Shock wave physics simulations on MIMD parallel computers
- Sandia National Laboratories, Albuquerque, NM (United States)
The numerical modeling of shock wave physics events such as the interaction of penetrators with armor and the formation of shaped-change jets requires detailed, three-dimensional simulation of the dynamic deformation and complex interactions of exotic materials at high rates of strain. To perform such simulations, the authors have developed multiple-instruction, multiple-data (MIMD) versions of the PAGOSA and CTH hydrocodes. The codes include a variety of models for material strength, fracture, and the detonation of high explosives. The scaled speedups for the codes on the 1024-processor nCUBE 2 parallel computer, measured as the simulation size is increased with the number of processors, reveal that small grind times and parallel efficiencies of nearly 90% can be achieved for realistic problems. These simulations demonstrate that massively parallel hydrocodes can provide rapid, highly-detailed shock wave physics simulations.
- Research Organization:
- Sandia National Laboratory
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 272803
- Report Number(s):
- CONF-930557--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 5 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
- Country of Publication:
- United States
- Language:
- English
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