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Subject: Re: [OMPI devel] shmem error msg
From: Ralph Castain (rhc_at_[hidden])
Date: 2011-07-25 13:05:04


On Jul 25, 2011, at 10:16 AM, Samuel K. Gutierrez wrote:

> Hi Ralph,
>
> It seems as if this issue is related to a missing shm_unlink wrapper within Valgrind. I'm going to disable posix by default and commit later today.

Is that the right solution? If the problem is something in valgrind, then let's not disable something just for their problem. Is there a way we can wrap it ourselves so the error doesn't cause the message?

Like I said, everything worked just fine - the message just implied the proc would die, and it doesn't.

>
> Thanks,
> --
> Samuel K. Gutierrez
> Los Alamos National Laboratory
>
> On Jul 23, 2011, at 8:54 PM, Samuel K. Gutierrez wrote:
>
>> Hi Ralph,
>>
>> That's mine - I'll take a look.
>>
>> Thanks,
>>
>> Sam
>>
>>> Whenever I run valgrind on orterun (or any OMPI tool), I get the following
>>> error msg:
>>>
>>> --------------------------------------------------------------------------
>>> A system call failed during shared memory initialization that should
>>> not have. It is likely that your MPI job will now either abort or
>>> experience performance degradation.
>>>
>>> Local host: Ralph
>>> System call: shm_unlink(2)
>>> Error: Function not implemented (errno 78)
>>> --------------------------------------------------------------------------
>>>
>>> It's coming out of open-rte/help-opal-shmem-posix.txt.
>>>
>>> Everything continues, so I'm not sure what this is all about. Anyone
>>> recognize this???
>>>
>>> It's on the trunk, running on a Mac, vanilla configure.
>>> Ralph
>>>
>>>
>>> _______________________________________________
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>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>>>
>>
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