According to the error message - the communicator is invalid. You might want to check that..
You should be able to call MPI_Comm_size() after PetscInitialize() Check src/sys/examples/tutorials/ex1.c for an example of this usage. BTW: Do PETSc examples run fine with your install? Satish On Mon, 13 Mar 2006, ziemer at lncc.br wrote: > Hello, > > I would be very glad if someone could give me some direction: > > After the MPI_Comm_size function is called, I got this error: > > aborting job: > Fatal error in MPI_Comm_size: Invalid communicator, error stack: > MPI_Comm_size(110): MPI_Comm_size(comm=0x1, size=0xbfffdf78) failed > MPI_Comm_size(69): Invalid communicator > > It seems that the MPI environment is not being correctly created by the > function > PetscInitialize. > > > Does anyone have any idea? > > > Best Regards. > > ---------------------------------------------------------------- > This message was sent using IMP, the Internet Messaging Program. > >
