diff options
Diffstat (limited to 'src/cuda-sim/cuda-sim.cc')
| -rw-r--r-- | src/cuda-sim/cuda-sim.cc | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/cuda-sim/cuda-sim.cc b/src/cuda-sim/cuda-sim.cc index d4ace76..39a04dd 100644 --- a/src/cuda-sim/cuda-sim.cc +++ b/src/cuda-sim/cuda-sim.cc @@ -212,7 +212,9 @@ void function_info::ptx_assemble() m_start_PC = PC; addr_t n=0; // offset in m_instr_mem - s_g_pc_to_insn.reserve(s_g_pc_to_insn.size() + MAX_INST_SIZE*m_instructions.size()); + //Why s_g_pc_to_insn.size() is needed to reserve additional memory for insts? reserve is cumulative. + //s_g_pc_to_insn.reserve(s_g_pc_to_insn.size() + MAX_INST_SIZE*m_instructions.size()); + s_g_pc_to_insn.reserve(MAX_INST_SIZE*m_instructions.size()); for ( i=m_instructions.begin(); i != m_instructions.end(); i++ ) { ptx_instruction *pI = *i; if ( pI->is_label() ) { @@ -255,6 +257,8 @@ void function_info::ptx_assemble() fflush(stdout); printf("GPGPU-Sim PTX: finding reconvergence points for \'%s\'...\n", m_name.c_str() ); + //disable pdom analysis here and do it at runtime +#if 0 create_basic_blocks(); connect_basic_blocks(); bool modified = false; @@ -278,6 +282,7 @@ void function_info::ptx_assemble() print_postdominators(); print_ipostdominators(); } +#endif printf("GPGPU-Sim PTX: pre-decoding instructions for \'%s\'...\n", m_name.c_str() ); for ( unsigned ii=0; ii < n; ii += m_instr_mem[ii]->inst_size() ) { // handle branch instructions @@ -1799,6 +1804,15 @@ void gpgpu_cuda_ptx_sim_main_func( kernel_info_t &kernel, bool openCL ) //using a shader core object for book keeping, it is not needed but as most function built for performance simulation need it we use it here extern gpgpu_sim *g_the_gpu; + //before we execute, we should do PDOM analysis for functional simulation scenario. + function_info *kernel_func_info = kernel.entry(); + if (kernel_func_info->is_pdom_set()) { + printf("GPGPU-Sim PTX: PDOM analysis already done for %s \n", kernel.name().c_str() ); + } else { + printf("GPGPU-Sim PTX: finding reconvergence points for \'%s\'...\n", kernel.name().c_str() ); + kernel_func_info->do_pdom(); + kernel_func_info->set_pdom(); + } //we excute the kernel one CTA (Block) at the time, as synchronization functions work block wise while(!kernel.no_more_ctas_to_run()){ |