On Sat, 20 Jan 2007, Ben Tay wrote:
> Hi, > > I've encountered some MPI programming problems. Does anyone know of a > mailing list sort of discussion forum similar to this PETSc one which deals > with MPI? I don't know. Open MPI has a users list, maybe that is appropriate http://www.open-mpi.org/community/lists/users/ > > Btw, my question is as follow, it will be great if someone can help too ;-) > > It's in fortran but I guess it should be similar in C. Put it simply, how do > I broadcast part of a derived type variable to other processors ie > > type particle > > real x,y,z > > integer number > > end type particle > > type(particle) part(10,10) > > So I want to broadcast part(:,:)%x to other processors. How can I do that? I > tried to use: > > call MPI_BCAST(part(i,j)%x, 1, MPI_Real,1, MPI_COMM_WORLD, ierr) but it > can't work. What happens? The value on the other processes is not changed to what it should be? > > Thank you very much >
