https://www.baszerr.eu/ Thu, 07 May 2026 04:46:42 +0000 FeedCreator 1.8 https://www.baszerr.eu/lib/exe/fetch.php?media=wiki:dokuwiki.svg https://www.baszerr.eu/ https://www.baszerr.eu/doku.php?id=blog:2011:04:27:1 <h1 class="sectionedit1" id="vector_operations">2011.04.27 - vector operations</h1> <div class="level1"> <p> today i went through few presentation regarding vector computations on x86 <a href="http://people.redhat.com/drepper/summit09-stream.pdf" class="urlextern" title="http://people.redhat.com/drepper/summit09-stream.pdf" rel="ugc nofollow">1</a> <a href="http://people.redhat.com/drepper/lt2009.pdf" class="urlextern" title="http://people.redhat.com/drepper/lt2009.pdf" rel="ugc nofollow">2</a> <a href="http://people.redhat.com/drepper/parallelprog.pdf" class="urlextern" title="http://people.redhat.com/drepper/parallelprog.pdf" rel="ugc nofollow">3</a>, which nowadays mostly means using <a href="https://en.wikipedia.org/wiki/Streaming_SIMD_Extensions" class="interwiki iw_wp" title="https://en.wikipedia.org/wiki/Streaming_SIMD_Extensions">SSE</a> instructions. author suggests that most of the times it has to be used explicitly, in order to be used at all. to be honest i haven&#039;t used these instructions in real-life applications yet. it can be an interesting topic to learn, though, honestly in any more complicated code i&#039;d prefer to relay on some good library to do this for me. <a href="https://en.wikipedia.org/wiki/C++" class="interwiki iw_wp" title="https://en.wikipedia.org/wiki/C++">C++</a>&#039;s templates is mechanism good enough to hide these details. if you add <a href="https://en.wikipedia.org/wiki/C++0x" class="interwiki iw_wp" title="https://en.wikipedia.org/wiki/C++0x">C++0x</a> features like rvalue reference, you&#039;re home. </p> </div> anonymous@undisclosed.example.com (Anonymous) Tue, 15 Jun 2021 20:09:39 +0000