[openblas] 01/01: d/README.Debian: explain that recompilation is useful on non-x86 archs.

[Sébastien Villemot]

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commit 2a59ea9cac75f000b4881bea48687567b38af064
Author: Sébastien Villemot <sebastien at debian.org>
Date:   Tue Sep 6 11:36:17 2016 +0200

    d/README.Debian: explain that recompilation is useful on non-x86 archs.
---
 debian/README.Debian | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/debian/README.Debian b/debian/README.Debian
index 971b60f..381e451 100644
--- a/debian/README.Debian
+++ b/debian/README.Debian
@@ -12,15 +12,20 @@ More information is available at:
  http://wiki.debian.org/DebianScience/LinearAlgebraLibraries
 
 
-Building an optimized OpenBLAS packages on your architecture
-============================================================
+Building an optimized OpenBLAS package for your machine
+=======================================================
 
-Note that libopenblas-base provides a multiple architecture library. All
-kernels are included in the library and the one matching your architecture is
-selected at run time.
+On amd64 and i386, libopenblas-base provides a multiple architecture library.
+All kernels are included in the library and the one matching your architecture
+is selected at run time. Recompiling locally should bring minimal performance
+improvement.
 
-If you nevertheless want to create a custom OpenBLAS package, optimized only
-for your specific machine, proceeds as follows.
+On the contrary, on non-x86 archs, the package is compiled with minimal
+optimizations, so that it can run on all hardware. You may want to recompile it
+locally for optimal performance.
+
+If you want to create a custom OpenBLAS package, optimized for your specific
+machine, proceed as follows.
 
 Install the build dependencies:
 
@@ -40,5 +45,5 @@ It should produce a package that you can install with:
 
 $ sudo dpkg -i ../libopenblas-base_<DEBVERSION>.deb
 
- -- Sébastien Villemot <sebastien at debian.org>, Tue,  5 Aug 2014 16:52:28 +0200
+ -- Sébastien Villemot <sebastien at debian.org>, Tue,  6 Sep 2016 11:36:05 +0200
  -- Sylvestre Ledru <sylvestre at debian.org>  Tue, 31 May 2011 13:56:22 +0200

-- 
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