diff options
Diffstat (limited to 'src/gpgpu-sim/shader.cc')
| -rw-r--r-- | src/gpgpu-sim/shader.cc | 39 |
1 files changed, 28 insertions, 11 deletions
diff --git a/src/gpgpu-sim/shader.cc b/src/gpgpu-sim/shader.cc index 12ea9d8..3db988b 100644 --- a/src/gpgpu-sim/shader.cc +++ b/src/gpgpu-sim/shader.cc @@ -440,11 +440,12 @@ void shader_core_ctx::reinit(unsigned start_thread, unsigned end_thread, bool re } } -void shader_core_ctx::init_warps( unsigned cta_id, unsigned start_thread, unsigned end_thread ) +void shader_core_ctx::init_warps( unsigned cta_id, unsigned start_thread, unsigned end_thread, unsigned ctaid, int cta_size, unsigned kernel_id ) { address_type start_pc = next_pc(start_thread); if (m_config->model == POST_DOMINATOR) { unsigned start_warp = start_thread / m_config->warp_size; + unsigned warp_per_cta = cta_size / m_config->warp_size; unsigned end_warp = end_thread / m_config->warp_size + ((end_thread % m_config->warp_size)? 1 : 0); for (unsigned i = start_warp; i < end_warp; ++i) { unsigned n_active=0; @@ -459,6 +460,21 @@ void shader_core_ctx::init_warps( unsigned cta_id, unsigned start_thread, unsign } } m_simt_stack[i]->launch(start_pc,active_threads); + + if(m_gpu->resume_option==1 && kernel_id==m_gpu->resume_kernel && ctaid>=m_gpu->resume_CTA && ctaid<m_gpu->checkpoint_CTA_t ) + { + char fname[2048]; + snprintf(fname,2048,"checkpoint_files/warp_%d_%d_simt.txt",i%warp_per_cta,ctaid ); + unsigned pc,rpc; + m_simt_stack[i]->resume(fname); + m_simt_stack[i]->get_pdom_stack_top_info(&pc,&rpc); + for (unsigned t = 0; t < m_config->warp_size; t++) { + m_thread[i * m_config->warp_size + t]->set_npc(pc); + m_thread[i * m_config->warp_size + t]->update_pc(); + } + start_pc=pc; + } + m_warp[i].init(start_pc,cta_id,i,active_threads, m_dynamic_warp_id); ++m_dynamic_warp_id; m_not_completed += n_active; @@ -3508,19 +3524,20 @@ int register_bank(int regnum, int wid, unsigned num_banks, unsigned bank_warp_sh return bank % num_banks; } -bool opndcoll_rfu_t::writeback( const warp_inst_t &inst ) +bool opndcoll_rfu_t::writeback( warp_inst_t &inst ) { assert( !inst.empty() ); std::list<unsigned> regs = m_shader->get_regs_written(inst); - std::list<unsigned>::iterator r; - unsigned n=0; - for( r=regs.begin(); r!=regs.end();r++,n++ ) { - unsigned reg = *r; - unsigned bank = register_bank(reg,inst.warp_id(),m_num_banks,m_bank_warp_shift, sub_core_model, m_num_banks_per_sched, inst.get_schd_id()); - if( m_arbiter.bank_idle(bank) ) { - m_arbiter.allocate_bank_for_write(bank,op_t(&inst,reg,m_num_banks,m_bank_warp_shift, sub_core_model, m_num_banks_per_sched, inst.get_schd_id())); - } else { - return false; + for( unsigned op=0; op < MAX_REG_OPERANDS; op++ ) { + int reg_num = inst.arch_reg.dst[op]; // this math needs to match that used in function_info::ptx_decode_inst + if( reg_num >= 0 ){ // valid register + unsigned bank = register_bank(reg_num,inst.warp_id(),m_num_banks,m_bank_warp_shift, sub_core_model, m_num_banks_per_sched, inst.get_schd_id()); + if( m_arbiter.bank_idle(bank) ) { + m_arbiter.allocate_bank_for_write(bank,op_t(&inst,reg_num,m_num_banks,m_bank_warp_shift, sub_core_model, m_num_banks_per_sched, inst.get_schd_id())); + inst.arch_reg.dst[op] = -1; + } else { + return false; + } } } for(unsigned i=0;i<(unsigned)regs.size();i++){ |