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<p class=MsoNormal>Dear all,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>I have a
question regarding the random behaviour of Gmsh. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Basically,
every time I run Gmsh on the same file I get a different mesh. Sometimes the
differernce is very small, but there are times when it quite large. For
example, for the same CAD file and meshing parameters, half of the time I am
getting a good mesh while half of the time I get one that crashes the solver (because
of a few “flat” elements). <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Doing
some googleing on the subject I found out that this is the intended behaviour
of Gmsh and that this randomness cannot be stopped. However, it is very
inconvenient for us, one reason being that we cannot support other users since
we cannot reproduce their exact problems.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>My
question is whether it would be OK to just fix the random seed inside the
source code. In this way the algorith should still work as intended, but the
results will be reproducible. Has anybody done this before? Is this OK to do?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Thanks
in advance,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.5pt;font-family:Consolas'>Serban </span><o:p></o:p></p>
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