[mpich-discuss] my mpi code goes slow after some time

[Lu, Huiwei]

How slow is that? What’s the version of your MPI? How many processes you use?

If only 0.3% RAM was used for each core, it was unlikely the code went slow because of running out of RAM. Can you give us a minimum working example of your code so that we can reproduce your problem?

—
Huiwei Lu
Postdoc Appointee
Mathematics and Computer Science Division, Argonne National Laboratory
http://www.mcs.anl.gov/~huiweilu/

On Apr 10, 2014, at 7:57 AM, harsh soni <harshiisc at gmail.com> wrote:

> Hi,
> I am running a mpi code on cluster. It goes slow after some time. I don't allocate any array in main for loop, every array is allocated initially. Each core is showing  0.3 to 0.5 % RAM  usage. doe sit go slow due to the RAM. I use fortran language.
> 
> 
> Thanks
> 
> With best regards
> Harsh Soni
> Ph.D. student,
> IISc, Bengaluru (India)
> 
> 
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