Nathan Hjelm
e627c91227
btl/vader: add support for traditional shared memory.
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This commit adds support for placing the send memory segment in a
traditional shared memory segment when XPMEM is not available. The
current default is to reserve 4MB for shared memory on each process.
The latest benchmarks show vader performing better than sm on both
Intel and AMD CPUs.
For large messages vader will now use CMA if it is available (and
XPMEM is not).
cmr=v1.7.5:reviewer=jsquyres
This commit was SVN r30123.
2014-01-06 19:51:44 +00:00
Nathan Hjelm
b5281778b0
btl/vader: improve small message performance
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This commit improved the small message latency and bandwidth when using
the vader btl. These improvements should make performance competative
with other MPI implementations.
This commit was SVN r28760.
2013-07-11 20:54:12 +00:00
Nathan Hjelm
113fadd749
btl/vader: do not use common/sm for shared memory fragments
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This commit was SVN r28250.
2013-03-27 22:10:02 +00:00
Nathan Hjelm
4d1920ee87
Fix a bug on 32-bit systems introduced by r26626. This fix ensures that all supported btls (with exception of wv-- shiqing will need to help bring that one up to date with r26626) set the lval in prepare_src/dst when preparing a put or get segment. This fix also ensures a consistent use of lval in put and get for both local and remote segments.
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This commit was SVN r26793.
The following SVN revision numbers were found above:
r26626 --> open-mpi/ompi@249066e06d
2012-07-13 21:19:16 +00:00
Nathan Hjelm
249066e06d
Timeout! Per RFC update the BTL interface to hide segment keys. All BTLs (with the exception of wv), all relevant PMLs, and osc/rdma have been updated for the new interface.
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This commit was SVN r26626.
2012-06-21 17:09:12 +00:00
Nathan Hjelm
4e01440b05
vader: clean frag alloc/return
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This commit was SVN r26149.
2012-03-15 20:12:46 +00:00
Nathan Hjelm
d603f31976
removed ptr member from seg_key union
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This commit was SVN r25460.
2011-11-08 15:44:54 +00:00
Nathan Hjelm
520a7c570e
changes to seg_key needed for a new btl
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This commit was SVN r25445.
2011-11-06 16:19:09 +00:00
Nathan Hjelm
211e2dbdf3
clean up tab characters
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This commit was SVN r25413.
2011-11-02 15:07:57 +00:00
Nathan Hjelm
ee087de073
added fast boxes to vader
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This commit was SVN r25376.
2011-10-27 20:22:46 +00:00
Nathan Hjelm
033179d6ac
fixed bug in frag initialization
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This commit was SVN r25373.
2011-10-26 19:29:37 +00:00
Nathan Hjelm
3dbaaf6879
initial commit of vader (xpmem) btl
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This commit was SVN r25342.
2011-10-20 21:39:44 +00:00
