[SCIP] scip + clp ?

Stuart Rogers srogers at umn.edu
Thu Nov 30 01:25:34 CET 2017


This documentation (http://scip.zib.de/doc/html/LPI.php) states that the
SCIP interface to the LP solver CLP sometimes produces wrong results. How
serious is this issue and why hasn't it been addressed? CLP is free, yet
performs just as well as the expensive LP solver CPLEX and better than the
LP solver SoPlex according to these benchmarks (http://plato.asu.edu/ftp/
lpsimp.html). In all my tests so far on my particular model, setting the LP
solver to CLP makes SCIP terminate very rapidly to a very non-optimal
solution. Thanks, Stuart
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