6.3 Completion of RDMA operation

This section presents functions that are used to check for completion of an RDMA operation. The one sided communication operations are asynchronous, thus there needs to be a mechanism to verify for completion. One mechanism is for the programmer to check for completion. The other mechanism is through callback functions registered during the RDMA operations.

int CmiWaitTest(void *obj);
This function takes this RDMA handle and verifies if the operation corresponding to this handle has completed.

A typical usage of this function would be in AMPI when there is a call to AMPIWait. The implementation should call the CmiWaitTest for all pending RDMA operations in that window.