<div dir="ltr"><div>The answer is a qualified "yes". We have been successfully using Cbc to simultaneously solve multiple different problems in different threads by creating a CbcModel object and calling the branchAndBound() method. Using the wrappers in CbcSolver.cpp does not seem to be thread-safe. Calling Cbc this way only works for solving one MILP at a time (though it is possible to use multiple threads to solve that single MILP). I don't recall the precise reason for this.<br>
</div><br>Cheers,<br><br>Ted<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, May 14, 2014 at 12:18 PM, Alon Shapira <span dir="ltr"><<a href="mailto:ashapira@tower-research.com" target="_blank">ashapira@tower-research.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div style="direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt">Hi,<br>
Is the cbc library (and the clp) thread safe ?<br>
What I mean is : Can two different threads solve (two different problems) simultaneously ?
<br>
Thanks,<br>
Alon<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Dr. Ted Ralphs<br>Associate Professor, Lehigh University<br>(610) 628-1280<br>ted 'at' lehigh 'dot' edu<br><a href="http://coral.ie.lehigh.edu/~ted" target="_blank">coral.ie.lehigh.edu/~ted</a><br>
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