[BIRAJ]

Hi Foamers,
I tried to run "mpirun -np 2 scalarTransportFoam -parallel" as my computer only has 2 processors.
And I got following error:

MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
with errorcode 1.

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------

[0]
[0]
[0] --> FOAM FATAL ERROR:
[0] cannot find file "/home/biraj/OpenFOAM_files/ol_snappyFlange/processor0/0/T"
[0]
[0] From virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::rea dStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
[0] in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 546.
[0]
FOAM parallel run exiting
[0]
[1]
[1]
[1] --> FOAM FATAL ERROR:
[1] cannot find file "/home/biraj/OpenFOAM_files/ol_snappyFlange/processor1/0/T"
[1]
[1] From virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::rea dStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
[1] in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 546.
[1]
FOAM parallel run exiting
[1]
[DESKTOP-3PJCARR:08495] 1 more process has sent help message help-btl-vader.txt / cma-permission-denied
[DESKTOP-3PJCARR:08495] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
[DESKTOP-3PJCARR:08495] 1 more process has sent help message help-mpi-api.txt / mpi-abort

Thank you for reading. Please mention if I need to add more details.

[klausb]

I recommend to search the forum as a first step to resolve your problem.

Maybe this post helps: cma-permission-denied message for parallel running

[Lorenzo210]

Hello BIRAJ,
Please give more informations about your case: before running in parallel, did you run blockMesh, anything-else-you-need, and most importantly decomposePar?

The error says that OF cannot find file T in processor0/0 folder.
So first I would give a look inside processor0 and processor1 if there is any file. If there isn't, then something is wrong with the decomposition of 0 folder.
Without information we can just guess what happened.

Cheers,
Lorenzo