Proteus: A high-performance parallel architecture simulator

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Proteus was built in 1991 to assist researchers who are developing parallel algorithms, but do not have access to expensive parallel computers in order to test them. The system stood out by being able to reconfigure itself, in order to simulate many different classes of MIMD (multiple instruction, multiple data) architectures. It also was about two orders of magnitude faster than other comparable tools available to the research community at that time. Proteus was extensively used by university researchers worldwide. Today, almost ten years after its first code release, a number of research groups have web pages devoted to the system. Its code is available for free download from a number of different sites.