The following are systems that are maintained by iCLASS.

Bluegrit

Bluegrit is a JS20 cluster system with > 70 IBM PC 970 processors.
Bluegrit Technical Support Website
Getting Started with Bluegrit tutorial
Check Out System Specifications

Matisse

Matisse is a tiled visualization display with 6 ThinkVision L200P LCD monitors.
Check Out System Specifications