I am thinking about the next step, and have some questions on the semantics of MPI_Comm_revoke()

- When the routine returns, can the communicator ever be used again ?  If I remember correctly, the communicator is available for point-to-point traffic, but not collective traffic – is this correct ?

- Looking forward, if one wants to restart the failed ranks (let’s assume we add support for this), what can be assume about the “repaired” communicator ?  What can’t I assume about this communicator ?

Rich