Paragon is a version of the experimental Touchstone Delta system built at Caltech,
Later in the spring of 1992, the Paragon was upgraded to 400 compute nodes, bringing its peak speed to 40 gigaflops for 32-bit arithmetic making the Paragon at SDSC one of the world’s fastest supercomputers. A special feature of the Paragon at SDSC was that 64 of its 400 compute nodes had 32 Mbytes of memory each, double the normal memory per node, resulting in a total memory of more than 7 Gbytes. The Paragon superseded Intel’s earlier iPSC/860 system, to which it is closely related.