[Rebeca]

Hi everyone!

I'm trying to run the rhoSimpleFoam/gasMixing/injectorPipe tutotial's case with little lucky.

After solving the case, I haven't been able to see the results. If I use the command "reconstructPar", the next error appears:

--> FOAM FATAL ERROR: (openfoam-2012)
cannot find file "/media/sf_OpenFoam/run/tutorials/compressible/rhoSimpleFoam/gasMixing/injectorPipe/processor0/constant/polyMesh/pointProcAddressing"

    From virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::readStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
    in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 547.

FOAM exiting

And If I try with "reconstructParMesh", it seems to do nothing:

/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2012                                  |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : 79e353b8-20201222 OPENFOAM=2012
Arch   : "LSB;label=32;scalar=64"
Exec   : reconstructParMesh -mergeTol 1e-06
Date   : Apr 23 2021
Time   : 09:16:22
Host   : rebeca-VirtualBox
PID    : 16906
I/O    : uncollated
Case   : /media/sf_OpenFoam/run/tutorials/compressible/rhoSimpleFoam/gasMixing/injectorPipe
nProcs : 1
trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 5, maxFileModificationPolls 20)
allowSystemOperations : Allowing user-supplied system call operations

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

Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
This is an experimental tool which tries to merge individual processor
meshes back into one master mesh. Use it if the original master mesh has
been deleted or if the processor meshes have been modified (topology change).
This tool will write the resulting mesh to a new time step and construct
xxxxProcAddressing files in the processor meshes so reconstructPar can be
used to regenerate the fields on the master mesh.

Not well tested & use at your own risk!

Merge tolerance : 1e-06
Write tolerance : 1e-06
Doing geometric matching on correct procBoundaries only.
This assumes a correct decomposition.
Found 8 processor directories

Reading database "injectorPipe/processor0"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Reading database "injectorPipe/processor1"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Reading database "injectorPipe/processor2"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Reading database "injectorPipe/processor3"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Reading database "injectorPipe/processor4"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Reading database "injectorPipe/processor5"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Reading database "injectorPipe/processor6"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Reading database "injectorPipe/processor7"
sigWriteNow : Enabling writing upon signal 12
Overriding OptimisationSwitches according to controlDict
    writeNowSignal  12;

sigWriteNow : Enabling writing upon signal 12
Time = 100

No mesh.

Time = 200

No mesh.

Time = 300

No mesh.

Time = 400

No mesh.

Time = 500

No mesh.

Time = 600

No mesh.

Time = 700

No mesh.

Time = 800

No mesh.

Time = 900

No mesh.

Time = 1000

No mesh.

Time = 1100

No mesh.

Time = 1200

No mesh.


End

I have been trying to solve this problems for days and I don't know what else to do.

I hope you can help me!

Thanks in advance,
Rebeca

[apoorv121]

Hello Rebeca,

It seems like you have a processor*/constant/polyMesh folder structure. reconstructParMesh works when there is only polyMesh folder under each processor* folder. Once all the mesh is reconstructed then you can use the reconstructPar to get all the variable data in single file/time slot.

Also sometimes paraview crashes when loading this type of data. You can use foamToVTK to convert this data since each time folder might have a different mesh due to DyM refinement or topology changes.

Hope it works for you.

[quarkz]

For me, I have got this error:

Create time



Reconstructing fields
region=region0



--> FOAM FATAL ERROR: (openfoam-2206)
cannot find file "/home//tsl/scratch/agile_flight/OpenFOAM/model_black_UAV_2.5e-5_5.59M_6dof_moi1_SST/processor0/2e-05/polyMesh/pointProcAddressing"

From virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::rea dStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const
in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 540.

FOAM exiting

Hence, I wrote a "of_copy_ProcAddressing_loop.sh" script:

#!/bin/bash
for ((i = 0; i < $1; i++ )); do
    echo "$i"
    cp processor$i/constant/polyMesh/*ProcAddressing processor$i/$2/polyMesh/
done

Usage:

of_copy_ProcAddressing_loop.sh a b

where:

a = no of processors
b = time saved

e.g.

of_copy_ProcAddressing_loop.sh a b 512 0.1

Hope it helps.

[dragazsolt]

Hi quarkz,



Iam have a same issue in case of AMI and Openfoam2306 and 2212.

I tried your scipt it does not work for me properly.

syntax :

sh of_copyProcAddressing_loop.sh 128 0.05

Error is bad for loop variables?

Do you have ideas to fix reconstructPar error?



Thanks,

Zsolt

[quarkz]

Hi dragazsolt, there's no need for sh in front, just run it like:

./of_copy.sh 512 0.1 if the file is in the same dir.

hope it works.

[Amosx]

hello everyone I'm facing the same problem, i managed to run the tutorial but i cannot view the results.

[Amosx]

1. create a .foam file using touch command ex. touch case.foam
2.open case.foam using paraview
3.in paraview properties - case type change it to decomposed case.


thank you

[JBeilke]

you have to run:

reconstructParMesh
reconstructPar