[mpich2-commits] r7835 - mpich2/trunk/src/pm/hydra/ui/mpich

[balaji at mcs.anl.gov]

Author: balaji
Date: 2011-01-26 10:48:16 -0600 (Wed, 26 Jan 2011)
New Revision: 7835

Modified:
   mpich2/trunk/src/pm/hydra/ui/mpich/utils.c
Log:
When the user asks for auto-cleanup to be disabled, pass appropriate
environment information to the MPICH2 library. This allows the
collectives to use the fault-tolerance enabled code which is not on by
default for now.

Reviewed by buntinas.

Modified: mpich2/trunk/src/pm/hydra/ui/mpich/utils.c
===================================================================
--- mpich2/trunk/src/pm/hydra/ui/mpich/utils.c	2011-01-26 05:45:06 UTC (rev 7834)
+++ mpich2/trunk/src/pm/hydra/ui/mpich/utils.c	2011-01-26 16:48:16 UTC (rev 7835)
@@ -1178,6 +1178,13 @@
     HYDU_append_env_to_list("GFORTRAN_UNBUFFERED_PRECONNECTED", "y",
                             &HYD_server_info.user_global.global_env.system);
 
+    /* If auto-cleanup is disabled, ask MPICH2 to enabled
+     * FT-collective returns */
+    if (HYD_server_info.user_global.auto_cleanup == 0) {
+        HYDU_append_env_to_list("MPICH_ENABLE_COLL_FT_RET", "1",
+                                &HYD_server_info.user_global.global_env.system);
+    }
+
   fn_exit:
     HYDU_FUNC_EXIT();
     return status;