[mpich-discuss] MPI 3.0 RMA question

[Boisvert, Sebastien]

Hi,

Let's say I have 20 ranks. They all call MPI_Win_create_dynamic  to create a window.
Then, every rank attach a buffer with MPI_Win_attach to their window.

Then, rank 3 calls MPI_Put to put, say, some data on the window of rank 99.
Rank 3 can then rely on MPI_Win_test to verify the completion of the operation
via the flag (or it can use MPI_Rput + MPI_Test).

Is there a way for rank 99 to know that its window (its buffer) contains new data ?