1 | Consider "nodes" = printed circuit boards (Paragon) or bunch of printed circuit boards sharing a BUS (SGI Challenge) where the N nodes are connected as a distributed memory architecture |
2 | Inside each node, may have n=2,4,8 .... processors sharing a single memory. |
3 | Should one use this shared memory or just consider total machine as distributed with Nn nodes? |
4 | This is seen today (1995) as a network of SGI Challenge systems (i.e. metacomputer where conventional HIPPI network joins set of shared memory machines) or as a specialized torus network connecting Paragon nodes consisting of multiple i860's |