Okay, so I've gotten a little bit closer.
I'm using MPI_Comm_spawn to start several children processes. The
problem is that the children are in their own group, separate from the
parent (just the like the documentation says). I want to merge the
children's group with the parent group so I can efficiently Send/Recv
data between them..
Is this possible?
Plan B: I guess if there is no elegant way to merge all those processes
into one group, I can connect sockets and make intercomms to talk from
the parent directly to each child.
-- Mark
Mark Borgerding wrote:
I am writing a code module that plugs into a larger application
framework. That framework loads my code module as a shared object.
So I do not control how the first process gets started, but I still
want it to be able to start and participate in an MPI group.
Here's roughly what I want to happen ( I think):
framework app running (not under my control)
-> framework loads mycode.so shared object into its process
-> mycode.so starts mpi programs on several hosts (e.g.
via system call to mpiexec )
-> initial mycode.so process participates in the group
he just started (e.g. he shows up in MPI_Comm_group, can use MPI_Send,
MPI_Recv, etc. )
Can this be done?
I am running under Centos 5.2
Thanks,
Mark
_______________________________________________
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users
