[S.Samridh]

Hello everyone,

I have a pimpleFoam case set up to which running on parallel gives me an error that I can't find solution to, it runs fine when I execute it normally on one core.

It asks for missing files as processor01/0/s i don't know what this missing 's' file is, I tried creating dummy 's' files, but still didn't work.
Please help me fix this error.



It gives following error:

$ mpirun -np 4 mypimpleFoam -parallel
/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  8
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
Build  : 8-340defec456f
Exec   : mypimpleFoam -parallel
Date   : Feb 27 2021
Time   : 12:25:30
Host   : "samridh-GL63-8RC"
PID    : 48082
I/O    : uncollated
Case   : /home/samridh/OpenFOAM/samridh-8/run/smr_um
nProcs : 4
Slaves : 
3
(
"samridh-GL63-8RC.48083"
"samridh-GL63-8RC.48084"
"samridh-GL63-8RC.48085"
)

Pstream initialized with:
    floatTransfer      : 0
    nProcsSimpleSum    : 0
    commsType          : nonBlocking
    polling iterations : 0
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


PIMPLE: Convergence criteria found
        p: tolerance 1e-06
        U: tolerance 1e-06


PIMPLE: Operating solver in transient mode with 1 outer corrector
PIMPLE: Operating solver in PISO mode


Reading field p

Reading field U

Reading/calculating face flux field phi

Selecting incompressible transport model Newtonian
Selecting turbulence model type laminar
Selecting laminar stress model Stokes
No MRF models present

No finite volume options present
Courant Number mean: 0 max: 0

Starting time loop

[3] 
[3] 
[3] --> FOAM FATAL ERROR: 
[3] cannot find file "/home/samridh/OpenFOAM/samridh-8/run/smr_um/processor3/0/s"
[0] 
[0] 
[0] --> FOAM FATAL ERROR: 
[0] cannot find file "/home/samridh/OpenFOAM/samridh-8/run/smr_um/processor0/0/s"
[0] 
[0]     From function virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::readStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
[0] [1] 
[1] 
[1] --> FOAM FATAL ERROR: 
[1] cannot find file "/home/samridh/OpenFOAM/samridh-8/run/smr_um/processor1/0/s"
[1] 
[1]     From function virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::readStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
[1]     in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 538.
[1] 
FOAM parallel run exiting
[1] 
[3] 
[3]     From function virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::readStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
[3]     in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 538.
[3] 
FOAM parallel run exiting
[3] 
    in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 538.
[0] 
FOAM parallel run exiting
[0] 
[2] 
[2] 
[2] --> FOAM FATAL ERROR: 
[2] cannot find file "/home/samridh/OpenFOAM/samridh-8/run/smr_um/processor2/0/s"
[2] 
[2]     From function virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::readStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
[2]     in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 538.
[2] 
FOAM parallel run exiting
[2] 
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 1 in communicator MPI COMMUNICATOR 3 SPLIT FROM 0
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.
--------------------------------------------------------------------------
[samridh-GL63-8RC:48078] 3 more processes have sent help message help-mpi-api.txt / mpi-abort
[samridh-GL63-8RC:48078] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages

[S.Samridh]

https://discord.com/channels/3977727...91579618869268

I think the s file you're referring to is initial condition for  scalartransport. Check your controlDict if there is scalartransport  included then s is definitely initial condition for passive scalar

user "necrotoxic" correctly pointed out scalarTransport in controlDict file.
I commented it out and now the parallel run works.