[mpich2-commits] r7799 - mpich2/trunk

[balaji at mcs.anl.gov]

Author: balaji
Date: 2011-01-20 22:16:00 -0600 (Thu, 20 Jan 2011)
New Revision: 7799

Modified:
   mpich2/trunk/README.vin
Log:
Added a note in the README about the MPICH_ATTR_FAILED_PROCESSES being
only available on MPI_COMM_WORLD.

Modified: mpich2/trunk/README.vin
===================================================================
--- mpich2/trunk/README.vin	2011-01-20 23:47:13 UTC (rev 7798)
+++ mpich2/trunk/README.vin	2011-01-21 04:16:00 UTC (rev 7799)
@@ -768,10 +768,10 @@
    returning MPI_SUCCESS on a given process means that the part of the
    collective performed by that process has been successful.
 
-      MPICH2 release specific note: There is currently a bug in MPICH2
-         that might cause the collective operation to return
-         MPI_SUCCESS on a process even if data is corrupted on that
-         process.
+       MPICH2 release specific note: There is currently a bug in
+       MPICH2 that might cause the collective operation to return
+       MPI_SUCCESS on a process even if data is corrupted on that
+       process.
 
  - PROCESS MANAGER: If used with the hydra process manager, hydra will
    detect failed processes and notify the MPICH2 library.  Users can
@@ -780,14 +780,18 @@
    The attribute value is an integer array containing the ranks of the
    failed processes.  The array is terminated by MPI_PROC_NULL.
 
-      MPICH2 release specific note: The user needs to declare the
-         following extern within the application in order to use the
-         attribute (this ideally should be added to mpi.h, but has not
-         been done so, to preserve ABI compatibility in the 1.3.x
-         release series):
+       MPICH2 release specific note: The user needs to declare the
+       following extern within the application in order to use the
+       attribute (this ideally should be added to mpi.h, but has not
+       been done so, to preserve ABI compatibility in the 1.3.x
+       release series):
 
              extern int MPICH_ATTR_FAILED_PROCESSES;
 
+       MPICH2 release specific note: The MPICH_ATTR_FAILED_PROCESSES
+       attribute is currently only defined on MPI_COMM_WORLD, but not
+       on other communicators.
+
    Note that hydra by default will abort the entire application when
    any process terminates before calling MPI_Finalize.  In order to
    allow an application to continue running despite failed processes,
@@ -805,10 +809,10 @@
    signal handler.
 
    In future releases, the plan is to provide a call such as
-   MPIX_Failure_notification that will allow the user to register a
-   callback function that will be called on process failures. This
-   mechanism has not been added yet to preserve ABI compatibility in
-   the 1.3.x release series.
+   MPIX_Failure_notify that will allow the user to register a callback
+   function that will be called on process failures. This mechanism
+   has not been added yet to preserve ABI compatibility in the 1.3.x
+   release series.
 
 
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