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Subject: Re: [OMPI devel] RFC: sm BTL Initialization via Modex
From: Gutierrez, Samuel K (samuel_at_[hidden])
Date: 2012-08-07 10:34:23


This may be useful.

Attached is a patch tarball with the updates - may make quick reviews easier.

Thanks,

Sam

On Aug 6, 2012, at 3:23 PM, Gutierrez, Samuel K wrote:

> Thanks, Jeff.
>
> FWIW, I just finished testing with knem support enabled. Looks good.
>
> Sam
>
> On Aug 6, 2012, at 2:21 PM, Jeff Squyres wrote:
>
>> I've run this hg tree with the intel, IBM, and IMB suites on a Romley server with 20 cores for NP values of 2,3,4,...,19,20. The only failures were the IBM spawn tests (which are expected, because I ran with "--mca btl sm,self").
>>
>> So -- +1 on this from me (disclaimer: I haven't looked at the code).
>>
>>
>> On Aug 5, 2012, at 6:38 AM, Gutierrez, Samuel K wrote:
>>
>>> WHAT:
>>>
>>> The majority of the code required to get away from explicit RML usage during
>>> shared memory initialization is complete. With this update, the sm BTL and sm
>>> mpool modex around the information required for setup.
>>>
>>> I've completed some initial testing and everything seems to be working
>>> properly, but additional testing and feedback is greatly appreciated -- and
>>> almost certainly required.
>>>
>>> Things that haven't been tested:
>>> o The sm BTL with progress threads enabled (OMPI_ENABLE_PROGRESS_THREADS).
>>> o The sm BTL with any kernel assistance enabled.
>>>
>>> WHY: In preparation for the eventual BTL move.
>>>
>>> WHERE:
>>> M opal/mca/shmem/posix/shmem_posix_module.c
>>> M opal/mca/shmem/sysv/shmem_sysv_module.c
>>> M opal/mca/shmem/mmap/shmem_mmap_module.c
>>> M opal/mca/shmem/windows/shmem_windows_module.c
>>> M ompi/mca/btl/sm/btl_sm.c
>>> M ompi/mca/btl/sm/btl_sm_component.c
>>> M ompi/mca/btl/sm/help-mpi-btl-sm.txt
>>> M ompi/mca/btl/sm/btl_sm.h
>>> M ompi/mca/btl/sm/btl_sm_fifo.h
>>> M ompi/mca/mpool/sm/mpool_sm_component.c
>>> M ompi/mca/mpool/sm/mpool_sm.h
>>> M ompi/mca/common/sm/common_sm.c
>>> M ompi/mca/common/sm/common_sm.h
>>>
>>> The majority of changes that most will care about are in btl/sm/* and mpool/sm/*
>>>
>>> The branch can be found:
>>> https://bitbucket.org/samuelkgutierrez/rmllesssm
>>>
>>> TIMEOUT: If everything looks okay, Aug 10, 2012. If not, some time after issues
>>> have been resolved.
>>>
>>> Thanks,
>>>
>>> Sam
>>>
>>> _______________________________________________
>>> devel mailing list
>>> devel_at_[hidden]
>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>
>>
>> --
>> Jeff Squyres
>> jsquyres_at_[hidden]
>> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
>>
>>
>> _______________________________________________
>> devel mailing list
>> devel_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>
>
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