[mvapich-discuss] (no subject)

[Nenad Vukicevic]

We are not doing anything special,  the warning appears on a simple hello
program. I have MVAPICh built from 2.2b with and without debugging, and
also with RPM created from the RHEL 6 spec.  Note that this is fairly new
Fedora (FC23).

I'll try OMB for warnings.


On Wed, Feb 24, 2016 at 7:28 AM, Jonathan Perkins <
perkinjo at cse.ohio-state.edu> wrote:

> 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:
>
>> X-MS-Exchange-CrossTenant-FromEntityHeade
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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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>>
>


-- 
Nenad
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