a/src/gpgpusim_entrypoint.cc +++ b/src/gpgpusim_entrypoint.cc @@ -43,6 +43,20 @@ static int sg_argc = 3; static const char *sg_argv[] = {"", "-config", "gpgpusim.config"}; +// Help funcs to avoid multiple '->' for SST +GPGPUsim_ctx *GPGPUsim_ctx_ptr() { return GPGPU_Context()->the_gpgpusim; } + +class sst_gpgpu_sim *g_the_gpu() { + return static_cast(GPGPUsim_ctx_ptr()->g_the_gpu); +} + +class stream_manager *g_stream_manager() { + return GPGPUsim_ctx_ptr()->g_stream_manager; +} + +// SST callback +extern void SST_callback_cudaThreadSynchronize_done(); + void *gpgpu_sim_thread_sequential(void *ctx_ptr) { gpgpu_context *ctx = (gpgpu_context *)ctx_ptr; // at most one kernel running at a time @@ -169,6 +183,75 @@ void *gpgpu_sim_thread_concurrent(void *ctx_ptr) { return NULL; } +bool sst_sim_cycles = false; + +bool SST_Cycle() { + // Check if Synchronize is done when SST previously requested + // cudaThreadSynchronize + if (GPGPU_Context()->requested_synchronize && + ((g_stream_manager()->empty() && !GPGPUsim_ctx_ptr()->g_sim_active) || + GPGPUsim_ctx_ptr()->g_sim_done)) { + SST_callback_cudaThreadSynchronize_done(); + GPGPU_Context()->requested_synchronize = false; + } + + if (g_stream_manager()->empty_protected() && + !GPGPUsim_ctx_ptr()->g_sim_done && !g_the_gpu()->active()) { + GPGPUsim_ctx_ptr()->g_sim_active = false; + // printf("stream is empty %d \n", g_stream_manager->empty()); + return false; + } + + if (g_stream_manager()->operation(&sst_sim_cycles) && + !g_the_gpu()->active()) { + if (sst_sim_cycles) { + sst_sim_cycles = false; + } + return false; + } + + // printf("GPGPU-Sim: Give GPU Cycle\n"); + GPGPUsim_ctx_ptr()->g_sim_active = true; + + // functional simulation + if (g_the_gpu()->is_functional_sim()) { + kernel_info_t *kernel = g_the_gpu()->get_functional_kernel(); + assert(kernel); + GPGPUsim_ctx_ptr()->gpgpu_ctx->func_sim->gpgpu_cuda_ptx_sim_main_func( + *kernel); + g_the_gpu()->finish_functional_sim(kernel); + } + + // performance simulation + if (g_the_gpu()->active()) { + g_the_gpu()->SST_cycle(); + sst_sim_cycles = true; + g_the_gpu()->deadlock_check(); + } else { + if (g_the_gpu()->cycle_insn_cta_max_hit()) { + g_stream_manager()->stop_all_running_kernels(); + GPGPUsim_ctx_ptr()->g_sim_done = true; + GPGPUsim_ctx_ptr()->g_sim_active = false; + GPGPUsim_ctx_ptr()->break_limit = true; + } + } + + if (!g_the_gpu()->active()) { + g_the_gpu()->print_stats(GPGPUsim_ctx_ptr()->g_the_gpu->last_streamID); + g_the_gpu()->update_stats(); + GPGPU_Context()->print_simulation_time(); + } + + if (GPGPUsim_ctx_ptr()->break_limit) { + printf( + "GPGPU-Sim: ** break due to reaching the maximum cycles (or " + "instructions) **\n"); + return true; + } + + return false; +} + void gpgpu_context::synchronize() { printf("GPGPU-Sim: synchronize waiting for inactive GPU simulation\n"); the_gpgpusim->g_stream_manager->print(stdout); @@ -187,6 +270,27 @@ void gpgpu_context::synchronize() { // sem_post(&g_sim_signal_start); } +bool gpgpu_context::synchronize_check() { + // printf("GPGPU-Sim: synchronize checking for inactive GPU simulation\n"); + requested_synchronize = true; + the_gpgpusim->g_stream_manager->print(stdout); + fflush(stdout); + // sem_wait(&g_sim_signal_finish); + bool done = false; + pthread_mutex_lock(&(the_gpgpusim->g_sim_lock)); + done = (the_gpgpusim->g_stream_manager->empty() && + !the_gpgpusim->g_sim_active) || + the_gpgpusim->g_sim_done; + pthread_mutex_unlock(&(the_gpgpusim->g_sim_lock)); + if (done) { + printf( + "GPGPU-Sim: synchronize checking: detected inactive GPU simulation " + "thread\n"); + } + fflush(stdout); + return done; +} + void gpgpu_context::exit_simulation() { the_gpgpusim->g_sim_done = true; printf("GPGPU-Sim: exit_simulation called\n"); @@ -220,8 +324,14 @@ gpgpu_sim *gpgpu_context::gpgpu_ptx_sim_init_perf() { assert(setlocale(LC_NUMERIC, "C")); the_gpgpusim->g_the_gpu_config->init(); - the_gpgpusim->g_the_gpu = - new exec_gpgpu_sim(*(the_gpgpusim->g_the_gpu_config), this); + if (the_gpgpusim->g_the_gpu_config->is_SST_mode()) { + // Create SST specific GPGPUSim + the_gpgpusim->g_the_gpu = + new sst_gpgpu_sim(*(the_gpgpusim->g_the_gpu_config), this); + } else { + the_gpgpusim->g_the_gpu = + new exec_gpgpu_sim(*(the_gpgpusim->g_the_gpu_config), this); + } the_gpgpusim->g_stream_manager = new stream_manager( (the_gpgpusim->g_the_gpu), func_sim->g_cuda_launch_blocking); @@ -237,12 +347,17 @@ gpgpu_sim *gpgpu_context::gpgpu_ptx_sim_init_perf() { void gpgpu_context::start_sim_thread(int api) { if (the_gpgpusim->g_sim_done) { the_gpgpusim->g_sim_done = false; - if (api == 1) { - pthread_create(&(the_gpgpusim->g_simulation_thread), NULL, - gpgpu_sim_thread_concurrent, (void *)this); + if (the_gpgpusim->g_the_gpu_config->is_SST_mode()) { + // Do not create concurrent thread in SST mode + g_the_gpu()->init(); } else { - pthread_create(&(the_gpgpusim->g_simulation_thread), NULL, - gpgpu_sim_thread_sequential, (void *)this); + if (api == 1) { + pthread_create(&(the_gpgpusim->g_simulation_thread), NULL, + gpgpu_sim_thread_concurrent, (void *)this); + } else { + pthread_create(&(the_gpgpusim->g_simulation_thread), NULL, + gpgpu_sim_thread_sequential, (void *)this); + } } } } @@ -266,8 +381,13 @@ void gpgpu_context::print_simulation_time() { const unsigned cycles_per_sec = (unsigned)(the_gpgpusim->g_the_gpu->gpu_tot_sim_cycle / difference); printf("gpgpu_simulation_rate = %u (cycle/sec)\n", cycles_per_sec); - printf("gpgpu_silicon_slowdown = %ux\n", - the_gpgpusim->g_the_gpu->shader_clock() * 1000 / cycles_per_sec); + + if (cycles_per_sec == 0) { + printf("gpgpu_silicon_slowdown = Nan\n"); + } else { + printf("gpgpu_silicon_slowdown = %ux\n", + the_gpgpusim->g_the_gpu->shader_clock() * 1000 / cycles_per_sec); + } fflush(stdout); } -- cgit v1.3