On Oct 25, 2007, at 11:16 AM, Edgar Gabriel wrote:
If you have the following scenario:
- A spawns B, gets intercomm AB
- A spawns C, gets intercomm AC (that does not include B)
- ...repeat N times (e.g., to AN)
well, how about the following for your example:
- D = intercomm_merge (AB)
- E =
Jeff Squyres wrote:
On Oct 25, 2007, at 12:11 AM, George Bosilca wrote:
Now you cast a doubt on me. As far as I remember, there is a trick
in MPI2 to do this. You can merge your inter-communicators into one
intra-communicators with MPI_Intercomm_merge and then use
MPI_Intercomm_create to s
On Oct 25, 2007, at 12:11 AM, George Bosilca wrote:
Now you cast a doubt on me. As far as I remember, there is a trick
in MPI2 to do this. You can merge your inter-communicators into one
intra-communicators with MPI_Intercomm_merge and then use
MPI_Intercomm_create to spawn a new inter-comm
Now you cast a doubt on me. As far as I remember, there is a trick in
MPI2 to do this. You can merge your inter-communicators into one
intra-communicators with MPI_Intercomm_merge and then use
MPI_Intercomm_create to spawn a new inter-comm over the 2 childs
world (using the common parent as
I believe that the second scenario that Sriram described is
incorrect: you cannot merge independent intercommunicators into a
single communicator (either intra or inter).
On Oct 18, 2007, at 4:36 PM, Murat Knecht wrote:
Hi,
I have a question regarding merging intracommunicators.
Using MPI_
Hi,
I have a question regarding merging intracommunicators.
Using MPI_Spawn, I create on designated machines child processes,
retrieving an intercommunicator each time.
With MPI_Intercomm_Merge it is possible to get an intracommunicator
containing the master process(es) and the newly spawned child
