[clemd]

Hi everyone,
I am trying to run a parallel case with snappyHexMesh and simpleFoam relying on the motorBike tutorial, and I am facing some difficulties. In the system folder, I adapted the blockMeshDict to edit my limit box, the snappyHexMeshDict to refine as I wish and the controlDict. I also adapted the boundary conditions in the 0.org according to the constant/polymesh/boundary file.I have my .stl file in the constant/triSurface/ directory so I follow the steps I found in the Allrun script as below:

surfaceFeatureExtract
blockMesh
decomposePar
mpirun -np 4 snappyHexMesh -parallel -overwrite
ls -d processor* | xargs -I {} rm -rf ./{}/0
ls -d processor* | xargs -I {} cp -r 0.org ./{}/0

Up to this step, everything seems ok, but when I run

mpirun -np 4 patchSummary -parallel

I run into a series of errors like this one :

M FATAL IO ERROR: 
[1] size 1651 is not equal to the given value of 853
[1] 
[1] file: ***[CASE DIRECTORY]***/processor1/0/thickness.boundaryField.naca_PART_1_FACE from line 56 to line 57.
[1] 
[1]     From function Field<Type>::Field(const word& keyword, const dictionary&, const label)
[1]     in file /mnt/home/SW/CFDSupportFOAM4.0/OpenFOAM-3.0.x/src/OpenFOAM/lnInclude/Field.C at line 283.
[1] 
FOAM parallel run exiting

and I have the following log :

--------------------------------------------------------------------------
[[13386,1],2]: A high-performance Open MPI point-to-point messaging module
was unable to find any relevant network interfaces:

Module: OpenFabrics (openib)
  Host: master

Another transport will be used instead, although this may result in
lower performance.
--------------------------------------------------------------------------
/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  3.0.x                                 |
|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : 3.0.x-4b5e129783d9
Exec   : patchSummary -parallel
Date   : Mar 29 2017
Time   : 10:11:42
Host   : "master"
PID    : 28391
Case   : ***[CASE DIRECTORY]***
nProcs : 4
Slaves : 
3
(
"master.28392"
"master.28393"
"master.28394"
)

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
allowSystemOperations : Allowing user-supplied system call operations

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

Create mesh for time = 0

Time = 0

Valid fields:
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 2 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.
--------------------------------------------------------------------------

Hoping that someone can help !
Cheers,
Clément

[alixcattermole]

Hello,

Were you even able to resolve this problem and if so how did you do it? As I am trying something similar and getting the same issues and errors.

Thanks.

[Antimony]

Hi,

Before generating blockMesh, have you made sure to delete all the previous mesh information?

Typically the "size ** not equal to size ***" comes about because it has two different sources of information, often the result of remeshing without completely wiping out the previous mesh....

Hope this helps.

Cheers,
Antimony