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openmpi/ompi/errhandler/help-mpi-errors.txt
Jeff Squyres 4c558ed637 Enable aggregation checking for "*** An error occurred..." MPI layer
help messages so that users only see the message once instead of N
times when their MPI app crashes.

Note that there is a tradeoff here -- we now call malloc in this
particular "show the error" code path.  This shouldn't usually be a
problem, because the errors typically displayed through this mechanism
are MPI API argument problems (e.g., sending a negative count to
MPI_SEND), and not memory errors.  But such API argument errors could
be a consequence of of a prior memory error, so there's a nonzero
chance that the error failure will fail to print because malloc
failed.  In this case, the user can disable help message aggregation
(via the orte_base_want_aggregate MCA parameter) and we'll fall back
to the no-malloc code path (but without aggregation).

Note that we won't aggregate before MPI_INIT or after MPI_FINALIZE.
So if you call an MPI function before MPI_INIT / after MPI_FINALIZE,
you'll still see the error message N times.  Nothing we can do about
that; we need ORTE to do the aggregation properly (which is obviously
unavailable before MPI_INIT / after MPI_FINALIZE).

This commit was SVN r19611.
2008-09-23 17:19:24 +00:00

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# -*- text -*-
#
# Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
# University Research and Technology
# Corporation. All rights reserved.
# Copyright (c) 2004-2005 The University of Tennessee and The University
# of Tennessee Research Foundation. All rights
# reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
# University of Stuttgart. All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
# All rights reserved.
# Copyright (c) 2008 Cisco Systems, Inc. All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
# *** THESE MESSAGES ARE COORDINATED WITH FIXED STRINGS IN
# *** errhandler_predefined.c! Do not change these messages without also
# *** changing errhandler_predefined.c!
#
[mpi_errors_are_fatal]
%s *** An error occurred %s %s
%s *** on %s %s
%s *** %s
%s *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)
#
[mpi_errors_are_fatal unknown handle]
%s *** An error occurred %s %s
%s *** on a NULL %s
%s *** %s
%s *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)
#