[patch #7828] OpenBLAS detection in AX_BLAS

[Steven G. Johnson]

URL:
  <http://savannah.gnu.org/patch/?7828>

                 Summary: OpenBLAS detection in AX_BLAS
                 Project: GNU Autoconf Archive
            Submitted by: stevengj
            Submitted on: Wed 08 Aug 2012 04:33:25 PM EDT
                Priority: 5 - Normal
                  Status: None
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

The attached patch modifies AX_BLAS to detect the (free-software,
BSD-licensed) OpenBLAS library, a descendant of GotoBLAS
(http://xianyi.github.com/OpenBLAS/).

In my tests, OpenBLAS (which includes both the Fortran BLAS and also cblas, as
well as LAPACK, in -lopenblas) has somewhat better serial and parallel
performance than ATLAS, is vastly easier to install, and has some other
advantages (e.g. OpenMP support, runtime architecture detection to switch
compute kernels, ...).  Hence my patch checks for it before ATLAS.

Regards,
Steven G. Johnson



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File Attachments:


-------------------------------------------------------
Date: Wed 08 Aug 2012 04:33:25 PM EDT  Name: patch.txt  Size: 518B   By:
stevengj

<http://savannah.gnu.org/patch/download.php?file_id=26337>

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