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Subject: [OMPI users] An mpirun question
From: Min Zhu (min.zhu_at_[hidden])
Date: 2009-04-16 05:43:08

Dear all,


I wonder if you could help me with this question.

I have got 3 Linux servers with 8 processors on each server. If I want
to run a job using mpirun command

and specify the number of processors to be used on each server. Is there
any way to do this? At the moment,

I find that I can only issue such command "mpirun -np 14 -host cfd1,cfd2
./wrf.exe' which means the mpirun

Will run the job using 7 processors on each server cfd1 and cfd2. Can I
specify say using 8 processors on cfd1 and

6 processors on cfd2? I ask this question because I found that the
different combination of processors on those

Servers can influence the computation time dramatically. Thank you very
much in advance,




Min Zhu

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