http://tomwiki.com/index.php?action=history&feed=atom&title=CPLEX_cpxcb_MIPPROBE 2026-10-31T20:29:39Z Revision history for this page on the wiki MediaWiki 1.39.1 http://tomwiki.com/index.php?title=CPLEX_cpxcb_MIPPROBE&diff=990&oldid=prev 2011-08-16T15:06:51Z

<p>Created page with &quot;{{Part Of Manual|title=the CPLEX Manual|link=<a href="/index.php?title=CPLEX" title="CPLEX">CPLEX</a>}} CPLEX MIP Probe and Clique Merging callback. Called from TOMLAB /CPLEX during MIP Probing and Clique Merging. Th...&quot;</p> <p><b>New page</b></p><div>{{Part Of Manual|title=the CPLEX Manual|link=[[CPLEX|CPLEX]]}}<br /> CPLEX MIP Probe and Clique Merging callback.<br /> <br /> Called from TOMLAB /CPLEX during MIP Probing and Clique Merging.<br /> <br /> This callback is enabled by setting &#039;&#039;callback&#039;&#039;(8) = 1 in the call to &#039;&#039;cplex.m&#039;&#039;, or &#039;&#039;P rob.M I P.callback&#039;&#039;(8) = 1 if using tomRun(&#039;cplex&#039;,...).<br /> <br /> cpxcb MIPPROBE is called with one argument, the cpxCBInfo progress information vector. <br /> <br /> Contents of cpxCBInfo variable:<br /> <br /> &lt;pre&gt;<br /> i cpxCBInfo(i) - Value<br /> -------------------------------------------------------------<br /> 1 BEST_INTEGER - obj. value of best integer solution<br /> 2 BEST_REMAINING - obj. value of best remaining node<br /> 3 NODE_COUNT - total number of nodes solved<br /> 4 NODES_LEFT - number of remaining nodes<br /> 5 MIP_ITERATIONS - total number of MIP iterations<br /> 6 MIP_FEAS - returns 1 if feasible solution exists; otherwise, 0<br /> 7 CUTOFF - updated cutoff value<br /> 8 CLIQUE_COUNT - number of clique cuts added<br /> 9 COVER_COUNT - number of cover cuts added<br /> 10 DISJCUT_COUNT - number of disjunctive cuts added<br /> 11 FLOWCOVER_COUNT - number of flow cover cuts added<br /> 12 FLOWPATH_COUNT - number of flow path cuts added<br /> 13 FRACCUT_COUNT - number of Gomory fractional cuts added<br /> 14 GUBCOVER_COUNT - number of GUB cover cuts added<br /> 15 IMPLBD_COUNT - number of implied bound cuts added<br /> 16 MIRCUT_COUNT - number of mixed integer rounding cuts added<br /> 17 PROBE_PHASE - current phase of probing (0-3)<br /> 18 PROBE_PROGRESS - fraction of probing phase completed (0.0-1.0)<br /> 19 FRACCUT_PROGRESS - fraction of Gomory cut generation for the pass completed (0.0 - 1.0)<br /> 20 DISJCUT_PROGRESS - fraction of disjunctive cut generation for the pass completed (0.0 - 1.0)<br /> 21 FLOWMIR_PROGRESS - fraction of flow cover and MIR cut generation for the pass completed (0.0 - 1.0)<br /> 22 MY_THREAD_NUM - identifier of the parallel thread making this call (always 0)<br /> 23 USER_THREADS - total number of parallel threads currently running (always 1)<br /> &lt;/pre&gt;<br /> <br /> By returning a nonzero value from cpxcb MIPPROBE, the user can terminate the optimization.<br /> <br /> If modifying this file, it is recommended to make a copy of it which is placed before the original file in the MATLAB path.</div>

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