NTA-NET (UGC-NET) Computer Science & Applications (87) Current Trends and Technologies-Parallel Computing Study Material (Page 7 of 13)

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Parallel Virtual Machine (PVM) and Message Passing Interface (MPI) : Communication Routines & Most Common Communication Routines in MPI

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Communication Routines

a. MPI_Init () – As the name suggests, it starts the MPI runtime environment.

b. MPI_Finalize () – It is supposed to shut down the MPI runtime environment.

c. MPI_Comm_size () – It gets the number of processes, usually given as Np.

d. MPI_Comm_rank () – It gets the process ID of the current process which will be between the range of 0 and Np − 1, inclusive of both.

Most Common Communication Routines in MPI

Let us now see the most common communication routines which are used in the MPI,

a. MPI_Send () – It sends a message from the current process to another proc…

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Parallel Virtual Machine (PVM) and Message Passing Interface (MPI) : Communication Routines Overview

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Communication Routines

In conclusion, let՚s see the overview of the MPI communication routines through its aspects,

i. Point to Point Communication – The MPI provides a set of send and receive functions that allow the communication of typed data with an associated message tag. The tag allows selectivity of messages at the re…

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