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6 Коммитов

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Nathan Hjelm
0849d61e38 btl/vader: improve performance under heavy load and eliminate a racy
feature

This commit should fix a hang seen when running some of the one-sided
tests. The downside of this fix is it reduces the maximum size of the
messages that use the fast boxes. I will fix this in a later commit.

To improve performance under a heavy load I introduced sequencing to
ensure messages are given to the pml in order. I have seen little-no
impact on the message rate or latency with this change and there is a
clear improvement to the heavy message rate case.

Lets let this sit in the trunk for a couple of days to ensure that
everything is working correctly.

cmr=v1.8.2:reviewer=jsquyres

This commit was SVN r31522.
2014-04-24 17:36:03 +00:00
Nathan Hjelm
84320f3815 btl/vader: fix compilation with SGI xpmem and add some debugging to
component_init.

cmr=v1.7.5:ticker=#4053

This commit was SVN r30535.
2014-02-03 17:42:40 +00:00
Nathan Hjelm
e627c91227 btl/vader: add support for traditional shared memory.
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
113fadd749 btl/vader: do not use common/sm for shared memory fragments
This commit was SVN r28250.
2013-03-27 22:10:02 +00:00
Nathan Hjelm
211e2dbdf3 clean up tab characters
This commit was SVN r25413.
2011-11-02 15:07:57 +00:00
Nathan Hjelm
3dbaaf6879 initial commit of vader (xpmem) btl
This commit was SVN r25342.
2011-10-20 21:39:44 +00:00