The OPAL Discussion Forum

[Andreas Adelmann <andreas.adelmann AT psi.ch>]

Hello Norman the input files is just fine, I made one small change not related to your problem.

Can you send me the std-output of your run? On which cluster do you run?

Are you sure that MPI is installed properly i.e. can you run a canonical MPI test - for example 

calculating Pi - (this test comes with every MPI distribution).

You should also contact Fred Jones, I remember having similar problems when I was at Triumf 

in the beginning of this year. 

Cheers Andreas 

Attachment: isis.in
Description: Binary data

On Nov 26, 2011, at 2:54 AM, Norman Huang wrote:

Hi Andreas,

I'm trying to do space charge calculations using parallel computing on OPAL-T, but 

it appears only 1 core is being used.

This is my fieldsolver parameters:

Fs1:FIELDSOLVER, FSTYPE=fft, MX=32, MY=32, MT=2024,

PARFFTX=true, PARFFTY=true, PARFFTT=false,

BCFFTX=open, BCFFTY=open, BCFFTT=open,

BBOXINCR=1, GREENSF=INTEGRATED;

Command used to run the test 'isis.in': mpirun -np 8 opal --commlib mpi isis.in

When it's being run, all 8 cpu cores are active, but only one is doing the

calculations. Furthermore, this run actually took an hour more than a previous

run using a single core. 

Am I missing some configurations?

Regards,

Norman

<isis.in>

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Dr. sc. math. Andreas (Andy) Adelmann
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