Parallel versus distributed computing

While both distributed computing and parallel systems are widely available these days, the main difference between these two is that a parallel computing system consists of multiple processors that communicate with each other using a shared memory, whereas a distributed computing system contains multiple processors connected by a communication network.

In parallel computing systems, as the number of processors increases, with enough parallelism available in applications, such systems easily beat sequential systems in performance through the shared memory. In such systems, the processors can also contain ...

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