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Subject: Re: [OMPI users] btl_openib_cpc_include rdmacm questions
From: Samuel K. Gutierrez (samuel_at_[hidden])
Date: 2011-05-16 10:23:30


Hi,

Just out of curiosity - what happens when you add the following MCA option to your openib runs?

-mca btl_openib_flags 305

Thanks,

Samuel Gutierrez
Los Alamos National Laboratory

On May 13, 2011, at 2:38 PM, Brock Palen wrote:

> On May 13, 2011, at 4:09 PM, Dave Love wrote:
>
>> Jeff Squyres <jsquyres_at_[hidden]> writes:
>>
>>> On May 11, 2011, at 3:21 PM, Dave Love wrote:
>>>
>>>> We can reproduce it with IMB. We could provide access, but we'd have to
>>>> negotiate with the owners of the relevant nodes to give you interactive
>>>> access to them. Maybe Brock's would be more accessible? (If you
>>>> contact me, I may not be able to respond for a few days.)
>>>
>>> Brock has replied off-list that he, too, is able to reliably reproduce the issue with IMB, and is working to get access for us. Many thanks for your offer; let's see where Brock's access takes us.
>>
>> Good. Let me know if we could be useful
>>
>>>>> -- we have not closed this issue,
>>>>
>>>> Which issue? I couldn't find a relevant-looking one.
>>>
>>> https://svn.open-mpi.org/trac/ompi/ticket/2714
>>
>> Thanks. In csse it's useful info, it hangs for me with 1.5.3 & np=32 on
>> connectx with more than one collective I can't recall.
>
> Extra data point, that ticket said it ran with mpi_preconnect_mpi 1, well that doesn't help here, both my production code (crash) and IMB still hang.
>
>
> Brock Palen
> www.umich.edu/~brockp
> Center for Advanced Computing
> brockp_at_[hidden]
> (734)936-1985
>
>>
>> --
>> Excuse the typping -- I have a broken wrist
>>
>> _______________________________________________
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>>
>
>
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