Change 253 by jain156@akshayj-lt1 on 2017/05/30 00:40:03

Replaced the mem div stats with mem div histogram

2 files changed, 10 insertions, 7 deletions

diff --git a/src/gpgpu-sim/shader.cc b/src/gpgpu-sim/shader.cc
index 72e0266..e7204c8 100644
--- a/src/gpgpu-sim/shader.cc
+++ b/src/gpgpu-sim/shader.cc
@@ -438,8 +438,9 @@ void shader_core_stats::print( FILE* fout ) const
     fprintf(fout,"gpgpu_n_mem_texture = %d\n", gpgpu_n_mem_texture);
     fprintf(fout,"gpgpu_n_mem_const = %d\n", gpgpu_n_mem_const);
 
-    fprintf(fout,"gpgpu_n_times_gmem_accesses_by_warps = %lld\n", gpgpu_n_times_gmem_accesses_by_warps);
-    fprintf(fout,"gpgpu_n_total_gmem_accesses_by_warps = %lld\n", gpgpu_n_total_gmem_accesses_by_warps);
+    fprintf(fout,"gpgpu_mem_divergence_hist ");
+    gpgpu_mem_divergence_hist->fprint(fout);
+    fprintf(fout,"\n");
 
    fprintf(fout, "gpgpu_n_load_insn  = %d\n", gpgpu_n_load_insn);
    fprintf(fout, "gpgpu_n_store_insn = %d\n", gpgpu_n_store_insn);
@@ -749,8 +750,7 @@ void shader_core_ctx::func_exec_inst( warp_inst_t &inst )
         starting_queue_size = inst.accessq_count();
         inst.generate_mem_accesses();
         if ( inst.space.get_type() == global_space ) {
-            m_stats->gpgpu_n_times_gmem_accesses_by_warps++;
-            m_stats->gpgpu_n_total_gmem_accesses_by_warps += inst.accessq_count() - starting_queue_size;
+            m_stats->gpgpu_mem_divergence_hist->add2bin(inst.accessq_count() - starting_queue_size);
         }
 }
 
diff --git a/src/gpgpu-sim/shader.h b/src/gpgpu-sim/shader.h
index 2475677..45658ac 100644
--- a/src/gpgpu-sim/shader.h
+++ b/src/gpgpu-sim/shader.h
@@ -53,6 +53,8 @@
 #include "stats.h"
 #include "gpu-cache.h"
 #include "traffic_breakdown.h"
+#include "histogram.h"
+
 
 
 
@@ -1471,9 +1473,8 @@ struct shader_core_stats_pod {
     int gpgpu_n_mem_write_global;
     int gpgpu_n_mem_read_inst;
 
-    //warps memory divergence count
-    unsigned long long gpgpu_n_times_gmem_accesses_by_warps;
-    unsigned long long gpgpu_n_total_gmem_accesses_by_warps;
+    //warps combined memory divergence histogram
+    linear_histogram* gpgpu_mem_divergence_hist;
     
     int gpgpu_n_mem_l2_writeback;
     int gpgpu_n_mem_l1_write_allocate; 
@@ -1543,6 +1544,7 @@ public:
         m_incoming_traffic_stats = new traffic_breakdown("memtocore"); 
 
         gpgpu_n_shmem_bank_access = (unsigned *)calloc(config->num_shader(), sizeof(unsigned));
+        gpgpu_mem_divergence_hist = new linear_histogram(1, "", config->warp_size+1);
 
         m_shader_dynamic_warp_issue_distro.resize( config->num_shader() );
         m_shader_warp_slot_issue_distro.resize( config->num_shader() );
@@ -1557,6 +1559,7 @@ public:
         free(m_n_diverge); 
         free(shader_cycle_distro);
         free(last_shader_cycle_distro);
+        free(gpgpu_mem_divergence_hist);
     }
 
     void new_grid()