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The 2 is a distributed memory machine based on the IBM
Power2 chipset. Each node is, effectively, an independent workstation
with its own operating system, paging space, and local disk space. The
nodes are connected in a flat topology, with a high-speed crossbar
switch that has a peak performance of MB/s. We ran tests on the
2's of the University of Oklahoma and the Cornell Theory Center
equipped with MHz ``thin-node 2'' nodes with 128 to MB
memory, GB local disk space. In addition, both 2's have a
parallel filesystem (PIOFS) that allows parallel IO to improve
performance.
Peter H. Hauschildt
4/27/1999