Other Platforms
Compaq AlphaServer SC at Pittsburgh Supercomputing Center: 750 ES45 4-way SMP nodes (1GHz Alpha EV68) and a Quadrics QsNet interconnect with two interconnect interfaces per node.
Compaq AlphaServer SC at ORNL: 64 ES40 4-way SMP nodes (667MHz Alpha EV67) and a Quadrics QsNet interconnect with one interconnect interface per node.
IBM SP at the National Energy Research Supercomputer Center (NERSC): 184 Nighthawk II 16-way SMP nodes (375MHz POWER3-II) and an SP Switch2 with two switch interfaces per node.
IBM SP at ORNL: 176 Winterhawk II 4-way SMP nodes (375MHz POWER3-II) and an SP Switch with one switch interface per node.
Cray Research T3E-900 at NERSC: 644 Alpha 21164 (EV5) processors running at 450 MHz and a 3-D torus interconnect.