Solution-How long does the code have to run before the

How long does the code have to run before the clock gives

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Programmers should be familiar with message passing interface and how to distinguish between distributed memory and message passing systems.

Point-to-point communication time of a specific system can be found using the ping-pong method. One process P₀, is made to send a message to another process, say P₁. Immediately upon receiving the message, P₁ sends a message back to P₀. The time involved in this message communication is recorded at P₀. Then this time is divided by two to obtain an estimate of the time of one-way communication.

Implement a program in OpenMP that explores message passing interface and how a distributed memory system would also improve the ping-pong method. Measure the communication times. You can time a ping-pong program using the C clock function on your system. Then answer the following:

How long does the code have to run before the clock gives a nonzero run-time?
How do the times you got with the clock function compare to times taken with OpenMP or CUDA timing API? Explain your answer.

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How long does the code have to run before the clock gives

Reference no: EM133249408

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