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Subject: Re: [OMPI users] OpenMPI 1.4.2 Hangs When Using More Than 1 Proc
From: Stergiou, Jonathan C CIV NSWCCD West Bethesda, 6640 (jonathan.stergiou_at_[hidden])
Date: 2011-04-12 11:24:42


Ralph,

Thanks for the reply and guidance.

I ran the following:

$> mpirun -np 1 hostname
XXX_TUX01

$> mpirun -np 2 hostname
XXX_TUX01
XXX_TUX01

$> mpirun -np 1 ./hello_c
Hello, world, I am 0 of 1.

$> mpirun -np 2 ./hello_c
(no result, terminal does not respond until ctrl+c)

> Let's simplify the issue as we have no idea what your codes are doing.
>
> Can you run two copies of hostname, for example?
>
> What about multiple copies of an MPI version of "hello" - see the examples directory in the OMPI tarball.



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