*** Testing allreduce from Fortran ***
 MPI_SUM
 MPI_PROD
 MPI_MAX
 MPI_MIN
 MPI_LOR
 MPI_LXOR
 MPI_LAND
 MPI_BOR
 MPI_BAND
 MPI_BXOR
 MPI_MAXLOC
 MPI_MINLOC
*** Testing allreduce from Fortran ***
