[mvapich-discuss] (no subject)

[Jonathan Perkins]

Thanks for trying this out.  I believe you said that this was with Fedora
23 while using one of our RPMs.  Can you share with us the RPM used and the
output of mpiname -a?  Can you also send us the output of ldd
osu_acc_latency?  We'll try to reproduce this issue and think of a
workaround.

On Wed, Feb 24, 2016 at 12:54 PM Nenad Vukicevic <nenad at intrepid.com> wrote:

> I got the same result.
>
> [nenad at dev one-sided]$ mpirun -n 2 osu_acc_latency
>
> WARNING: Error in initializing MVAPICH2 ptmalloc library.Continuing
> without InfiniBand registration cache support.
>
> # OSU MPI_Accumulate latency Test v5.2
>
> # Window creation: MPI_Win_allocate
>
> # Synchronization: MPI_Win_flush
>
> # Size          Latency (us)
>
> 0                       0.14
>
> 1                       3.50
>
> 2                       3.12
>
> 4                       3.01
>
> 8                       3.99
>
> 16                      4.02
>
> 32                      4.04
>
> 64                      4.14
>
> 128                     4.79
>
> 256                     5.08
>
> 512                     5.50
>
> 1024                    6.42
>
> 2048                    7.51
>
> 4096                    8.93
>
> 8192                   13.53
>
> 16384                  26.76
>
> 32768                  43.19
>
> 65536                 193.44
>
> 131072                261.60
>
> 262144                397.56
>
> 524288                670.97
>
> 1048576              1214.61
>
> 2097152              2692.48
>
> 4194304              5265.03
>
> On Wed, Feb 24, 2016 at 8:22 AM, Nenad Vukicevic <nenad at intrepid.com>
> wrote:
>
>> 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
>>>> --===============3181330637561286136==
>>>> Content-Type: multipart/alternative;
>>>> boundary="089e0112c5cce95adb052c794745"
>>>>
>>>> --089e0112c5cce95adb052c794745
>>>> Content-Type: text/plain; charset="UTF-8"
>>>>
>>>> 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
>>>>
>>>> --089e0112c5cce95adb052c794745
>>>> Content-Type: text/html; charset="UTF-8"
>>>> Content-Transfer-Encoding: quoted-printable
>>>>
>>>> <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>
>>>>
>>>> --089e0112c5cce95adb052c794745--
>>>>
>>>> --===============3181330637561286136==
>>>> Content-Type: text/plain; charset="us-ascii"
>>>> MIME-Version: 1.0
>>>> Content-Transfer-Encoding: 7bit
>>>> Content-Disposition: inline
>>>>
>>>> _______________________________________________
>>>> mvapich-discuss mailing list
>>>> mvapich-discuss at cse.ohio-state.edu
>>>> http://mailman.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
>>>>
>>>> --===============3181330637561286136==--
>>>>
>>>
>>
>>
>> --
>> Nenad
>>
>
>
>
> --
> Nenad
>
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