Setup your OpenFOAM case directory (mesh, conditions, etc.) as normal. Then let's consider an example where we want to run simpleFoam in parallel on 4 processors:
Launch the OpenFlow Parallel Command Prompt
Switch directory to your OpenFOAM case
Set the parallel options in system/decomposeParDict:
numberOfSubdomains 4;
method scotch;
Decompose the case using decomposePar
Run the case using mpiexec -n 4 simpleFoam -parallel
Use MS mpiexec
Setup your OpenFOAM case directory (mesh, conditions, etc.) as normal. Then let's consider an example where we want to run simpleFoam in parallel on 4 processors:
numberOfSubdomains 4;method scotch;decomposeParmpiexec -n 4 simpleFoam -parallelrecomposePar