A modified Block IDR($s$) method for computing high accuracy solutions
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概要
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In this paper, the difference between the residual and the true residual caused by the computation errors that arise in matrix multiplications for solutions generated by the Block IDR($s$) method is analyzed. Moreover, in order to reduce the difference between the residual and the true residual, a modified Block IDR($s$) method is proposed. Numerical experiments demonstrate that the difference under the proposed method is smaller than that of the conventional Block IDR($s$) method.
著者
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Sakurai Tetsuya
Department Of Computer Science University Of Tsukuba
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TADANO Hiroto
Department of Computer Science, University of Tsukuba
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Tadano Hiroto
Department Of Computer Science University Of Tsukuba
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Naito Michihiro
Department of Computer Science, University of Tsukuba
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