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Le 31/08/2010 12:57, Paul CARRICO a écrit :
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<p class="MsoNormal">All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I don’t know if my question
is
interesting (or stupid) since I’m not skilled enough …<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">… it’s rather common to have
several cores in a processor (nay several processors with several
cores) =>
I would like to know if it’s possible to select a core for a
specific calculation ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">(I had a look in the help
documentation,
but ???)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">My idea is the following
(throughout an
example).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2 (and more) loops that can
be
performed in parallel :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For i = 1 : n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> A =
…..<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">end<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For i = 1 : n<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> B =
…..<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">end<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Loop 1 is perform a the core
1, loop 2 on
the 2 and so on …<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I noticed that a single
core/processor is
used … of course the goal is to increase speed up !<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Paul<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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</blockquote>
There is proactive for that purpose.<br>
<br>
<a class="moz-txt-link-freetext" href="http://www.scilab.org/projects/collaborations/proactive">http://www.scilab.org/projects/collaborations/proactive</a><br>
<br>
<a class="moz-txt-link-freetext" href="http://proactive.inria.fr/index.php?page=scilab">http://proactive.inria.fr/index.php?page=scilab</a><br>
<br>
Never used it, I don't know if it can fit your needs.<br>
<br>
Antoine<br>
<br>
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