Re: [OMPI users] An error occured in MPI_Bcast; MPI_ERR_TYPE: invalid datatype

[Eugene Loh]

Pankatz, Klaus wrote:

Hi folks,
openMPI 1.4.1 seems to have another problem with my machine, or something on it. 

This little program here (compiled with mpif90) startet with mpiexec -np 4 
a.out produces the following output:
Suriprisingly the same thing written in C-Code (compiled with mpiCC) works 
without a problem.
 

Not so surprising since it's C code!

For Fortran:

MPI_INT -> MPI_INTEGER
and add an ierror argument to your MPI_Bcast call (the way you have for 
MPI_Comm_rank/size).