ASCI Technology Prospectus; Simulation and Computational Science, DOE/DP/AST-ATP-001/SAND2001-1765P

[2], viii, 84, [6] pages. Illustrations (most in color). Definitions and URLs. Technology Roadmaps. Figures. The U.S. Department of Energy (DOE) established the Accelerated Strategic Computing Initiative (ASCI) in 1996. The goal of ASCI is to simulate the results of new weapons designs as well as the effects of aging on existing and new designs, all in the absence of additional data from underground nuclear tests. This was a daunting challenge and required simulation capabilities that far surpassed those then available. The Advanced Simulation and Computing Program (or ASC), which grew out of the Accelerated Strategic Computing Initiative, is a super-computing program run by the National Nuclear Security Administration, in order to simulate, test, and maintain the United States nuclear stockpile. The program was created in 1995 in order to support the Stockpile Stewardship Program (or SSP). The goal of the initiative is to extend the lifetime of the current aging stockpile. One of the Technology Road Maps in this document is for Grid Services. The ASCI Grid Services (initially called Distributed Resource Management) project was started under DisCom when distant and distributed computing was identified as a technology critical to the success of the ASCI Program. The goals of the Grid Services project has and continues to be to provide easy, consistent access to all the ASCI hardware and software resources across the nuclear weapons complex using computational grid technologies, increase the usability of ASCI hardware and software resources by providing interfaces for resource monitoring, job submission, job monitoring, and job control, and enable the effective use of high-end computing capability through complex-wide resource scheduling and brokering. In order to increase acceptance of the new technology, the goal included providing these services in both the unclassified as well as the classified user's environment.…