552c9ca5a0
WHAT: Open our low-level communication infrastructure by moving all necessary components (btl/rcache/allocator/mpool) down in OPAL All the components required for inter-process communications are currently deeply integrated in the OMPI layer. Several groups/institutions have express interest in having a more generic communication infrastructure, without all the OMPI layer dependencies. This communication layer should be made available at a different software level, available to all layers in the Open MPI software stack. As an example, our ORTE layer could replace the current OOB and instead use the BTL directly, gaining access to more reactive network interfaces than TCP. Similarly, external software libraries could take advantage of our highly optimized AM (active message) communication layer for their own purpose. UTK with support from Sandia, developped a version of Open MPI where the entire communication infrastucture has been moved down to OPAL (btl/rcache/allocator/mpool). Most of the moved components have been updated to match the new schema, with few exceptions (mainly BTLs where I have no way of compiling/testing them). Thus, the completion of this RFC is tied to being able to completing this move for all BTLs. For this we need help from the rest of the Open MPI community, especially those supporting some of the BTLs. A non-exhaustive list of BTLs that qualify here is: mx, portals4, scif, udapl, ugni, usnic. This commit was SVN r32317.
93 строки
3.0 KiB
Plaintext
93 строки
3.0 KiB
Plaintext
# -*- text -*-
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#
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# Copyright (c) 2004-2009 The University of Tennessee and The University
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# of Tennessee Research Foundation. All rights
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# reserved.
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# Copyright (c) 2006-2010 Cisco Systems, Inc. All rights reserved.
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# Copyright (c) 2012-2013 Los Alamos National Security, LLC.
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# All rights reserved.
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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 shared memory support.
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#
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[sys call fail]
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A system call failed during sm BTL 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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System call: %s
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Error: %s (errno %d)
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#
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[no locality]
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WARNING: Missing locality information required for sm initialization.
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Continuing without shared memory support.
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#
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[knem requested but not supported]
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WARNING: Linux kernel knem support was requested for the shared memory
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(sm) BTL, but it is not supported. Deactivating the shared memory
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BTL.
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Local host: %s
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#
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[knem permission denied]
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Open MPI failed to open the /dev/knem device due to a permissions
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problem. Please check with your system administrator to get the
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permissions fixed, or set the btl_sm_use_knem MCA parameter to 0 to
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run without /dev/knem support.
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Local host: %s
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/dev/knem permissions: 0%o
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#
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[knem fail open]
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Open MPI failed to open the /dev/knem device due to a local error.
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Please check with your system administrator to get the problem fixed,
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or set the btl_sm_use_knem MCA parameter to 0 to run without /dev/knem
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support.
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Local host: %s
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Errno: %d (%s)
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#
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[knem get ABI fail]
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Open MPI failed to retrieve the ABI version from the /dev/knem device
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due to a local error. This usually indicates an error in your
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/dev/knem installation; please check with your system administrator,
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or set the btl_sm_use_knem MCA parameter to 0 to run without /dev/knem
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support.
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Local host: %s
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Errno: %d (%s)
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#
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[knem ABI mismatch]
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Open MPI was compiled with support for one version of the knem kernel
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module, but it discovered a different version running in /dev/knem.
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Open MPI needs to be installed with support for the same version of
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knem as is in the running Linux kernel. Please check with your system
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administrator, or set the btl_sm_use_knem MCA parameter to 0 to run
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without /dev/knem support.
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Local host: %s
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Open MPI's knem version: 0x%x
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/dev/knem's version: 0x%x
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#
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[knem mmap fail]
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Open MPI failed to map support from the knem Linux kernel module; this
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shouldn't happen. Please check with your system administrator, or set
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the btl_sm_use_knem MCA parameter to 0 to run without /dev/knem support.
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Local host: %s
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System call: mmap()
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Errno: %d (%s)
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#
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[knem init error]
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Open MPI encountered an error during the knem initialization. Please
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check with your system administrator, or set the btl_sm_use_knem MCA
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parameter to 0 to run without /dev/knem support.
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Local host: %s
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System call: %s
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Errno: %d (%s)
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