Two MPI_Irecv calls are made specifying different buffers and tags, but the same sender and request location. How can one determine that the buffer specified in the first call has valid data?

Related MCQs

• MPI provides a function ________, for packing data into a buffer of contiguous memory.
• Requesting node sending the requested data starting from the memory, and the requestor which has made the only sharing node, known as ________.
• _________________ generate log files of MPI calls.
• _______________ causes no synchronization overhead and can maintain data locality when data fits in cache.
• A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called:
• The ____________ directive ensures that a specific memory location is updated atomically, rather than exposing it to the possibility of multiple, simultaneous writing threads.
• The signal operation of the semaphore basically works on the basic _______ system call.
• A ______________ construct by itself creates a “single program multiple data” program, i.e., each thread executes the same code.
• _____________ refers to the ability of multiple process (or threads) to share code, resources or data in such a way that only one process has access to shared object at a time.
• Which of the following is not valid with reference to Message Passing Interface (MPI)?