UGC-NET | UGC NET CS 2015 Jun – II | Question 47

Which of the following statements is incorrect for Parallel Virtual Machine (PVM) ?
(A) The PVM communication model provides asynchronous blocking send, asynchronous blocking receive, and non-blocking receive function.
(B) Message buffers are allocated dynamically.
(C) The PVM communication model assumes that any task can send a message to any other PVM task and that there is no limit to the size or number of such messages.
(D) In PVM model, the message order is not preserved.

Answer: (D)
Explanation:

• The PVM communication model provides asynchronous blocking send, asynchronous blocking receive, and non-blocking receive function. Correct
• Message buffers are allocated dynamically. Correct
• The PVM communication model assumes that any task can send a message to any other PVM task and that there is no limit to the size or number of such messages. Correct
• In PVM model, the message order is not preserved. Incorrect because it is preserved.

So, option (D) is correct.
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