When you say "a real variable", you mean default real, no crazy implicit
typing or anything?
I think if x is real(8) you'd see what you say you see.
On Fri, 2009-02-20 at 18:54 -0500, -Gim wrote:
> I am trying to use the mpi_bcast function in fortran. I am using
> open-mpi-v-1.2.7
>
> Say x is
Hi Ralph,
Thank you very much for your explanation!
Ralph Castain wrote:
It is a little bit of both:
* historical, because most MPI's default to mapping by slot, and
* performance, because procs that share a node can communicate via
shared memory, which is faster than sending messages over
On Feb 21, 2009, at 1:05 AM, Raymond Wan wrote:
Hi Ralph,
Thank you very much for your explanation!
Ralph Castain wrote:
It is a little bit of both:
* historical, because most MPI's default to mapping by slot, and
* performance, because procs that share a node can communicate via
shared
