Parallel systems improve processing and I/O speeds by using multiple CPUs and disks in parallel. Many operations are executed simultaneously.
There are two types of parallel machines :
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There are two types of parallel machines :
- A Coarse-grain Parallel Machine : Which consists of a small number of powerful processors.
- A Massively Parallel or Fine-grain Machine : Which uses thousands of smaller processors.
Massively parallel computers are distinguished from the coarse-grain parallel machines by the degree of parallelism that they support.
Most high-end machines today offer some degree of course-grain parallelism. Two or four processor machines are common. Parallel computers with hundreds of CPUS are also available.
Most high-end machines today offer some degree of course-grain parallelism. Two or four processor machines are common. Parallel computers with hundreds of CPUS are also available.