TY - GEN
T1 - Solving the Boltzmann equation at 61 Gigaflops on a 1024-Node CM-5
AU - Long, L. N.
AU - Myczkowski, J.
PY - 1993
Y1 - 1993
N2 - This paper documents the use of a massively parallel computer, specifically the Connection Machine CM-5, to solve the Boltzmann equation to model one-dimensional shock wave structure, a boundary layer, and general 3-D flow fields. The Bhatnagar-Gross-Krook (BGK) model for the collision term combined with a finite difference scheme was used to model the flow. This collision terms requires accurate knoweldge of the density, temperature, and mean velocity. Great care must be taken in their calculation to insure conservation, which proved to be the most difficult part. The algorithm, however, is well suited to the Connection Machine, and accurate results were obtained with great efficiency. The 1-D version of the code (which actually models a 5-D problem in phase space) was optimized for the CM-5 and sustained 61 gigaflops on a 1024-node CM-5.
AB - This paper documents the use of a massively parallel computer, specifically the Connection Machine CM-5, to solve the Boltzmann equation to model one-dimensional shock wave structure, a boundary layer, and general 3-D flow fields. The Bhatnagar-Gross-Krook (BGK) model for the collision term combined with a finite difference scheme was used to model the flow. This collision terms requires accurate knoweldge of the density, temperature, and mean velocity. Great care must be taken in their calculation to insure conservation, which proved to be the most difficult part. The algorithm, however, is well suited to the Connection Machine, and accurate results were obtained with great efficiency. The 1-D version of the code (which actually models a 5-D problem in phase space) was optimized for the CM-5 and sustained 61 gigaflops on a 1024-node CM-5.
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U2 - 10.1145/169627.169795
DO - 10.1145/169627.169795
M3 - Conference contribution
AN - SCOPUS:0027721229
SN - 0818643404
SN - 9780818643408
T3 - Proceedings of the Supercomputing Conference
SP - 528
EP - 534
BT - Proceedings of the Supercomputing Conference
PB - Publ by IEEE
T2 - Proceedings of the Supercomputing '93 Conference
Y2 - 15 November 1993 through 19 November 1993
ER -