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openib btl: APM and async events support #31

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ompiteam opened this issue Oct 1, 2014 · 5 comments
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openib btl: APM and async events support #31

ompiteam opened this issue Oct 1, 2014 · 5 comments
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@ompiteam
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ompiteam commented Oct 1, 2014

APM support should always be in a background thread so that it can be handled ASAP. The async event handler can be a bit lazier.

For v1.3, the async handler and APM handler are always off in a separate progression thread. For v1.3.1, we should change this strategy:

  • The async handler should use the openib_fd stuff, such that it will be off in its own thread in the case of HAVE_THREAD_SUPPORT. Otherwise, it uses libevent and is called back in the usual single-threaded model.
  • The APM handler should use the openib fd stuff in the case of HAVE_THREAD_SUPPORT, but otherwise should fork off its own thread.
@ompiteam ompiteam added this to the Future milestone Oct 1, 2014
@ompiteam ompiteam added the bug label Oct 1, 2014
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ompiteam commented Oct 1, 2014

Imported from trac issue 1240. Created by jsquyres on 2008-03-11T17:27:21, last modified: 2008-06-01T07:47:34

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ompiteam commented Oct 1, 2014

Trac comment by jsquyres on 2008-05-29 20:14:33:

Pasha -- since basic APM support is in, is this a 1.3 ticket?

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ompiteam commented Oct 1, 2014

Trac comment by pasha on 2008-06-01 05:39:11:

Jeff,
The ticket is not about APM support it is about how we want to handle ASYNC events.
If I remember correct we wanted to merge all thread in single one. I still not completely sure that it is good idea. Anyway this ticket should not be blocker.

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ompiteam commented Oct 1, 2014

Trac comment by jsquyres on 2008-06-01 07:47:34:

You're right -- I didn't read the ticket closely (just keyed in on "APM" in the title). This will require more discussion -- let's move it to v1.4.

yosefe pushed a commit to yosefe/ompi that referenced this issue Mar 5, 2015
@mike-dubman
Merge pull request open-mpi#31 from miked-mellanox/topic/mkey_recursi…
0b11649 
…on_fix

OSHMEM: fix infinite recursion
lrrajesh pushed a commit to lrrajesh/ompi that referenced this issue Mar 19, 2015
@vpedabal
Nodepower plugin
e545ebe 
Fixes open-mpi#31
@gonnetp gonnetp mentioned this issue Oct 31, 2018
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@hjelmn hjelmn mentioned this issue Jan 15, 2019
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devreal added a commit to devreal/ompi that referenced this issue Sep 9, 2020
@devreal
ADAPT: use the correct nbc request type (open-mpi#31)
5c271b9 
* ADAPT: use the correct nbc request type
* coll/base: document type casts in ompi_coll_base_retain_*

Signed-off-by: Joseph Schuchart <[email protected]>
@bosilca bosilca mentioned this issue Sep 9, 2020
Merged
devreal pushed a commit to devreal/ompi that referenced this issue Sep 11, 2020
@bosilca
Fix ADAPT for few corner cases
b0de06f 
Add support for fallback to previous coll module on non-commutative operations (open-mpi#30)
Replace mutexes by atomic operations.
Use the correct nbc request type (open-mpi#31)
* coll/base: document type casts in ompi_coll_base_retain_*
Other minor fixes.

Signed-off-by: George Bosilca <[email protected]>
Signed-off-by: Joseph Schuchart <[email protected]>
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Openib btl is removed. Closing.

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