Buffer Objects
MPI lets the program provide memory buffers that communicators can use to keep a copy of data while it is being sent. The Win (shared memory) object also uses buffers, either from the users memory or from MPI_Alloc_mem(..).
MPI lets the program provide memory buffers that communicators can use to keep a copy of data while it is being sent. The Win (shared memory) object also uses buffers, either from the users memory or from MPI_Alloc_mem(..).