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Posted to issues@commons.apache.org by "Luc Maisonobe (JIRA)" <ji...@apache.org> on 2013/03/13 13:58:16 UTC

[jira] [Resolved] (MATH-580) FastMath Performance Test should use larger ranges where the functions support them

     [ https://issues.apache.org/jira/browse/MATH-580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Luc Maisonobe resolved MATH-580.
--------------------------------

    Resolution: Fixed

Fixed in subversion repository as of r1455921.

The extension was done in the individual tests, not in the global catch-all one. The results show that for large ranges, there are some important slow down (for example for asin/acos/atan, probably due to range reduction).
                
> FastMath Performance Test should use larger ranges where the functions support them
> -----------------------------------------------------------------------------------
>
>                 Key: MATH-580
>                 URL: https://issues.apache.org/jira/browse/MATH-580
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Sebb
>             Fix For: 3.2
>
>
> FastMath calculations should be faster than Math, especially over larger ranges of operands.
> The Performance test code currently uses a very small range of operands (probably so the same range can be used for all tests).
> The test should be enhanced to use much larger ranges where this is supported by the function under test.

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