tjh.dev
1<section xmlns="http://docbook.org/ns/docbook"
2 xmlns:xlink="http://www.w3.org/1999/xlink"
3 xml:id="dlib">
4 <title>DLib</title>
5
6 <para>
7 <link xlink:href="http://dlib.net/">DLib</link> is a modern, C++-based toolkit which provides several machine learning algorithms.
8 </para>
9
10 <section xml:id="compiling-without-avx-support">
11 <title>Compiling without AVX support</title>
12
13 <para>
14 Especially older CPUs don't support <link xlink:href="https://en.wikipedia.org/wiki/Advanced_Vector_Extensions">AVX</link> (<abbrev>Advanced Vector Extensions</abbrev>) instructions that are used by DLib to optimize their algorithms.
15 </para>
16
17 <para>
18 On the affected hardware errors like <literal>Illegal instruction</literal> will occur. In those cases AVX support needs to be disabled:
19<programlisting>self: super: {
20 dlib = super.dlib.override { avxSupport = false; };
21}</programlisting>
22 </para>
23 </section>
24</section>