Three-dimensional shock wave physics simulations with MIMD PAGOSA on massively parallel computers
- Sandia National Labs., Albuquerque, NM (United States)
- Texas Univ., Austin, TX (United States). Center for High Performance Computing
The numerical modeling of penetrator-armor interactions for design studies requires rapid, detailed, three-dimensional simulation of complex interactions of exotic materials at high speeds and high rates of strain. To perform such simulations, we have developed a multiple-instruction, multiple-data (MIMD) version of the PAGOSA hydrocode. The code includes a variety of models for material strength, fracture, and the detonation of high explosives. We present a typical armor/antiarmor penetration simulation conducted with this code, and measurements of its performance. The scaled speedups for MIMD PAGOSA 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 (computational time per cell per cycle) and parallel scaled efficiencies of 90% can be achieved for realistic problems. This simulation demonstrates that massively parallel hydrocodes can provide rapid, highly-detailed armor/ antiarmor simulations.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- DOE; DOD; USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6441718
- Report Number(s):
- SAND-92-2825C; CONF-930765--3; ON: DE93011682
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420200* -- Engineering-- Facilities
Equipment
& Techniques
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ARMOR
ARRAY PROCESSORS
COMPUTER CODES
COMPUTERIZED SIMULATION
IMPACT SHOCK
IMPACT TESTS
MATERIALS TESTING
MECHANICAL TESTS
P CODES
PARALLEL PROCESSING
PENETRATORS
PERFORMANCE
PROGRAMMING
SHOCK WAVES
SIMULATION
STRAINS
TESTING
THREE-DIMENSIONAL CALCULATIONS