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Development of Performance Estimation System for the Earth Simulator

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  • 地球シミュレータ用性能評価システムの開発

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The Earth simulator is a distributed memory parallel system which consists of 640 processor nodes connected by a cross barnetwork. Each processor node is a shared memory system which is composed of eight vector processors. The total peak performance and main memory are 40Tflop/s and 10TB, respectively. A software simulator (GSSS) for the Earth Simulator and its similar computers has been developed to estimate the sustained performance of programs. To validate an accuracy of the software simulator, the processing times for some kernel DO loops estimated by the GSSS are compared with the ones measured on an SX-4. It is found that the absolute relative error of the processing time is about 1% in average. The sustained performance of the kernel loops on the Earth Simulator has been estimated by the GSSS and a performance of 4.18Gflop/s in average is obtained.


  • IPSJ SIG Notes

    IPSJ SIG Notes 132 55-60, 1999-03-04

    Information Processing Society of Japan (IPSJ)

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