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<font size="-1">Hello John,<br>
<br>
<font size="-1"><font size="-1">Attached is a constraint file which seems to be very touchy for cbc.<br>
<font size="-1">The solver spends several hours to find the optimal solution.<br>
<font size="-1">I wo<font size="-1">uld like to know why (maybe something wrong or not well balanced) and if there is any way to speed cbc to find a
<font size="-1">deterministic solution.<br>
<br>
<font size="-1"><font size="-1">Cbc revision is <i>#2.8.8</i>.<br>
<font size="-1">Command is: <i>cbc test.lp threads 104 cutlength 40 branch printingOptions rows solution test.sol</i></font><br>
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<font size="-1">Thank<font size="-1">s in advance<br>
<br>
<font size="-1">Yves</font></font></font></font></font></font> </font></font></font><br>
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