Question

Why interaction and communication is required in parallel computing ? How to minimize the overhead of the same?

Answer 1

Answer:

Interaction and communication is required in parallel computing because process interaction relates to the mechanisms by which parallel processes are able to communicate with each other. The most common forms of interaction are shared memory and message passing, but interaction can also be implicit (invisible to the programmer). which relates to the programming.

A fundamental technique for reducing the interaction overhead is to minimize the overall volume of shared data that needs to be accessed by concurrent processes.

Another way of decreasing the amount of shared data that are accessed by multiple processes is to use local data to store intermediate results, and perform the shared data access to only place the final results of the computation.

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