diff options
Diffstat (limited to 'src/gpgpu-sim/gpu-sim.cc')
| -rw-r--r-- | src/gpgpu-sim/gpu-sim.cc | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/src/gpgpu-sim/gpu-sim.cc b/src/gpgpu-sim/gpu-sim.cc index 263cbad..438769f 100644 --- a/src/gpgpu-sim/gpu-sim.cc +++ b/src/gpgpu-sim/gpu-sim.cc @@ -140,6 +140,8 @@ void power_config::reg_options(class OptionParser * opp) void memory_config::reg_options(class OptionParser * opp) { + option_parser_register(opp, "-perf_sim_memcpy", OPT_BOOL, &m_perf_sim_memcpy, + "Fill the L2 cache on memcpy", "0"); option_parser_register(opp, "-gpgpu_dram_scheduler", OPT_INT32, &scheduler_type, "0 = fifo, 1 = FR-FCFS (defaul)", "1"); option_parser_register(opp, "-gpgpu_dram_partition_queues", OPT_CSTR, &gpgpu_L2_queue_config, @@ -1598,17 +1600,20 @@ void shader_core_ctx::dump_warp_state( FILE *fout ) const void gpgpu_sim::memcpy_to_gpu( size_t dst_start_addr, const void *src, size_t count ) { - assert (dst_start_addr % 32 == 0); - // Right now - I am just going to assume you write the whole last cache line... -// assert (count % 128 == 0); - for ( unsigned counter = 0; counter < count; counter += 32 ) { - const size_t wr_addr = dst_start_addr + counter; - addrdec_t raw_addr; - mem_access_sector_mask_t mask; - mask.set(wr_addr % 128 / 32); - m_memory_config->m_address_mapping.addrdec_tlx( wr_addr, &raw_addr ); - const unsigned partition_id = raw_addr.sub_partition / m_memory_config->m_n_sub_partition_per_memory_channel; - m_memory_partition_unit[ partition_id ]->handle_memcpy_to_gpu( wr_addr, raw_addr.sub_partition, mask ); + if (m_memory_config->m_perf_sim_memcpy) { + assert (dst_start_addr % 32 == 0); + // Right now - I am just going to assume you write the whole last cache line... + // assert (count % 128 == 0); + for ( unsigned counter = 0; counter < count; counter += 32 ) { + const size_t wr_addr = dst_start_addr + counter; + addrdec_t raw_addr; + mem_access_sector_mask_t mask; + mask.set(wr_addr % 128 / 32); + m_memory_config->m_address_mapping.addrdec_tlx( wr_addr, &raw_addr ); + const unsigned partition_id = raw_addr.sub_partition / m_memory_config->m_n_sub_partition_per_memory_channel; + m_memory_partition_unit[ partition_id ]->handle_memcpy_to_gpu( wr_addr, raw_addr.sub_partition, mask ); + gpu_sim_cycle += 1; + } } } |