:
https://github.com/open-mpi/ompi/issues/2402
From: devel on behalf of Ibanez, Daniel
Alejandro
Sent: Saturday, November 12, 2016 9:40 AM
To: devel@lists.open-mpi.org
Cc: Roberts, Nathan V; Thomas E. Voth
Subject: [EXTERNAL] [OMPI devel] regression
Hello,
I'd like to report a bug with OpenMPI version 2.0.1.
Attached to this email is a C program that runs with
only one MPI rank, uses MPI_Dist_graph_create
to create a graph topology with no communication
edges, and then uses MPI_Neighbor_alltoall
with that graph topology. This results in
