Concept

ASCI White

Résumé
ASCI White was a supercomputer at the Lawrence Livermore National Laboratory in California, which was briefly the fastest supercomputer in the world. It was a computer cluster based on IBM's commercial RS/6000 SP computer. 512 nodes were interconnected for ASCI White, with each node containing sixteen 375 MHz IBM POWER3-II processors. In total, the ASCI White had 8,192 processors, 6 terabytes (TB) of memory, and 160 TB of disk storage. It was almost exclusively used for large-scale computations requiring dozens, hundreds, or thousands of processors. The computer weighed 106 tons and consumed 3 MW of electricity with a further 3 MW needed for cooling. It had a theoretical processing speed of 12.3 teraFLOPS (TFLOPS). A single modern 4U rackmount server could match these specifications while weighing under 50 kg and consuming under 2 kW of power. The system ran IBM's AIX operating system. ASCI White was made up of three individual systems,
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