Mosek - Computer Sciences Department

MOSEK 268 The optimizer for nonconvex nonlinear problems.9 The concurrent optimizer is used.MSK IPAR MIO STRONG BRANCH (integer)The value specifies the depth from the root in which strong branching is used. A negative value means theoptimizer chooses a default value automatically.(default = -1)MSK DPAR MIO TOL ABS GAP (real)Absolute optimality tolerance employed by the mixed integer optimizer.(default = 0.0)MSK DPAR MIO TOL ABS RELAX INT (real)Absolute relaxation tolerance of the integer constraints, i.e. if the fractional part of a discrete variable isless than the tolerance, the integer restrictions assumed to be satisfied.(default = 1.0e-5)MSK DPAR MIO TOL REL GAP (real)Relative optimality tolerance employed by the mixed integer optimizer.(default = 1.0e-8)MSK DPAR MIO TOL REL RELAX INT (real)Relative relaxation tolerance of the integer constraints, i.e. if the fractional part of a discrete variable is lessthan the tolerance times the level of that variable, the integer restrictions assumed to be satisfied.(default = 1.0e-6)MSK IPAR MIO PRESOLVE PROBING (integer)Controls whether the mixed integer presolve performs probing. Probing can be very time consuming.(default = 1)MSK IPAR MIO CUT LEVEL TREE (integer)Controls the cut level employed by the mixed integer optimizer at the tree. See MSK IPAR MIO CUT LEVEL ROOT.(default = -1)6 The MOSEK Log FileThe MOSEK log output gives much useful information about the current solver progress and individual phases.6.1 Log Using the Interior Point OptimizerThe following is a MOSEK log output from running the transportation model trnsport.gms from the GAMSModel Library:Interior-point optimizer started.Presolve started.Linear dependency checker started.Linear dependency checker terminated.Presolve - time : 0.00Presolve - Stk. size (kb) : 0Eliminator - tries : 0 time : 0.00Eliminator - elim’s : 0