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Hello, I am wondering in openmpi how is the passing of MPI communcator
from Fortran to C is handled? Assuming I have a Fortran 90 subroutine
calling a C function passing MPI_COMM_WORLD in, in the C function, do I
need to first do MPI_Comm_f2c
to convert to MPI handle, then use that handle afterward? Or is there
any better way to do this? Here is some test code:
write(*,*) 'hello, I am process #',myrank
end program test1
void parallel_info_(int * rank, int* comm)
void parallel_info(int * rank, int * comm)