Use DBL_MAX for values of type double.

[simgrid.git] / src / smpi / colls / smpi_automatic_selector.c

diff --git a/src/smpi/colls/smpi_automatic_selector.c b/src/smpi/colls/smpi_automatic_selector.c
index 083096c..ded62ec 100644 (file)
--- a/src/smpi/colls/smpi_automatic_selector.c
+++ b/src/smpi/colls/smpi_automatic_selector.c
@@ -1,30 +1,37 @@
 #include "colls_private.h"
-#include <limits.h>
 #include "mc/mc_private.h"
+#include <float.h>
 
 //attempt to do a quick autotuning version of the collective,
 
+#ifdef HAVE_TRACING
+#define TRACE_AUTO_COLL(cat) if (TRACE_is_enabled()){\
+        type_t type = PJ_type_get_or_null (#cat, PJ_type_get_root());\
+         if (!type){\
+             type=PJ_type_event_new(#cat, PJ_type_get_root());\
+         }\
+         char cont_name[25];\
+         sprintf(cont_name, "rank-%d", smpi_process_index());\
+         val_t value = PJ_value_get_or_new(mpi_coll_##cat##_description[i].name,"1.0 1.0 1.0", type);\
+         new_pajeNewEvent (SIMIX_get_clock(), PJ_container_get(cont_name), type, value);\
+      }
+#else
+#define TRACE_AUTO_COLL(cat)
+#endif
+
+
 #define AUTOMATIC_COLL_BENCH(cat, ret, args, args2)\
     ret smpi_coll_tuned_ ## cat ## _ ## automatic(COLL_UNPAREN args)\
 {\
-  double time1, time2, time_min=INT_MAX;\
+  double time1, time2, time_min=DBL_MAX;\
   int min_coll=-1, global_coll=-1;\
   int i;\
-  double buf_in, buf_out, max_min=INT_MAX;\
+  double buf_in, buf_out, max_min=DBL_MAX;\
   for (i = 0; mpi_coll_##cat##_description[i].name; i++){\
       if(!strcmp(mpi_coll_##cat##_description[i].name, "automatic"))continue;\
       if(!strcmp(mpi_coll_##cat##_description[i].name, "default"))continue;\
       smpi_mpi_barrier(comm);\
-      if (TRACE_is_enabled()){\
-        type_t type = PJ_type_get_or_null (#cat, PJ_type_get_root());\
-         if (!type){\
-             type=PJ_type_event_new(#cat, PJ_type_get_root());\
-         }\
-         char* cont_name=malloc(25*sizeof(char*));\
-         sprintf(cont_name, "rank-%d", smpi_process_index());\
-         val_t value = PJ_value_get_or_new(mpi_coll_##cat##_description[i].name,"1.0 1.0 1.0", type);\
-         new_pajeNewEvent (SIMIX_get_clock(), PJ_container_get(cont_name), type, value);\
-      }\
+      TRACE_AUTO_COLL(cat)\
       time1 = SIMIX_get_clock();\
       ((int (*) args)\
           mpi_coll_##cat##_description[i].coll) args2 ;\
@@ -43,9 +50,9 @@
       }\
   }\
   if(smpi_comm_rank(comm)==0){\
-      XBT_WARN("For rank 0, the quickest was %s : %lf , but global was %s : %lf at max",mpi_coll_##cat##_description[min_coll].name, time_min,mpi_coll_##cat##_description[global_coll].name, max_min);\
+      XBT_WARN("For rank 0, the quickest was %s : %f , but global was %s : %f at max",mpi_coll_##cat##_description[min_coll].name, time_min,mpi_coll_##cat##_description[global_coll].name, max_min);\
   }else\
-  XBT_WARN("The quickest %s was %s on rank %d and took %lf",#cat,mpi_coll_##cat##_description[min_coll].name, smpi_comm_rank(comm), time_min);\
+  XBT_WARN("The quickest %s was %s on rank %d and took %f",#cat,mpi_coll_##cat##_description[min_coll].name, smpi_comm_rank(comm), time_min);\
   return (min_coll!=-1)?MPI_SUCCESS:MPI_ERR_INTERN;\
 }\