[mvapich-discuss] (no subject)

[Jonathan Perkins]

Hello Nenad.  Can you tell us more about your application?  Specifically if
there are any libraries or special handling of memory allocation that may
be linked in.  This type of problem usually occurs if MVAPICH2 isn't able
to properly intercept the malloc and free calls.

If you don't believe that your application is doing anything like this, can
you verify that you're able to run the OMB suite (such as osu_latency)
without this warning being emitted.

On Wed, Feb 24, 2016 at 3:11 AM Nenad Vukicevic <nenad at intrepid.com> wrote:

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> We are running mvapich 2.2b on Fedora 23. We are getting the following
> warning when running the code:
>
> WARNING: Error in initializing MVAPICH2 ptmalloc library.Continuing without
> InfiniBand registration cache support.
>
> I saw some previous discussions on the subject but none of the suggested
> solutions worked (there was a patch on 2.1a(?), plus LD_PRELAOD of mpich
> library, etc..).
>
> This error shows up on a simple hello test but only if we run on multiple
> nodes.  I can run multiple threads on the same node without causing this
> warning.
>
> Any idea what we can try?  I understand that there will be a slight
> decrease in performance if we disable ptmalloc.
>
> --
> Nenad
>
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> <div dir=3D"ltr">We are running mvapich 2.2b on Fedora 23. We are getting
> t=
> he following warning when running the code:<div>
>
>
>
>
>
>
>
> <p class=3D""><span class=3D"">WARNING: Error in initializing MVAPICH2
> ptma=
> lloc library.Continuing without InfiniBand registration cache
> support.</spa=
> n></p><p class=3D"">I saw some previous discussions on the subject but
> none=
>  of the suggested solutions worked (there was a patch on 2.1a(?), plus
> LD_P=
> RELAOD of mpich library, etc..).</p><p class=3D"">This error shows up on a
> =
> simple hello test but only if we run on multiple nodes.=C2=A0 I can run
> mul=
> tiple threads on the same node without causing this warning.</p><p
> class=3D=
> "">Any idea what we can try?=C2=A0 I understand that there will be a
> slight=
>  decrease in performance if we disable ptmalloc.</p><div><br></div>--
> <br><=
> div class=3D"gmail_signature"><div dir=3D"ltr"><div><div
> dir=3D"ltr">Nenad<=
> /div></div></div></div>
> </div></div>
>
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