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<div class="moz-cite-prefix">Hello,<br>
<br>
Can you precise your Scilab version ? 5.5.2 ? 6.0.0 ? Or another
one...<br>
<br>
S.<br>
<br>
Le 02/03/2017 à 16:29, Michael Benguigui a écrit :<br>
</div>
<blockquote
cite="mid:CALvM90LrQW33RqfRcbf9Wu28Oy-rheaEcpAFdcL=ms15aGwixA@mail.gmail.com"
type="cite">
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<div>Hi all,</div>
<div>As a Scilab user, I am currently fighting to reach Matlab
performance..My current scilab program takes 4x more than my
matlab's vesion. Here are some instructions requiring some
optimizations.. If you have an idea... thanks a lot!</div>
<div><br>
</div>
<div>All times are cumulative times after the execution
(iterations)<br>
I used the Matlab and Scilab profilers<br>
tooth_psi_angle is a 70000x4 2D matrix of real numbers<br>
tool.forces.cutting_forces_teeth_TCS is a 72000x4x3 matrix of
real numbers<br>
process.fz is a scalar <br>
tool.kappa is a scalar</div>
<div><br>
if tool_angle(i) < tool.pitch_angle then<br>
h_total(i) = process.fz * sin(tooth_psi_angle(i,tooth)) *
sin(tool.kappa);</div>
<div><br>
</div>
<div>=> Matlab:<0.01s vs Scilab 4.8s</div>
<div><br>
ROT_LCS_TCS =[-cos(tooth_psi_angle(i,tooth))
-sin(tool.kappa)*sin(tooth_psi_angle(i,tooth))
-cos(tool.kappa)*sin(tooth_psi_angle(i,tooth));
sin(tooth_psi_angle(i,tooth))
-sin(tool.kappa)*cos(tooth_psi_angle(i,tooth))
-cos(tool.kappa)*cos(tooth_psi_angle(i,tooth)); 0
cos(tool.kappa) -sin(tool.kappa)]; // result is a 3x3 matrix</div>
<div><br>
=> Matlab:0.67s vs Scilab 4s</div>
<div><br>
tool.forces.cutting_forces_teeth_TCS(i,tooth,:) =
ROT_LCS_TCS*[ft;fr;fa];</div>
<div><br>
=> Matlab:0.55s vs Scilab 1.3s</div>
<div><br>
Regards<br>
Michael</div>
</div>
<br>
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</blockquote>
<br>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
Département de Génie Informatique
EA 4297 Transformations Intégrées de la Matière Renouvelable
Université de Technologie de Compiègne - CS 60319
60203 Compiègne cedex</pre>
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