patchGNU Autoconf Archive - Patches: patch #7828, OpenBLAS detection in AX_BLAS


patch #7828: OpenBLAS detection in AX_BLAS

Submitted by:  Steven G. Johnson <stevengj>
Submitted on:  Wed 08 Aug 2012 08:33:25 PM UTC  
Priority: 5 - NormalStatus: Done
Assigned to: Peter Simons <simons>Open/Closed: Closed

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Fri 07 Sep 2012 08:42:28 AM UTC, comment #1:

Pushed to the Git repository in c78c8c763254ad0086bc8bd5c714cba0425080b2. Thank your very much for the patch.

Peter Simons <simons>
Project AdministratorIn charge of this item.
Wed 08 Aug 2012 08:33:25 PM UTC, original submission:

The attached patch modifies AX_BLAS to detect the (free-software, BSD-licensed) OpenBLAS library, a descendant of GotoBLAS (

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.

Steven G. Johnson

Steven G. Johnson <stevengj>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach File(s):

Attached Files
file #26337:  patch.txt added by stevengj (518B - text/plain)


Depends on the following items: None found

Items that depend on this one: None found


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  • -unavailable- added by simons (Posted a comment)
  • -unavailable- added by stevengj (Submitted the item)

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    Follow 5 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 09 Sep 2012 09:03:22 PM UTCsimonsStatusReady For Test=>Done
    Fri 07 Sep 2012 08:42:28 AM UTCsimonsStatusNone=>Ready For Test
      Assigned toNone=>simons
    Wed 08 Aug 2012 08:33:25 PM UTCstevengjAttached File-=>Added patch.txt, #26337

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