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.
37 строки
959 B
Plaintext
37 строки
959 B
Plaintext
# -*- text -*-
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#
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# Copyright (c) 2008 Cisco Systems, Inc. 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 OpenFabrics IB CM
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# support (the openib BTL).
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#
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[unhandled error]
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The InfiniBand Connection Manager (IBCM) received an unexpected error
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when it attempted to send a connection %s. Your MPI job is
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likely to hang or crash; sorry.
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Local host: %s
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Error code: %d
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#
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[timeout not found]
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The InfiniBand Connection Manager (IBCM) timed out when sending a
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connection %s, but Open MPI was unable to find a matching send
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request. This should not happen. Your MPI job is likely to hang or
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crash; sorry.
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Local host: %s
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Host: %s
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#
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[cannot raise btl error]
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The InfiniBand Connection Manager (IBCM) failed in some way, but is
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unable to find a way to raise an error properly. This should not
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happen. Your MPI job is likely to crash or hang, sorry.
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Local host: %s
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