Performance of a plasma fluid code on the Intel parallel computers

Conference · Sun Nov 01 04:00:00 EST 1992

DOI:https://doi.org/10.1109/SUPERC.1992.236674· OSTI ID:10138745

Lynch, V. E. ^[1]; Carreras, B. A. ^[1]; Drake, J. B. ^[1]; Leboeuf, J. N. ^[2]; Liewer, P. ^[3]

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1. Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
2. Oak Ridge National Lab., TN (United States)
3. Jet Propulsion Lab., Pasadena, CA (United States)

One approach to improving the real-time efficiency of plasma turbulence calculations is to use a parallel algorithm. A parallel algorithm for plasma turbulence calculations was tested on the Intel iPSC/860 hypercube and the Touchtone Delta machine. Using the 128 processors of the Intel iPSC/860 hypercube, a factor of 5 improvement over a single-processor CRAY-2 is obtained. For the Touchtone Delta machine, the corresponding improvement factor is 16. For plasma edge turbulence calculations, an extrapolation of the present results to the Intel {sigma} machine gives an improvement factor close to 64 over the single-processor CRAY-2.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10138745
• Report Number(s): CONF-921125--1; ON: DE92011680
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330
97 MATHEMATICS AND COMPUTING
990200
ALGORITHMS
CHARGED-PARTICLE TRANSPORT
COMPUTER CALCULATIONS
EFFICIENCY
HYPERCUBE COMPUTERS
MAGNETIC CONFINEMENT
MATHEMATICS AND COMPUTERS
PARALLEL PROCESSING
PERFORMANCE
PLASMA KINETICS, TRANSPORT, AND IMPURITIES
TURBULENT FLOW