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4 Коммитов

Автор SHA1 Сообщение Дата
George Bosilca
f39abb9e69 Reverting r32355: a number of processes is not a notion that a low level
communication library should use to initialize itself.

Ralph will champion this change back with an RFC if there is a realistic
need/use case from the community.

This commit was SVN r32361.

The following SVN revision numbers were found above:
  r32355 --> open-mpi/ompi@c903917f47
2014-07-30 20:11:35 +00:00
Ralph Castain
c903917f47 Expose the num_procs information to the opal layer as the info is needed in several BTLs
This commit was SVN r32355.
2014-07-30 09:33:41 +00:00
George Bosilca
a3feb627cf Move some of the ompi_process_info down in OPAL.
This commit was SVN r32324.
2014-07-26 21:43:34 +00:00
Ralph Castain
552c9ca5a0 George did the work and deserves all the credit for it. Ralph did the merge, and deserves whatever blame results from errors in it :-)
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.
2014-07-26 00:47:28 +00:00