That's why I feel that this is a minor change. As to your example, it's possible that failed collectives result in CANNOT_CONTINUE, but a send to a failed process maybe doesn't have to. You can still send to other processes. -d On Sep 22, 2010, at 1:16 PM, Richard Treumann wrote:

The situation of MPI state being totally trashed by an error that returns a return code barely exists. The case where it is subtly discombobulated is the norm.