Re: [OMPI devel] Problem-Bug with MPI_Intercomm_create()

2011-10-26 Thread George Bosilca
Executing a new modex is a little bit extreme. We can solve this by an approach similar to what we use for connect/accept. Step 1. the two leaders of the groups prepare a buffer with all the modex information they have about their own group peers (if they don't have it they can do a gather). S

[OMPI devel] Fwd: Troubles using MPI_Isend/MPI_Irecv/MPI_Waitany and MPI_Allreduce

2011-10-26 Thread Pedro Gonnet
Hi all, I'm forwarding this message from the "users" mailing list as it wasn't getting any attention there and I believe this is a bona-fide bug. The issue is that if an MPI node has two threads, one exchanging data with other nodes through the non-blocking routines, the other exchanging data wi