Optimizing the SU(3) lattice gauge theory algorithm on the NEC SX-2 supercomputer
Journal Article
·
· International Journal of Supercomputer Application; (USA)
- Dalhousie Univ., Halifax, Nova Scotia B3H 3J5 (CA)
In this paper, the SU(3) lattice gauge theory algorithm based on the Metropolis method is vectorized and optimized on the NEC SX-2 supercomputer, a vector uniprocessor. A link-update time of 14.8 {mu}sec is obtained. In the version of the Metropolis method with the checkerboard data ordering used on a Fujitsu VP-200, the number of calculations needed to evaluate the action from each plaquette was 76 multiplications and 24 additions, while in the new version for the NEC SX-2, the number of calculations is 18 multiplications and 24 additions. The NEC SX-2 algorithm is 1.2 times faster than the algorithm on the Fujitsu VP-400 supercomputer system, 2.7 times faster than on a single processor of the CRAY X-MP, and 1.8 times faster than on a four-pipeline CDC Cyber 205.
- OSTI ID:
- 7222427
- Journal Information:
- International Journal of Supercomputer Application; (USA), Journal Name: International Journal of Supercomputer Application; (USA) Vol. 3:4; ISSN 0890-2720; ISSN IJSAE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
99 GENERAL AND MISCELLANEOUS
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CALCULATION METHODS
COMPUTER CALCULATIONS
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DIGITAL COMPUTERS
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LIE GROUPS
OPTIMIZATION
PHYSICS
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SU GROUPS
SU-3 GROUPS
SUPERCOMPUTERS
SYMMETRY GROUPS
VECTOR PROCESSING