Development and acceleration of multiple precision arithmetic toolbox MuPAT for Scilab
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- Kikkawa Satoko
- Graduate School of Science, Tokyo University of Science
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- Saito Tsubasa
- Graduate School of Science, Tokyo University of Science
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- Ishiwata Emiko
- Tokyo University of Science
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- Hasegawa Hidehiko
- University of Tsukuba
抄録
MuPAT enables the users to easily treat quadruple and octuple precision arithmetics as well as double precision arithmetic on Scilab. Using external C routines, we have also developed a high speed implementation MuPAT_c for Windows, Mac OS, and Linux. MuPAT_c reduced the computation time especially for all octuple precision arithmetic and inner product of quadruple precision arithmetic. MuPAT_c can run 90-1200 times faster than MuPAT. We applied three different precisions to tridiagonalization by the Lanczos method and confirmed that a high precision arithmetic was essential for the Lanczos method to get accurate eigenvalues of real symmetric matrices.
収録刊行物
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- JSIAM Letters
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JSIAM Letters 5 (0), 9-12, 2013
一般社団法人 日本応用数理学会
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詳細情報
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- CRID
- 1390282680278279296
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- NII論文ID
- 130003371112
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- ISSN
- 18830617
- 18830609
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可