diff options
| author | Mahmoud Khairy A. Abdallah <[email protected]> | 2020-03-26 14:11:10 -0400 |
|---|---|---|
| committer | Mahmoud Khairy A. Abdallah <[email protected]> | 2020-03-26 14:11:10 -0400 |
| commit | 024cb02ecadc58c401b9cbeb558774c6ba7415aa (patch) | |
| tree | b6072256d1872a8915a460cc3bcffd5a077d15d5 /src/gpgpu-sim | |
| parent | 5221ed98c5a7f0ceec3eb96216f4449635a74b22 (diff) | |
fixing core fetch bw
Diffstat (limited to 'src/gpgpu-sim')
| -rw-r--r-- | src/gpgpu-sim/shader.cc | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/src/gpgpu-sim/shader.cc b/src/gpgpu-sim/shader.cc index 7fc31f3..e206d9c 100644 --- a/src/gpgpu-sim/shader.cc +++ b/src/gpgpu-sim/shader.cc @@ -889,7 +889,7 @@ void shader_core_ctx::fetch() assert( status == RESERVATION_FAIL ); delete mf; } - break; + //break; } } } @@ -1067,7 +1067,18 @@ void scheduler_unit::cycle() exec_unit_type_t previous_issued_inst_exec_type = exec_unit_type_t::NONE; unsigned max_issue = m_shader->m_config->gpgpu_max_insn_issue_per_warp; bool diff_exec_units = m_shader->m_config->gpgpu_dual_issue_diff_exec_units; //In tis mode, we only allow dual issue to diff execution units (as in Maxwell and Pascal) - + + if(warp(warp_id).ibuffer_empty()) + SCHED_DPRINTF( "Warp (warp_id %u, dynamic_warp_id %u) fails as ibuffer_empty\n", + (*iter)->get_warp_id(), (*iter)->get_dynamic_warp_id() ); + + if(warp(warp_id).waiting()) + SCHED_DPRINTF( "Warp (warp_id %u, dynamic_warp_id %u) fails as waiting for barrier\n", + (*iter)->get_warp_id(), (*iter)->get_dynamic_warp_id() ); + + if((*iter)->get_warp_id() ==2 ) + printf(" Hello! I am here! \n "); + while( !warp(warp_id).waiting() && !warp(warp_id).ibuffer_empty() && (checked < max_issue) && (checked <= issued) && (issued < max_issue) ) { const warp_inst_t *pI = warp(warp_id).ibuffer_next_inst(); //Jin: handle cdp latency; @@ -1120,13 +1131,13 @@ void scheduler_unit::cycle() } } else { - bool sp_pipe_avail = m_sp_out->has_free(m_shader->m_config->sub_core_model, m_id); - bool sfu_pipe_avail = m_sfu_out->has_free(m_shader->m_config->sub_core_model, m_id); - bool tensor_core_pipe_avail = m_tensor_core_out->has_free(m_shader->m_config->sub_core_model, m_id); - bool dp_pipe_avail = m_dp_out->has_free(m_shader->m_config->sub_core_model, m_id); - bool int_pipe_avail = m_int_out->has_free(m_shader->m_config->sub_core_model, m_id); + bool sp_pipe_avail = (m_shader->m_config->gpgpu_num_sp_units > 0) && m_sp_out->has_free(m_shader->m_config->sub_core_model, m_id); + bool sfu_pipe_avail = (m_shader->m_config->gpgpu_num_sfu_units > 0) && m_sfu_out->has_free(m_shader->m_config->sub_core_model, m_id); + bool tensor_core_pipe_avail = (m_shader->m_config->gpgpu_num_tensor_core_units > 0) && m_tensor_core_out->has_free(m_shader->m_config->sub_core_model, m_id); + bool dp_pipe_avail = (m_shader->m_config->gpgpu_num_dp_units > 0) && m_dp_out->has_free(m_shader->m_config->sub_core_model, m_id); + bool int_pipe_avail = (m_shader->m_config->gpgpu_num_int_units > 0) && m_int_out->has_free(m_shader->m_config->sub_core_model, m_id); - //This code need to be refactored + //This code needs to be refactored if(pI->op != TENSOR_CORE_OP && pI->op != SFU_OP && pI->op != DP_OP) { bool execute_on_SP = false; @@ -1196,7 +1207,7 @@ void scheduler_unit::cycle() previous_issued_inst_exec_type = exec_unit_type_t::SFU; } } - else if ( (pI->op == TENSOR_CORE_OP) && !(diff_exec_units && previous_issued_inst_exec_type == exec_unit_type_t::SP) ) { + else if ( (pI->op == TENSOR_CORE_OP) && !(diff_exec_units && previous_issued_inst_exec_type == exec_unit_type_t::TENSOR) ) { if( tensor_core_pipe_avail ) { m_shader->issue_warp(*m_tensor_core_out,pI,active_mask,warp_id,m_id); issued++; |