FACOM VP-100/200: Supercomputers with ease of use

Tamura, Hiroshi; Kamiya, Sachio; Ishigai, Takahiro

doi:10.1016/0167-8191(85)90022-5

Cited by 9 publications

(1 citation statement)

References 2 publications

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“…The vectorization includes changing the program structure, replacing kernel algorithms, tuning the DO-loop structure of subroutines, etc. Since the installation of two FACOM VP-100s (Tamura, Kamiya, and Ishigai, 1985) at JAERI during the period [1984][1985][1986], the vectorized codes have been used in various nuclear research fields, including reactor safety analysis, design of the 'Tokamak fusion system, and reactor engineering. This report summarizes our analysis of the vectorization of a large number of codes at JAERI and analyzes their status and performance on the FACOM VP-100.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Vectorized Nuclear Codes On a Facom Vp-100 At the Japan Atomic Energy Research Institute

Ishiguro

Harada

Makino

et al. 1987

The International Journal of Supercomputing Applications

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We have evaluated the performance of vectorized nuclear codes used at the Japan Atomic Energy Institute. Forty nuclear codes were restructured for vectorization, with an average vectorization of 83%. The vector to scalar ratio for modified code performance is about 5. Vectorization improved performance in most cases, but certain codes, including LOCA and Monte Carlo codes, required considerable effort to vectorize, without high performance gains. We discuss the barriers to achieving high performance, and the need to consider applications characteristics when evaluating system performance.

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Section: Introductionmentioning

confidence: 99%