Development and acceleration of multiple precision arithmetic toolbox MuPAT for Scilab

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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

  • JSIAM Letters

    JSIAM Letters 5(0), 9-12, 2013

    一般社団法人 日本応用数理学会

各種コード

  • NII論文ID(NAID)
    130003371112
  • 本文言語コード
    ENG
  • ISSN
    1883-0609
  • データ提供元
    J-STAGE 
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