X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/0a323c4f2393b4e58fee207abff0d2edef3ce9a3..3ae3b1a42c1305e99e39929b4bdd3d80c7f6770e:/src/smpi/smpi_bench.c

diff --git a/src/smpi/smpi_bench.c b/src/smpi/smpi_bench.c
index c91d27c562..f7464dbd2a 100644
--- a/src/smpi/smpi_bench.c
+++ b/src/smpi/smpi_bench.c
@@ -4,6 +4,7 @@
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
+#include "internal_config.h"
 #include "private.h"
 #include "xbt/dict.h"
 #include "xbt/sysdep.h"
@@ -24,6 +25,10 @@
 #include <string.h>
 #include <stdio.h>
 
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_bench, smpi,
                                 "Logging specific to SMPI (benchmarking)");
 
@@ -239,11 +244,11 @@ int smpi_gettimeofday(struct timeval *tv)
   return 0;
 }
 
-extern double sg_maxmin_precision;
+extern double sg_surf_precision;
 unsigned long long smpi_rastro_resolution (void)
 {
   smpi_bench_end();
-  double resolution = (1/sg_maxmin_precision);
+  double resolution = (1/sg_surf_precision);
   smpi_bench_begin();
   return (unsigned long long)resolution;
 }
@@ -569,7 +574,6 @@ void* smpi_shared_set_call(const char* func, const char* input, void* data) {
 
 
 
-#ifndef WIN32
 #define TOPAGE(addr) (void *)(((unsigned long)(addr) / xbt_pagesize) * xbt_pagesize)
 
 
@@ -589,11 +593,18 @@ void switch_data_segment(int dest){
 
   if (loaded_page==dest)//no need to switch either
     return;
+
+
 #ifdef HAVE_MMAP
+  int i;
+  if(loaded_page==-1){//initial switch, do the copy from the real page here
+    for (i=0; i< SIMIX_process_count(); i++){
+      memcpy(mappings[i],TOPAGE(start_data_exe),size_data_exe);
+    }
+  }
   int current= fds[dest];
   XBT_VERB("Switching data frame to the one of process %d", dest);
   void* tmp = mmap (TOPAGE(start_data_exe), size_data_exe, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED, current, 0);
-  msync(TOPAGE(start_data_exe), size_data_exe, MS_SYNC | MS_INVALIDATE );
   if (tmp != TOPAGE(start_data_exe))
     xbt_die("Couldn't map the new region");
   loaded_page=dest;
@@ -734,10 +745,10 @@ void smpi_initialize_global_memory_segments(){
 }
 
 void smpi_destroy_global_memory_segments(){
-  int i;
   if(size_data_exe == 0)//no need to switch
     return;
 #ifdef HAVE_MMAP
+  int i;
   for (i=0; i< smpi_process_count(); i++){
     if(munmap(mappings[i],size_data_exe) < 0) {
       XBT_WARN("Unmapping of fd %d failed: %s", fds[i], strerror(errno));
@@ -751,5 +762,3 @@ void smpi_destroy_global_memory_segments(){
 
 }
 
-
-#endif