GitLab

In reqops.c, the ring communication test assumes remote
completion after MPI_RPut/MPI_Racc + MPI_Wait, which
is not correct. MPI_Wait only guarantees local completion.

Here we fixed it by replace MPI_Rput/MPI_Racc + MPI_Wait
with MPI_Put/MPI_Acc + MPI_Win_flush.
Signed-off-by: Xin Zhao <xinzhao3@illinois.edu>