Expo/Computation/The Metacomputer

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The Silicon Graphics Pyramid

Silicon Graphics Pyramid

At the head of the second computer family is the Silicon Graphics Power Challenge Array four networked Challenge machines with 20 processors each for number crunching.

Power Challenge Array
Wilmer Zehr, access
Shankar Subramaniam and Eric Jakobsson, computational biologists at NCSA, find that the SGI family of computers, which use a shared memory system, is particularly well suited to their problems. Problems in computational biology typically require a lot of communication between processors, making a shared memory system ideal.

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NCSA's Power Challenge Array (October 1995) has:

The Power Challenge array is accompanied by several Onyx and Power Onyx systems (used to drive The CAVE, ImmersaDesk and other advanced virtual environments), as well as a classroom of Indigo-2 workstations and numerous desktop Indy workstations. All the NCSA SGI systems use the same operating system (IRIX). This means that an application can be developed on the desktop, then scaled up to run an SGI supercomputing system without any major modifications of the code.
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Copyright, (c) 1995: Board of Trustees, University of Illinois

NCSA. Last modified 11/4/95.