X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/374a4cbac85a61365f57a05fe8960b9fe94dcdfd..7d4a9a7e27436e76b10c1b1f9ce794655dc070a2:/src/xbt/parmap.c

diff --git a/src/xbt/parmap.c b/src/xbt/parmap.c
index 41bf72392f..6e0a7286ac 100644
--- a/src/xbt/parmap.c
+++ b/src/xbt/parmap.c
@@ -3,7 +3,7 @@
 
 /* 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 "gras_config.h"
+#include "internal_config.h"
 #include <unistd.h>
 
 #ifndef _XBT_WIN32
@@ -12,6 +12,7 @@
 
 #ifdef HAVE_FUTEX_H
 #include <linux/futex.h>
+#include <limits.h>
 #endif
 
 #include "xbt/parmap.h"
@@ -346,7 +347,7 @@ static void xbt_parmap_posix_worker_wait(xbt_parmap_t parmap, unsigned round)
 {
   xbt_os_mutex_acquire(parmap->ready_mutex);
   /* wait for more work */
-  if (parmap->work < round) {
+  if (parmap->work != round) {
     xbt_os_cond_wait(parmap->ready_cond, parmap->ready_mutex);
   }
   xbt_os_mutex_release(parmap->ready_mutex);
@@ -383,7 +384,7 @@ static void xbt_parmap_futex_worker_signal(xbt_parmap_t parmap)
   unsigned count = __sync_add_and_fetch(&parmap->thread_counter, 1);
   if (count == parmap->num_workers) {
     /* all workers have finished, wake the controller */
-    futex_wake(&parmap->thread_counter, 1);
+    futex_wake(&parmap->thread_counter, INT_MAX);
   }
 }
 
@@ -399,7 +400,7 @@ static void xbt_parmap_futex_master_signal(xbt_parmap_t parmap)
   parmap->thread_counter = 1;
   __sync_add_and_fetch(&parmap->work, 1);
   /* wake all workers */
-  futex_wake(&parmap->work, parmap->num_workers - 1);
+  futex_wake(&parmap->work, INT_MAX);
 }
 
 /**
@@ -415,8 +416,10 @@ static void xbt_parmap_futex_worker_wait(xbt_parmap_t parmap, unsigned round)
 {
   unsigned work = parmap->work;
   /* wait for more work */
-  if (work < round)
+  while (work != round) {
     futex_wait(&parmap->work, work);
+    work = parmap->work;
+  }
 }
 #endif
 
@@ -471,7 +474,7 @@ static void xbt_parmap_busy_master_signal(xbt_parmap_t parmap)
 static void xbt_parmap_busy_worker_wait(xbt_parmap_t parmap, unsigned round)
 {
   /* wait for more work */
-  while (parmap->work < round) {
+  while (parmap->work != round) {
     xbt_os_thread_yield();
   }
 }
@@ -481,7 +484,7 @@ static void xbt_parmap_busy_worker_wait(xbt_parmap_t parmap, unsigned round)
 #include "xbt/ex.h"
 #include "xbt/xbt_os_thread.h"
 #include "xbt/xbt_os_time.h"
-#include "gras_config.h"        /* HAVE_FUTEX_H */
+#include "internal_config.h"        /* HAVE_FUTEX_H */
 
 XBT_TEST_SUITE("parmap", "Parallel Map");
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(xbt_parmap_unit);