That is not guaranteed to work. There is no streaming concept in the MPI
standard. The fundamental issue here is MPI is only asynchronous on the
completion and not the initiation of the send/recv.
It would be nice if the next version of mpi would look to add something like a
triggered send
Wonderful maybe but extremely unportable. Thanks but no thanks!
George.
On Wed, Nov 27, 2019 at 11:07 PM Zhang, Junchao wrote:
> Interesting idea. But doing MPI_THREAD_MULTIPLE has other side-effects. If
> MPI nonblocking calls could take an extra stream argument and work like a
> kernel
