The MOSEK Python optimizer API manual Version 7.0 (Revision 141)
Optimizer API for Python - Documentation - Mosek Optimizer API for Python - Documentation - Mosek
456 APPENDIX B. PARAMETERS GUB cover +2 Flow cover +4 Lifting +8 Plant location +16 Disaggregation +32 Knapsack cover +64 Lattice +128 Gomory +256 Coefficient reduction +512 GCD +1024 Obj. integrality +2048 Possible Values: Any value. Default value: -1 B.2.78 iparam.mio cut level tree Corresponding constant: iparam.mio cut level tree Description: Controls the cut level employed by the mixed-integer optimizer at the tree. See iparam.mio cut level root for an explanation of the parameter values. Possible Values: Any value. Default value: -1 B.2.79 iparam.mio feaspump level Corresponding constant: iparam.mio feaspump level Description: Feasibility pump is a heuristic designed to compute an initial feasible solution. A value of 0 implies that the feasibility pump heuristic is not used. A value of -1 implies that the mixedinteger optimizer decides how the feasibility pump heuristic is used. A larger value than 1 implies that the feasibility pump is employed more aggressively. Normally a value beyond 3 is not worthwhile.
B.2. IPARAM: INTEGER PARAMETERS 457 Possible Values: Any number between -inf and 3. Default value: -1 B.2.80 iparam.mio heuristic level Corresponding constant: iparam.mio heuristic level Description: Controls the heuristic employed by the mixed-integer optimizer to locate an initial good integer feasible solution. A value of zero means the heuristic is not used at all. A larger value than 0 means that a gradually more sophisticated heuristic is used which is computationally more expensive. A negative value implies that the optimizer chooses the heuristic. Normally a value around 3 to 5 should be optimal. Possible Values: Any value. Default value: -1 B.2.81 iparam.mio hotstart Corresponding constant: iparam.mio hotstart Description: Controls whether the integer optimizer is hot-started. Possible values: • onoffkey.off Switch the option off. • onoffkey.on Switch the option on. Default value: onoffkey.on
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456 APPENDIX B. PARAMETERS<br />
GUB cover +2<br />
Flow cover +4<br />
Lifting +8<br />
Plant location +16<br />
Disaggregation +32<br />
Knapsack cover +64<br />
Lattice +128<br />
Gomory +256<br />
Coefficient reduction +512<br />
GCD +1024<br />
Obj. integrality +2048<br />
Possible Values:<br />
Any value.<br />
Default value:<br />
-1<br />
B.2.78<br />
iparam.mio cut level tree<br />
Corresponding constant:<br />
iparam.mio cut level tree<br />
Description:<br />
Controls the cut level employed by the mixed-integer <strong>optimizer</strong> at the tree. See iparam.mio cut level root<br />
for an explanation of the parameter values.<br />
Possible Values:<br />
Any value.<br />
Default value:<br />
-1<br />
B.2.79<br />
iparam.mio feaspump level<br />
Corresponding constant:<br />
iparam.mio feaspump level<br />
Description:<br />
Feasibility pump is a heuristic designed to compute an initial feasible solution. A value of 0<br />
implies that the feasibility pump heuristic is not used. A value of -1 implies that the mixedinteger<br />
<strong>optimizer</strong> decides how the feasibility pump heuristic is used. A larger value than 1<br />
implies that the feasibility pump is employed more aggressively. Normally a value beyond 3 is<br />
not worthwhile.