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Subject: Re: [OMPI devel] Regarding registering openib memory
From: Jeff Squyres (jsquyres) (jsquyres_at_[hidden])
Date: 2013-05-31 10:19:47


Perhaps you might want to read the FAQ item cited in the help message.

:-)

On May 31, 2013, at 9:04 AM, alankrutha reddy <alankruthareddy46_at_[hidden]> wrote:

>
>
> Hi,
>
> Whwnever I'm trying to run MPI program it is giving error. I have changed locked memory limits by using
> ulimit -l unlimited
>
> But still it is giving below error
>
> --------------------------------------------------------------------------
> WARNING: It appears that your OpenFabrics subsystem is configured to only
> allow registering part of your physical memory. This can cause MPI jobs to
> run with erratic performance, hang, and/or crash.
>
> This may be caused by your OpenFabrics vendor limiting the amount of
> physical memory that can be registered. You should investigate the
> relevant Linux kernel module parameters that control how much physical
> memory can be registered, and increase them to allow registering all
> physical memory on your machine.
>
> See this Open MPI FAQ item for more information on these Linux kernel module
> parameters:
>
> http://www.open-mpi.org/faq/?category=openfabrics#ib-locked-pages
>
> Local host: abc
> Registerable memory: 32768 MiB
> Total memory: 131007 MiB
>
> Your MPI job will continue, but may be behave poorly and/or hang.
> --------------------------------------------------------------------------
>
>
>
> How can I resolve it.? Can anyone help me in fixing this bug.?
>
>
>
> --
> Regards
> Alankrutha
> _______________________________________________
> devel mailing list
> devel_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/devel

-- 
Jeff Squyres
jsquyres_at_[hidden]
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