[mpich-discuss] MPI log via MPE on CRAY XC30 machine

[Milind Chabbi]

Pavan,

That worked. Now, my second question, should I compile the entire
application with mpecc or just using mpecc during the last linking
step is sufficient?

Specifically, I have a scenario where I am already overriding some MPI
functions such as MPI_Init, MPI_Finalize, and MPI_Barrier.
So, I am trying to do a two step process:

Step 1: Create a relocatable binary with my intercepted MPI calls:
CC -Wl,-r -o foo_r foo.cpp  -nostdlib -Wl,--wrap=MPI_Init
-Wl,--wrap=MPI_Finalize  -Wl,--wrap=MPI_Barrier  my_mpi_intercepts.o

Step 2: Create the final executable by linking with MPECC
$MPECC  -o foo foo_r  -mpilog

When I do this, the generated executable does not produce any clog2 logs.

-Milind




On Wed, Sep 17, 2014 at 12:52 PM, Balaji, Pavan <balaji at anl.gov> wrote:
>
> You’ll need to download the latest version.
>
> http://www.mpich.org/static/mpe/downloads/
>
> I’ll need to figure out the exact download tarballs and clean up the above link, but for now you can pick the latest version of MPE2.
>
>   — Pavan
>
> On Sep 17, 2014, at 12:32 PM, Milind Chabbi <Milind.Chabbi at rice.edu> wrote:
>
>> Pavan,
>>
>> Now, I am trying MPE2 present inside mpich2-1.4.1p1. It runs into
>> several compilation issues (see below). Do you have any suggestions?
>>
>> Can you tell me how MPE2 achieves the logging? Does it divert MPI_
>> calls through its own functions? On static libraries does it use
>> linker wrapping? For a large application simply changing the last
>> linker step to use mpecc would suffice or does it need the whole
>> application to be recompiled with mpecc wrapper?
>>
>>
>> --------------------------------------------------------
>> **** Making src/wrappers ....
>>
>> make --no-print-directory  build_lib_bin
>>
>> cc -I.. -I../../../../src/wrappers/include
>> -I/global/homes/m/mc29/software/mpich2-1.4.1p1/src/mpe2/BUILD/include
>> -I../../.. -I../../../../src/wrappers/../../include   -c
>> ../../../../src/wrappers/src/log_mpi_util.c
>>
>> cc -I.. -I../../../../src/wrappers/include
>> -I/global/homes/m/mc29/software/mpich2-1.4.1p1/src/mpe2/BUILD/include
>> -I../../.. -I../../../../src/wrappers/../../include   -c
>> ../../../../src/wrappers/src/log_mpi_core.c
>>
>> ../../../../src/wrappers/src/log_mpi_core.c: In function 'MPI_Allgather':
>>
>> ../../../../src/wrappers/src/log_mpi_core.c:1550:8: error: argument
>> 'sendbuf' doesn't match prototype
>>
>> void * sendbuf;
>>
>>        ^
>>
>> In file included from ../../../../src/wrappers/src/log_mpi_core.c:10:0:
>>
>> /opt/cray/mpt/6.3.1/gni/mpich2-gnu/48/include/mpi.h:945:5: error:
>> prototype declaration
>>
>> int MPI_Allgather(const void *sendbuf, int sendcount, MPI_Datatype
>> sendtype, void *recvbuf,
>>
>>     ^
>> --------------------------------------------------------
>>
>> On Wed, Sep 17, 2014 at 6:20 AM, Balaji, Pavan <balaji at anl.gov> wrote:
>>> Milind,
>>>
>>> Did you try this link?
>>>
>>> http://wiki.mpich.org/mpich/index.php/MPE_by_example
>>>
>>> — Pavan
>>>
>>> On Sep 17, 2014, at 12:26 AM, Milind Chabbi <milind.chabbi at rice.edu> wrote:
>>>
>>>> I am trying to gather MPI logs on CRAY XC30 (Edison machine at NERSC.)
>>>> I built MPE 2-1.3 (ftp://ftp.mcs.anl.gov/pub/mpi/mpe/mpe2.tar.gz) with
>>>> the following configure command:
>>>>
>>>> ./configure MPI_CC=cc F77=ftn MPI_F77=ftn --prefix=/XXXXX/mpe2-1.3.0-install
>>>>
>>>> I compiled a simple application with the following command:
>>>> /XXXX/mpe2-1.3.0-install/bin/mpecc  test1.cpp -mpilog
>>>>
>>>> The code compiled fine, but the execution did not generate any log files.
>>>>
>>>> I am trying to generate logs files of MPI calls to view with Jumpshot
>>>> on programs compiled on Cray XC30. Can you suggest the steps needed to
>>>> get this working?
>>>>
>>>> Thanks
>>>> -Milind
>>>> _______________________________________________
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>>>
>>> --
>>> Pavan Balaji  ✉️
>>> http://www.mcs.anl.gov/~balaji
>>>
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>> _______________________________________________
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>
> --
> Pavan Balaji  ✉️
> http://www.mcs.anl.gov/~balaji
>
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