OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Problem with MPI execution an LBM algorithm › Re: Problem with MPI execution an LBM algorithm August 30, 2012 at 2:34 pm #2081 Padde86Member Problem solved:rnrnthe compiler for mpi execution had to be changed. Instead ofrnrnCXX = mpiCCrnit shopuld be changed tornCXX = mpic++rnrnthanks to everybody for the helprnrnbest patrick