On Nov 10, 2004, at 7:53 AM, atarpley wrote:
> Is there a way to broadcast a message over multiple
> inter-communicators?
No. The MPI API does not allow this.
> I am aware of how to broadcast to all processes within a single
> communicator
> (MPI_Bcast) but the only way I can think of to send a message to
> processes in
> DIFFERENT Inter-Communicators is to do sequentially walk through each
> Communicator and do a Send. Is there a better way?
A send or a BCAST, correct.
The other obvious alternative would be to make an "uber-communicator"
that contains all the processes in all of your intercommunicators, and
then you can use BCAST.
--
{+} Jeff Squyres
{+} jsquyres_at_[hidden]
{+} http://www.lam-mpi.org/
|
