Implementation of a Monte Carlo algorithm for neutron transport on a massively parallel SIMD machine

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:6818068

Baker, R S

We present some results from the recent adaptation of a vectorized Monte Carlo algorithm to a massively parallel architecture. The performance of the algorithm on a single processor Cray Y-MP and a Thinking Machine Corporations CM-2 and CM-200 is compared for several test problems. The results show that significant speedups are obtainable for vectorized Monte Carlo algorithms on massively parallel machines, even when the algorithms are applied to realistic problems which require extensive variance reduction. However, the architecture of the Connection Machine does place some limitations on the regime in which the Monte Carlo algorithm may be expected to perform well.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6818068
• Report Number(s): LA-UR-92-4364; CONF-930404-2; ON: DE93005461
• Resource Relation: Conference: International topical meeting on mathematical methods and supercomputing in nuclear application (M C+SNA '93), Karlsruhe (Germany), 19-23 Apr 1993
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MONTE CARLO METHOD
VECTOR PROCESSING
NEUTRON TRANSPORT
ALGORITHMS
ARRAY PROCESSORS
COMPARATIVE EVALUATIONS
CALCULATION METHODS
EVALUATION
MATHEMATICAL LOGIC
NEUTRAL-PARTICLE TRANSPORT
PROGRAMMING
RADIATION TRANSPORT
663610* - Neutron Physics- (1992-)
990200 - Mathematics & Computers