diff options
Diffstat (limited to 'src/gpgpu-sim/dram.cc')
| -rw-r--r-- | src/gpgpu-sim/dram.cc | 47 |
1 files changed, 32 insertions, 15 deletions
diff --git a/src/gpgpu-sim/dram.cc b/src/gpgpu-sim/dram.cc index a57508c..6c11b43 100644 --- a/src/gpgpu-sim/dram.cc +++ b/src/gpgpu-sim/dram.cc @@ -199,15 +199,28 @@ dram_req_t::dram_req_t( class mem_fetch *mf, unsigned banks, unsigned dram_bnk_i const addrdec_t &tlx = mf->get_tlx_addr(); - if(dram_bnk_indexing_policy == 0) { - bk = tlx.bk; - } - else if(dram_bnk_indexing_policy == 1) { - int lbank = log2(banks); - bk = tlx.bk ^ (((1<<lbank)-1) & tlx.row); - } - else - assert(1); + switch(dram_bnk_indexing_policy){ + case LINEAR_BK_INDEX: + { + bk = tlx.bk; + break; + } + case BITWISE_XORING_BK_INDEX: + { + //xoring bank bits with lower bits of the page + int lbank = log2(banks); + bk = tlx.bk ^ (tlx.row & ((1<<lbank)-1)); + break; + } + case CUSTOM_BK_INDEX: + /* No custom set function implemented */ + //Do you custom index here + break; + default: + assert("\nUndefined bank index function.\n" && 0); + break; + } + row = tlx.row; col = tlx.col; @@ -730,13 +743,15 @@ void dram_t::print( FILE* simFile) const printf("\nwrite_to_read_ratio_blp_rw_average = %.6f", write_to_read_ratio_blp_rw_average /banks_access_rw_total); printf("\nGrpLevelPara = %.6f \n", (float)bkgrp_parallsim_rw /banks_access_rw_total); - printf("\nbwutil = %.6f \n", (float)bwutil/n_cmd); + printf("\nBW Util details:\n"); + printf("bwutil = %.6f \n", (float)bwutil/n_cmd); printf("total_CMD = %d \n", n_cmd); printf("util_bw = %d \n", util_bw); printf("Wasted_Col = %d \n", wasted_bw_col); - printf("Wasted_Row %d \n", wasted_bw_row); - printf("Idle = %d \n\n", idle_bw); + printf("Wasted_Row = %d \n", wasted_bw_row); + printf("Idle = %d \n", idle_bw); + printf("\nBW Util Bottlenecks: \n"); printf("RCDc_limit = %d \n", RCDc_limit); printf("RCDWRc_limit = %d \n", RCDWRc_limit); printf("WTRc_limit = %d \n", WTRc_limit); @@ -747,6 +762,7 @@ void dram_t::print( FILE* simFile) const printf("WTRc_limit_alone = %d \n", WTRc_limit_alone); printf("RTWc_limit_alone = %d \n", RTWc_limit_alone); + printf("\nCommands details: \n"); printf("total_CMD = %d \n", n_cmd); printf("n_nop = %d \n", n_nop); printf("Read = %d \n", n_rd); @@ -757,8 +773,9 @@ void dram_t::print( FILE* simFile) const printf("n_pre = %d \n", n_pre); printf("n_ref = %d \n", n_ref); printf("n_req = %d \n", n_req ); - printf("total_req = %d \n\n", n_rd+n_wr+n_rd_L2_A+n_wr_WB); + printf("total_req = %d \n", n_rd+n_wr+n_rd_L2_A+n_wr_WB); + printf("\nDual Bus Interface Util: \n"); printf("issued_total_row = %lu \n", issued_total_row); printf("issued_total_col = %lu \n", issued_total_col); printf("Row_Bus_Util = %.6f \n", (float)issued_total_row / n_cmd); @@ -879,10 +896,10 @@ void dram_t::set_dram_power_stats( unsigned &cmd, unsigned dram_t::get_bankgrp_number(unsigned i) { - if(m_config->dram_bnkgrp_indexing_policy == 0) { //higher bits + if(m_config->dram_bnkgrp_indexing_policy == HIGHER_BITS) { //higher bits return i>>m_config->bk_tag_length; } - else if (m_config->dram_bnkgrp_indexing_policy == 1) { //lower bits + else if (m_config->dram_bnkgrp_indexing_policy == LOWER_BITS) { //lower bits return i&((m_config->nbkgrp-1)); } else { |