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| -rw-r--r-- | docs/notes.rst | 15 |
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diff --git a/docs/notes.rst b/docs/notes.rst new file mode 100644 index 00000000..5d0ff827 --- /dev/null +++ b/docs/notes.rst @@ -0,0 +1,15 @@ +How to recompile openblas +------------------------- + +Some notes about how to recompile packages from unstable: +`<http://wiki.debian.org/DebianUnstable>`_ + +Openblas with Sandybridge target support is available in the experimental +repository in debian. I recompiled it as follows: +TARGET=SANDYBRIDGE USE_OPENMP=1 apt-get -b source openblas + +By default, it uses pthreads, instead of openmp, which was interfering +with other use of openmp in my code. If we dont' specify the target, it +builds a lot of different architectures, and the right one gets selected +at runtime. Unfortunately it doesn't include Sandybridge yet. + |