C-API change for Status, accept None and return MPI_STATUS_IGNORE
C-API change for Status, accept None and return MPI_STATUS_IGNORE
pressel/mpi4py,pressel/mpi4py,pressel/mpi4py,mpi4py/mpi4py,pressel/mpi4py,mpi4py/mpi4py,mpi4py/mpi4py