Massively Parallel Processor is a computer that has networked processors. It has many characteristics similar to cluster computers, but have specialized interconnect networks and are very larger than clusters spanning more than 100 processors. Each node, or processor has its own memory and OS and communicates with the other nodes through a high speed interconnect system via some messaging interface. The different processors work on the different parts of the program. These are also called ‘shared nothing’ or ‘loosely coupled’ systems. Example: The fifth fastest supercomputer Blue Gene/L.
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