[MITgcm-support] Running a test in parallel

[Luis Cebamanos]

Hi Jody,

I am sorry for the confusion. It is still on the same system, just
different partitions. The computing nodes can only see some partitions
of the system.
I guess my question is, why is MITgcm failing to read  bathymetry.bin
although the file is created?

Thanks,
Luis
On 03/02/2017 18:58, Jody Klymak wrote:
> Hi Luis,
>
> You must recompile `mitgcmuv` on the new computer.  Executable programs aren’t usually portable between architectures.  Hopefully there is a helpful file in `tools/build_options` to help w/ your genmake2 step.
>
> Cheers,   Jody
>
>
>> On 3 Feb 2017, at  10:53 AM, Luis Cebamanos <l.cebamanos at epcc.ed.ac.uk> wrote:
>>
>> Hi all,
>>
>> I am totally new to MITgcm, so apologies if I say any  nonsense. I m
>> trying to run a test in parallel,so I started with
>> global_ocean.90x40x15. I changed the SIZE.h to run on 4 mpi processes
>> and built it successfully. Now, I am working on a Cray system, meaning
>> that it has to be run on a different location. So I copied over to the
>> right place /work/MITgcm/ the following directories from
>> global_ocean.90x40x15:
>>
>> global_ocean.90x40x15/input
>> global_ocean.90x40x15/build/mitgcmuv
>> tutorial_global_oce_latlon/input
>>
>> I then created the directory /work/MITgcm/run and run the following:
>> ln -s ../input/* .
>> ../input/prepare_run
>> ln -s ../mitgcmuv .
>>
>> My script calls MITgcm:
>>
>> aprun -n 4 -N 4 -d 1 ./mitgcmuv
>>
>> It appears to start running properly but soon fails with the following
>> errors:
>>
>> lib-4016 : UNRECOVERABLE library error
>>  A READ operation tried to read a nonexistent record (721).
>>
>> Encountered during a direct access unformatted READ from unit 9
>> Fortran unit 9 is connected to a direct unformatted unblocked file:
>>  "bathymetry.bin"
>>
>> lib-4016 : UNRECOVERABLE library error
>>  A READ operation tried to read a nonexistent record (730).
>>
>> lib-4016 : UNRECOVERABLE library error
>>  A READ operation tried to read a nonexistent record (370).
>>
>>
>> Could someone please help me to run a simple test case ?
>>
>> Regards,
>> Luis
>>
>>
>>
>>
>>
>>
>> The University of Edinburgh is a charitable body, registered in
>> Scotland, with registration number SC005336.
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> --
> Jody Klymak    
> http://web.uvic.ca/~jklymak/
>
>
>
>
>
>
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