[CIG-SEISMO] specfem2d MPI unstable？

[Dimitri Komatitsch]

Hi,

It is probably MPI that is not correctly installed on your machine. You 
can try one of the examples in the "EXAMPLES" directory, they all work 
fine and thus if they do not work on your machine this will confirm that 
the problem comes from your local MPI installation.
Otherwise you can also configure the code with "configure 
--enable-debug" to see if you get any useful message.

Best regards,
Dimitri.

On 08/11/2017 06:01 PM, 张明财 wrote:
> Hi Dimitri
> 
> I test specfem2d on serial simulation，it works well,
> 
> When i change the parameter "nproc=4" in par_file, MPI occur error and 
> exit , there are many NAN in the result.
> 
> how can i fix this problem？
> 
> Best regards
> 
> Mc
> 
> 
> 
> 
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-- 
Dimitri Komatitsch, CNRS Research Director (DR CNRS)
Laboratory of Mechanics and Acoustics, Marseille, France
http://komatitsch.free.fr