Re: [OMPI users] Heap profiling with OpenMPI

[George Bosilca]

Jan,


mpirun -np XX valgrind --tool=callgrind -q --log-file=some_file ./my_app

I just run your example:

and I got 2 non empty files in the current directory:
    bosilca@dancer:~/NetPIPE_3.6.2$ ls -l massif.out.*


  george.

On Aug 5, 2008, at 5:21 PM, Jan Ploski wrote:

I'm using valgrind with Open MPI on a [very] regular basis and I never had any problems. I usually want to know the execution path on the MPI applications. For this I use: mpirun -np 2 -bynode --mca btl tcp,self valgrind --tool=massif - q ./NPmpi -u 4 -rw------- 1 bosilca bosilca 140451 2008-08-05 11:57 massif.out. 21197 -rw------- 1 bosilca bosilca 131471 2008-08-05 11:57 massif.out. 21210

Hi,


"valgrind --tool=massif ./prog.exe". However, when I tried the same

even though the MPI process ran and finished as expected. Can someone
explain this or provide an alternative way of obtaining the same
information (preferably one that does not require source code
instrumentation and recompiling)?

Best regards,
Jan Ploski

--
Dipl.-Inform. (FH) Jan Ploski
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I wanted to determine the peak heap memory usage of each MPI process in my application. Using MVAPICH it can be done by simply substituting a wrapper shell script for the MPI executable and from that wrapper script starting approach with OpenMPI, I got no output from massif (empty output file),

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