[aaron99]

I'm getting different behaviors while rereading fvSolution file using mpirun and without using it.

I modified my fvSolution.H file and added a fvSolution.C (also added it to Make)

fvSolution.C

bool::Foam::fvSolution::read() {
  Info << "fvSolution rereading" << endl;
  return solution::read();
}

fvSolution.H (I override the read() method)

public:
  virtual bool read();

from my shell I run the tutorial in:
tutorials/heatTransfer/buoyantBoussinesqSimpleFoam/hotRoom

1. sequential run: (without mpi)

./Allrun &
echo " " >> fvSolution # this just puts a blank line at the end of fvSolution, causing it to be reread

when I check the log, I see "fvSolution rereading" inside it, as expected.

2. mpi parallel run

./Allrun.par&
mpirun -np 4 buoyantBoussinesqSimpleFoam -parallel > log.bbsf &
echo " " >> fvSolution

but the log.bbsf contains no "fvSolution rereading" in it.

How can I explain that behavior ? (I use OpenFoam 2.3.x version, if that matters at all)
This doesn't make any sense to me.

Allrun.par is just a tailored version of Allrun.

#!/bin/sh
cd ${0%/*} || exit 1    # run from this directory

# Source tutorial run functions
. $WM_PROJECT_DIR/bin/tools/RunFunctions

application=`getApplication`

runApplication blockMesh
cp 0/T.org 0/T
runApplication setFields
runApplication decomposePar
# runApplication $application
# runApplication mpirun -np 4 $application -parallel 
# ----------------------------------------------------------------- end-of-file