2fb7c344fc
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.
75 строки
2.5 KiB
Plaintext
75 строки
2.5 KiB
Plaintext
# -*- text -*-
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#
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# Copyright (c) 2009-2010 Cisco Systems, Inc. All rights reserved.
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# Copyright (c) 2010 Los Alamos National Security, LLC.
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# All rights reserved.
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#
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# $COPYRIGHT$
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#
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# Additional copyrights may follow
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#
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# $HEADER$
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#
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# This is the US/English help file for Open MPI's common shmem support.
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#
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[sys call fail]
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A system call failed during shared memory initialization that should
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not have. It is likely that your MPI job will now either abort or
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experience performance degradation.
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Local host: %s
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System call: %s %s
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Process: %s
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Error: %s (errno %d)
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#
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[shmget call fail]
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A shmget call failed during shared memory initialization that should
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not have. It is likely that your MPI job will now either abort or
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experience performance degradation.
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Local host: %s
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System call: %s
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Process: %s
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Error: %s (errno %d)
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Please verify that your system's shmax limit, or equivalent, is larger than
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%d. On some Unix-like systems this can be done via: "sysctl -a | grep shm"
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#
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[mmap too small]
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Open MPI requested a shared memory segment that was too small to do
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anything useful. This is likely an error in Open MPI itself. If you
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see this error, you should see if there is an update available for
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Open MPI, and if not, contact the Open MPI developers.
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Local host: %s
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Requested size: %ul
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Control seg size: %ul
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Data seg aligment: %ul
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#
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[mmap on nfs]
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WARNING: Open MPI will create a shared memory backing file in a
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directory that appears to be mounted on a network filesystem.
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Creating the shared memory backup file on a network file system, such
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as NFS or Lustre is not recommended -- it may cause excessive network
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traffic to your file servers and/or cause shared memory traffic in
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Open MPI to be much slower than expected.
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You may want to check what the typical temporary directory is on your
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node. Possible sources of the location of this temporary directory
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include the $TEMPDIR, $TEMP, and $TMP environment variables.
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Note, too, that system administrators can set a list of filesystems
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where Open MPI is disallowed from creating temporary files by settings
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the MCA parameter "orte_no_session_dir".
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Local host: %s
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Fileame: %s
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#
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[sm support]
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WARNING: "%s" not recognized - ignoring option. Suppressing additional
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unrecognized option warnings.
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#
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[sysv rt test fail]
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WARNING: It appears as if your system does not provide the run-time behavior
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that we rely on to safely provide System V shared memory support.
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