openmpi/ompi/mca/common/sm/help-mpi-common-sm.txt

# -*- text -*-
#
# Copyright (c) 2009-2010 Cisco Systems, Inc.  All rights reserved.
# Copyright (c) 2010-2011 Los Alamos National Security, LLC.
#                         All rights reserved.
#
# $COPYRIGHT$
# 
# Additional copyrights may follow
# 
# $HEADER$
#
# This is the US/English help file for Open MPI's common shmem support.
#
[mmap too small]
Open MPI requested a shared memory segment that was too small to do
anything useful.  This is likely an error in Open MPI itself.  If you
see this error, you should see if there is an update available for
Open MPI, and if not, contact the Open MPI developers.

  Local host:        %s
  Requested size:    %ul
  Control seg size:  %ul
  Data seg aligment: %ul
Refs trac:2023, #2027. This commit does a bunch of things: * Address all remaining code review items from CMR #2023: * Defer mmap setup to be lazy; only set it up the first time we invoke a collective. In this way, we don't penalize apps that make lots of communicators but don't invoke collectives on them (per #2027). * Remove the extra assignments of mca_coll_sm_one (fixing a convertor count setup that was the real problem). * Remove another extra/unnecessary assignment. * Increase libevent polling frequency when using the RML to bootstrap mmap'ed memory. * Fix a minor procs-related memory leak in btl_sm. * Commit a datatype fix that George and I discovered along the way to fixing the coll sm. * Improve error messages when mmap fails, potentially trying to de-alloc any allocated memory when that happens. * Fix a previously-unnoticed confusion between extent and true_extent in coll sm reduce. This commit was SVN r22049. The following Trac tickets were found above: Ticket 2023 --> https://svn.open-mpi.org/trac/ompi/ticket/2023 2009-10-02 17:13:56 +00:00			`# -- text --`
			`#`
- Incorporated a rewording proposal by Jeff. This commit was SVN r22670. 2010-02-19 14:37:09 +00:00			`# Copyright (c) 2009-2010 Cisco Systems, Inc. All rights reserved.`
commit of new shared memory backing facility framework (shmem) and its components. This commit was SVN r24795. 2011-06-21 15:41:57 +00:00			`# Copyright (c) 2010-2011 Los Alamos National Security, LLC.`
Added a new System V (sysv) shared memory component for Open MPI. Configure Option: --enable-sysv MCA Parameter: mpi_common_sm mpi_common_sm accepts a comma delimited list of: [sysv],mmap (order dependent). The first component that is successfully selected is used. For example, -mca mpi_common_sm sysv,mmap will first try sysv. If sysv is not successfully selected, then mmap will be used. mmap will be used if mpi_common_sm is not provided. Notes: Please make certain that your system's shmmax limit, or equivalent, is larger than mpool_sm_min_size. Otherwise, shmget may fail. This commit was SVN r23260. 2010-06-09 16:58:52 +00:00			`# All rights reserved.`
Refs trac:2023, #2027. This commit does a bunch of things: * Address all remaining code review items from CMR #2023: * Defer mmap setup to be lazy; only set it up the first time we invoke a collective. In this way, we don't penalize apps that make lots of communicators but don't invoke collectives on them (per #2027). * Remove the extra assignments of mca_coll_sm_one (fixing a convertor count setup that was the real problem). * Remove another extra/unnecessary assignment. * Increase libevent polling frequency when using the RML to bootstrap mmap'ed memory. * Fix a minor procs-related memory leak in btl_sm. * Commit a datatype fix that George and I discovered along the way to fixing the coll sm. * Improve error messages when mmap fails, potentially trying to de-alloc any allocated memory when that happens. * Fix a previously-unnoticed confusion between extent and true_extent in coll sm reduce. This commit was SVN r22049. The following Trac tickets were found above: Ticket 2023 --> https://svn.open-mpi.org/trac/ompi/ticket/2023 2009-10-02 17:13:56 +00:00			`#`
			`# $COPYRIGHT$`
			`#`
			`# Additional copyrights may follow`
			`#`
			`# $HEADER$`
			`#`
			`# This is the US/English help file for Open MPI's common shmem support.`
			`#`
			`[mmap too small]`
			`Open MPI requested a shared memory segment that was too small to do`
			`anything useful. This is likely an error in Open MPI itself. If you`
			`see this error, you should see if there is an update available for`
			`Open MPI, and if not, contact the Open MPI developers.`

			`Local host: %s`
			`Requested size: %ul`
			`Control seg size: %ul`
			`Data seg aligment: %ul`