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<div class="moz-cite-prefix">Hi Paul<br>
<br>
Have you/he/she looked into parallel_run() ?<br>
<br>
Best regards,<br>
Claus<br>
<br>
On 22-10-2016 09:33, <a class="moz-txt-link-abbreviated" href="mailto:paul.carrico@free.fr">paul.carrico@free.fr</a> wrote:<br>
</div>
<blockquote
cite="mid:2086415799.425433287.1477121604275.JavaMail.root@zimbra5-e1.priv.proxad.net"
type="cite">
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<div style="font-family: times new roman,new york,times,serif;
font-size: 12pt; color: #000000"><span style="font-size: 12pt;">Hi
All</span>
<div style="font-size: 12pt;"><br>
</div>
<div style="font-size: 12pt;">Maybe my previous email was
unclear, but the example hereafter summarizes what I would
like to do :</div>
<div style="font-size: 12pt;">- here function is launched when
the previous is finished ("sequential way"),</div>
<div style="font-size: 12pt;">- it is possible to launch them <span
style="font-family: Arial; font-size: 12px; text-indent:
-12px; background-color: rgb(255, 255, 255);"><span
style="font-size: 14px; cursor:
url("http://cdn2.reverso.net/lexi/v1810/static/img/CM.cur"),
auto;"><span id="ID0EKB" direction="targettarget"
style="cursor:
url("http://cdn2.reverso.net/lexi/v1810/static/img/CM.cur"),
auto;">simultaneously?</span></span></span></div>
<div style="font-size: 12pt;"><br>
</div>
<div style="font-size: 12pt;"><i><u>Nb</u></i>: I'm currently on
Scilab 5.5.4 and maybe only the latest beta release allows
this ?</div>
<div style="font-size: 12pt;"><br>
</div>
<div style="font-size: 12pt;">If I can do this, then "bingo" </div>
<div style="font-size: 12pt;"><br>
</div>
<div style="font-size: 12pt;">Thanks</div>
<div style="font-size: 12pt;"><br>
</div>
<div style="font-size: 12pt;">Paul</div>
<div style="font-size: 12pt;">---------------------------------------------------------------</div>
<div>
<pre style="font-family: Monospaced;"><font size="4"><span style="color: rgb(50, 185, 185);">mode</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(188, 143, 143);">0</span><span style="color: rgb(74, 85, 219);">)</span>
<span style="color: rgb(176, 24, 19);">function</span> <span style="color: rgb(131, 67, 16);">status</span><span style="color: rgb(92, 92, 92);">=</span><span style="text-decoration: underline;">test</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(131, 67, 16);">i</span>, <span style="color: rgb(131, 67, 16);">t</span><span style="color: rgb(74, 85, 219);">)</span>
<span style="color: rgb(50, 185, 185);">printf</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(188, 143, 143);">"</span><span style="color: rgb(188, 143, 143);">function %d is launched\n</span><span style="color: rgb(188, 143, 143);">"</span>,<span style="color: rgb(131, 67, 16);">i</span><span style="color: rgb(74, 85, 219);">)</span>;
<span style="color: rgb(50, 185, 185);">sleep</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(131, 67, 16);">t</span><span style="color: rgb(92, 92, 92);">*</span><span style="color: rgb(188, 143, 143);">1000</span><span style="color: rgb(74, 85, 219);">)</span>;
<span style="color: rgb(50, 185, 185);">printf</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(188, 143, 143);">"</span><span style="color: rgb(188, 143, 143);">function %d is endeed\n\n</span><span style="color: rgb(188, 143, 143);">"</span>,<span style="color: rgb(131, 67, 16);">i</span><span style="color: rgb(74, 85, 219);">)</span>;
<span style="color: rgb(131, 67, 16);">status</span> <span style="color: rgb(92, 92, 92);">=</span> <span style="color: rgb(188, 143, 143);">0</span>;
<span style="color: rgb(176, 24, 19);">endfunction</span>
<span style="color: rgb(100, 174, 100);">// the duration is expressed in second(s)</span>
status <span style="color: rgb(92, 92, 92);">=</span> <span style="text-decoration: underline;">test</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(188, 143, 143);">1</span>,<span style="color: rgb(188, 143, 143);">1</span><span style="color: rgb(74, 85, 219);">)</span>;
status <span style="color: rgb(92, 92, 92);">=</span> <span style="text-decoration: underline;">test</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(188, 143, 143);">2</span>,<span style="color: rgb(188, 143, 143);">3</span><span style="color: rgb(74, 85, 219);">)</span>;
status <span style="color: rgb(92, 92, 92);">=</span> <span style="text-decoration: underline;">test</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(188, 143, 143);">3</span>,<span style="color: rgb(188, 143, 143);">5</span><span style="color: rgb(74, 85, 219);">)</span>;
status <span style="color: rgb(92, 92, 92);">=</span> <span style="text-decoration: underline;">test</span><span style="color: rgb(74, 85, 219);">(</span><span style="color: rgb(188, 143, 143);">4</span>,<span style="color: rgb(188, 143, 143);">7</span><span style="color: rgb(74, 85, 219);">)</span>;</font></pre>
<br>
<hr id="zwchr" style="font-size: 12pt;">
<div style="font-size: 12pt; color: rgb(0, 0, 0); font-weight:
normal; font-style: normal; text-decoration: none;
font-family: Helvetica, Arial, sans-serif;"><b>De: </b>"Paul
Carrico" <a class="moz-txt-link-rfc2396E" href="mailto:paul.carrico@esterline.com"><paul.carrico@esterline.com></a><br>
<b>À: </b>"International users mailing list for Scilab.
(<a class="moz-txt-link-abbreviated" href="mailto:users@lists.scilab.org">users@lists.scilab.org</a>)" <a class="moz-txt-link-rfc2396E" href="mailto:users@lists.scilab.org"><users@lists.scilab.org></a><br>
<b>Envoyé: </b>Jeudi 20 Octobre 2016 15:41:18<br>
<b>Objet: </b>[Scilab-users] scilab and "parallelization"
objectives<br>
<br>
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<p class="MsoNormal">Dear All,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-US">My internship had
an interesting request and I’m not able to answer to
him </span><span style="font-family:Wingdings"
lang="EN-US">JJ</span><span lang="EN-US"></span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">The context is the
following one:</span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span
lang="EN-US"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-US">We are using
a parallel finite element solver on
<b><u>4 processors</u></b> (under Linux),</span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span
lang="EN-US"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-US">We are
performing optimization with an external optimizer,</span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span
lang="EN-US"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-US">Scilab has
been interfaced with both the optimizer and the
solver,</span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span
lang="EN-US"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-US">For the
moment, the optimization loops are “basically”
performed using the parallelization capabilities of
the solvers.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">In practice,
Scilab “runs” the solver and “waits” the end of the
simulation (always using 4 processors) before
calculating the cost function value, giving the later
value to the optimizer and then closing.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><b><u><span lang="EN-US">Imagine that
now</span></u></b><span lang="EN-US"> we would
like to run
<b><u>4 different simulations each on 1 processor</u></b>
in order to determine the gain (CPU time) … how to
proceed ?</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">In practice Scilab
must be able to :</span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span
lang="EN-US"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-US">Launch 1rst
calculation and to handback …</span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><span
lang="EN-US"><span style="mso-list:Ignore">-<span
style="font:7.0pt "Times New Roman"">
</span></span></span><span lang="EN-US">… to launch
the 2<sup>nd</sup> one … and so on</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">We can imagine
creating <u>a function per calculation
</u>(and I prefer in order to mix stuffs), then
running independently but at the same time the
different functions.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Honestly I’ve
never done this before and I’m wondering how to
proceed … or if it is possible : any feedback on it ?</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks and regards</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Paul</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p><b><i><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:gray">EXPORT
CONTROL :
<br>
</span></i></b><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Cet
email ne contient pas de données techniques<br>
This email does not contain technical data</span></b></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
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<br>
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