Hi David, I just removed the GLOBALSYSSOLN section in my session file and the issue resolved. Thank you very much. Best, Ali ________________________________ From: Moxey, David <d.moxey@imperial.ac.uk> Sent: Friday, June 7, 2019 4:03 PM To: Akhavan Safaei, Ali Cc: nektar-users Subject: Re: [Nektar-users] Running IncNavierStokesSolver in parallel with I.C. from file Hi Ali, Do you have a GlobalSysSoln entry set somewhere in your session file that is set to a direct solver, either in the SOLVERINFO section or a separate GLOBALSYSSOLN section, e.g.: <I PROPERTY="GlobalSysSoln" VALUE="DirectStaticCond" /> If so you should remove this, since parallel simulations require the use of the iterative solver. Cheers, Dave
On 7 Jun 2019, at 20:28, Akhavan Safaei, Ali <akhavans@msu.edu> wrote:
Hello everyone,
I got an issue when I want to run IncNavierStokesSolver while I am giving the initial conditions from a filed data file as:
<FUNCTION NAME="InitialConditions"> <F VAR="u,v,w,p" FILE="IC.fld"/> </FUNCTION>
The "IC.fld" was generated from the following interpolation using parallel FieldConvert:
mpirun -np 256 FieldConvert -m interppointdatatofld Grid.xml IC.pts IC.fld
where "IC.pts" comes from u,v,w,p from a fully turbulent 3D data.
When I'm running the IncNavierStokesSolver with the following command:
mpirun -np 256 IncNavierStokesSolver Grid.xml Conds.xml
I'm getting the following error:
Fatal : Level 0 assertion violation A parallel solver must be used when run in parallel. ------------------------------------------------------- Primary job terminated normally, but 1 process returned a non-zero exit code. Per user-direction, the job has been aborted. ------------------------------------------------------- -------------------------------------------------------------------------- mpirun detected that one or more processes exited with non-zero status, thus causing the job to be terminated. The first process to do so was:
Exit code: 1 --------------------------------------------------------------------------
Everything works correctly if I don't run in parallel. Has anybody seen such issue? I would extremely appreciate it if you can help me with that.
Kind Regards, Ali Akhavan-Safaei
--------------------------------------------------- --------------------------------------------------- Ali Akhavan-Safaei, PhD student,
Graduate Research Assistant Michigan State University Department of Mechanical Engineering
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-- Dr David Moxey, PhD MMath MIMA FHEA Senior Lecturer in Engineering d.moxey@exeter.ac.uk | tel: 01392 724764 | web: davidmoxey.uk Room K1, Innovation Centre, University of Exeter, Exeter, EX4 4RN, UK.