A wrapper class around MPI status
MPI::Status#source()
Returns the source of the message to which the status object refers.
C equivalent: status.MPI_STATUS
MPI::Status#tag()
Returns the tag of the message to which the status object refers.
C equivalent: status.MPI_TAG
MPI::Status#cancelled?()
Returns whether or not the message to which the status object refers was cancelled.
C equivalent: MPI_Test_cancelled()