[cececerece]

Hi Everyone!

I am trying to run parallel case in OpenFOAM 11 on WSL2. I have 8 cores, however, I want to run the case on 6 cores.

The code can be found here. DecomposeParDict seems correct, and the case without it is working perfectly fine. Also, all the checks stated in the OpenFOAM tutorial are done and MPI is enabled.

When I try to run mpirun -np 6 foamRun -parallel, I get following traceback:

--> FOAM FATAL ERROR:
bool IPstream::init(int& argc, char**& argv) : attempt to run parallel on 1 processor

From function static bool Foam::UPstream::init(int&, char**&, bool)
in file UPstream.C at line 108.

FOAM aborting

#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::error::abort() at ??:?
#2 Foam::UPstream::init(int&, char**&, bool) at ??:?
#3 Foam::argList::argList(int&, char**&, bool, bool, bool) at ??:?
#4 ? in "/opt/openfoam11/platforms/linux64GccDPInt32Opt/bin/foamRun"
#5 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#6 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#7 ? in "/opt/openfoam11/platforms/linux64GccDPInt32Opt/bin/foamRun"
[DESKTOP-IS5RTTG:91118] *** Process received signal ***
[DESKTOP-IS5RTTG:91118] Signal: Aborted (6)
[DESKTOP-IS5RTTG:91118] Signal code: (-6)
[DESKTOP-IS5RTTG:91118] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x42520)[0x7f0ccb17c520]
[DESKTOP-IS5RTTG:91118] [ 1] /lib/x86_64-linux-gnu/libc.so.6(pthread_kill+0x12c)[0x7f0ccb1d09fc]
[DESKTOP-IS5RTTG:91118] [ 2] /lib/x86_64-linux-gnu/libc.so.6(raise+0x16)[0x7f0ccb17c476]
[DESKTOP-IS5RTTG:91118] [ 3] /lib/x86_64-linux-gnu/libc.so.6(abort+0xd3)[0x7f0ccb1627f3]
[DESKTOP-IS5RTTG:91118] [ 4] /opt/openfoam11/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5error5abortEv+0x2db)[0x7f0ccb99adbb]
[DESKTOP-IS5RTTG:91118] [ 5] /opt/openfoam11/platforms/linux64GccDPInt32Opt/lib/openmpi-system/libPstream.so(_ZN4Foam8UPstream4initERiRPPcb+0x3e9 )[0x7f0ccabb6d19]
[DESKTOP-IS5RTTG:91118] [ 6] /opt/openfoam11/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7argListC1ERiRPPcbbb+0x758)[0x7f0ccb9b87b8]
[DESKTOP-IS5RTTG:91118] [ 7] foamRun(+0x3bbd)[0x55761401fbbd]
[DESKTOP-IS5RTTG:91118] [ 8] /lib/x86_64-linux-gnu/libc.so.6(+0x29d90)[0x7f0ccb163d90]
[DESKTOP-IS5RTTG:91118] [ 9] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80)[0x7f0ccb163e40]
[DESKTOP-IS5RTTG:91118] [10] foamRun(+0x4765)[0x557614020765]
[DESKTOP-IS5RTTG:91118] *** End of error message ***


--> FOAM FATAL ERROR:
bool IPstream::init(int& argc, char**& argv) : attempt to run parallel on 1 processor

From function static bool Foam::UPstream::init(int&, char**&, bool)
in file UPstream.C at line 108.

FOAM aborting


================================================== =================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= PID 91114 RUNNING AT DESKTOP-IS5RTTG
= EXIT CODE: 9
= CLEANING UP REMAINING PROCESSES
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
================================================== =================================
YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Terminated (signal 15)
This typically refers to a problem with your application.
Please see the FAQ page for debugging suggestions

What should I fix in order to run the code on my PC? Thank you all in advance!!

[cececerece]

Unfortunately, the problem was with WSL. I tried to run the case on Ubuntu and it worked

[Yann]

Hello,

I just tried out of curiosity, and it works for me.
OpenFOAM-11 on WSL2 running Ubuntu 20.04.

Not sure what is wrong for you, but I thought you might want to know it is supposed to work.

Yann