On Aug 27, 2015, at 11:55 AM, abhisek...@gmail.com wrote: > > I want to know if it is allowed in MPI one-sided communication to open > multiple windows simultaneously using the same communicator.
Yes. > The standard does not seem to forbid it as far as I can see, but when I look > at the open mpi osc components (rdma and portals4) it looks like a window is > always identified by the context-id in the communicator (for example the > match bits in portals4 component use the communicator cid to distinguish > among windows, there is a hash-table in the rdma component that uses the > communicator cid as the key to store open modules). It seems to me that these > components may not be able to support multiple open windows opened with the > same communicator. Nathan/Todd will have to answer that. I'd be (very) surprised if the code did not support multiple windows that were generated from the same communicator. -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
