More Quiz Questions Parallel Programming MPI Non-blocking, synchronous, asynchronous message passing routines ITCS 4/5145 Parallel Programming, UNC-Charlotte,

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More Quiz Questions Parallel Programming MPI Non-blocking, synchronous, asynchronous message passing routines ITCS 4/5145 Parallel Programming, UNC-Charlotte, B. Wilkinson, 2013, QuizQuestions2b.ppt Sept 23, 2013

What is meant by a non-blocking (or asynchronous) message passing routine in MPI? The routine returns when all the local actions are complete but the message transfer may not have completed. The routine returns immediately but the message transfer may not have completed. The routine returns when the message transfer has completed. The routine blocks all actions on other processes until it has completed its actions. None of the other answers.

Under what circumstance might an MPI_Send() operate as an MPI_Ssend()? If the available message buffer space becomes exhausted. If you specify more than a thousand bytes in the message. If the tags do not match. When the "synch" parameter is set in the parameter list of MPI_Send() Never