Re: Spawned processes and inter-communicators ?

Rusty Lusk (lusk@mcs.anl.gov)
Mon, 01 Apr 1996 09:49:51 -0600

|
| Hi
|
| here's my problem.
|
| Suppose, we have one task that calls "MPI_Spawn" twice to spawn two sets
| of processes.
| For each set of processes, an inter-communicator will exist in order to
| send/receive messages to/from its father. (thanks to MPI_Comm_parent).
|
| Suppose now, that the first set of spawned processes needs to send/receive
| messages to/from the other set of spawned processes.
|
| How can I do that ?
| I did not see any hints about that in the current version of the "dynamic
| process" chatper of MPI-2.
|

This is possible by the usual communicator-construction routines, although
it is a bit cumbersome. We need to put an example of this in the chapter.

Rusty