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Parallel computer, parallel LU-factorization method, and parallel LU-factorization program
Parallel computer, parallel LU-factorization method, and parallel LU-factorization program
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机译：并行计算机，并行LU分解方法和并行LU分解程序
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摘要
A parallel LU-factorization method executed in a parallel computer including a plurality of processing nodes which execute LU-factorization in parallel, the method causes each of the plurality of processing nodes to execute processing of; measuring a first time period, which is a time period from when a matrix product for a matrix of a first size is completed to when communication with a different processing node out of the plurality of processing nodes is completed; and altering a size of a matrix to be used for a matrix product to a second size smaller than the first size in a case where the measured first time period is equal to or longer than a predetermined time period.
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