ILOG CPLEX 11.0 Interactive Optimizer > > Interactive Optimizer Commands

Interactive Optimizer Commands

This manual lists the commands of the Interactive Optimizer of ILOG CPLEX. For an introduction to the Interactive Optimizer, see the manual Getting Started, especially the tutorial for the Interactive Optimizer.

This manual begins with a table that lists Interactive Optimizer commands in alphabetic order with their primary options. For some commands, it also tells where examples of their use can be found in the ILOG CPLEX User's Manual or Getting Started.

These topics follow the table:

Interactive Optimizer Command		Options	Example
`add`			Adding Constraints and Bounds in Getting Started
`baropt`			Using Alternative Optimizers in Getting Started
`baropt`	`dualopt`
`baropt`	`primopt`
`baropt`	`stop`
`change`	`bounds`		Changing Bounds in Getting Started
`change`	`coefficient`		Changing Coefficients in Getting Started
`change`	`delete`		Deleting Entire Constraints or Variables in Getting Started
`change`	`delete`	`constraints`
`change`	`delete`	`qconstraints`
`change`	`delete`	`indconstraints`
`change`	`delete`	`sos`
`change`	`delete`	`variables`
`change`	`delete`	`equality`
`change`	`delete`	`greater-than`
`change`	`delete`	`less-than`
`change`	`name`		Changing Constraint or Variable Names in Getting Started
`change`	`objective`		Objective & RHS Coefficients in Getting Started
`change`	`problem`	type	Using the MIP Solution Changing Problem Type in QPs Diagnosing QP Infeasibility in User's Manual
`change`	`problem`	`fixed` i	Accessing a Solution in the Solution Pool in User's Manual
`change`	`qpterm`		Changing Quadratic Terms in User's Manual
`change`	`rhs`		Objective & RHS Coefficients in Getting Started
`change`	`sense`		Changing Sense in Getting Started
`change`	`type`		Changing Variable Type in User's Manual
`change`	`values`		Changing Small Values to Zero in Getting Started
`conflict`			Meet the Conflict Refiner in the Interactive Optimizer in User's Manual
`display`	`conflict`	`all`	Displaying a Conflict in the Interactive Optimizer in User's Manual
`display`	`conflict`	constraints	Displaying a Conflict in the Interactive Optimizer in User's Manual
`display`	`conflict`	indicators
`display`	`conflict`	qconstraints
`display`	`conflict`	sos
`display`	`conflict`	variables	Displaying a Conflict in the Interactive Optimizer in User's Manual
`display`	`problem`	`all`	Displaying a Problem in Getting Started
`display`	`problem`	`binaries`	Interactive Optimizer Display Options for MIP Problems in User's Manual
`display`	`problem`	`bounds`	Displaying Bounds in Getting Started
`display`	`problem`	`constraints`	Displaying Constraints in Getting Started
`display`	`problem`	`generals`	Interactive Optimizer Display Options for MIP Problems in User's Manual
`display`	`problem`	`histogram`	Detecting and Eliminating Dense Columns in User's Manual or Displaying a Histogram of NonZero Counts in Getting Started
`display`	`problem`	`indicators`
`display`	`problem`	`integers`	Interactive Optimizer Display Options for MIP Problems in User's Manual
`display`	`problem`	`names`	Displaying Variable or Constraint Names in Getting Started
`display`	`problem`	`qconstraints`
`display`	`problem`	`qpvariables`
`display`	`problem`	`semi-continuous`
`display`	`problem`	`sos`
`display`	`problem`	`stats`	Solve the Problem You Intended or Interactive Optimizer Display Options for MIP Problems in User's Manual
`display`	`problem`	`variable`
`display`	`sensitivity`	`lb`	Performing Sensitivity Analysis in Getting Started
`display`	`sensitivity`	`objective`	Performing Sensitivity Analysis in Getting Started
`display`	`sensitivity`	`rhs`	Performing Sensitivity Analysis in Getting Started
`display`	`sensitivity`	`ub`	Performing Sensitivity Analysis in Getting Started
`display`	`settings`		Displaying Parameter Settings in Getting Started
`display`	`settings`	`all`	Displaying Parameter Settings in Getting Started
`display`	`settings`	`changed`	Displaying Parameter Settings in Getting Started
`display`	`solution`	`basis`
`display`	`solution`	`bestbound`
`display`	`solution`	`difference i j`	Examining the Solution Pool in User's Manual
`display`	`solution`	`dual`
`display`	`solution`	`kappa`	Measuring Problem Sensitivity with Basis Condition Number in User's Manual
`display`	`solution`	`list i n`	Examining the Solution Pool in User's Manual
`display`	`solution`	`member`	Examining the Solution Pool in User's Manual
`display`	`solution`	`objective`
`display`	`solution`	`pool`	Examining the Solution Pool in User's Manual
`display`	`solution`	`qcslacks`
`display`	`solution`	`quality`	Coping with an Ill-Conditioned Problem or Handling Unscaled Infeasibilities or Understanding Solution Quality from the Barrier LP Optimizer in User's Manual
`display`	`solution`	`reduced`
`display`	`solution`	`slacks`	Displaying Post-Solution Information in Getting Started
`display`	`solution`	`variables`	Displaying Post-Solution Information in Getting Started
`display`	`solution number`	`i objective`	Examining the Solution Pool in User's Manual
`display`	`solution number`	`i qcslacks`
`display`	`solution number`	`i quality`
`display`	`solution number`	`i slacks`
`display`	`solution number`	`i variables`
`enter`			Entering a Problem in Getting Started
`feasopt`	`constraints`		Invoking FeasOpt in User's Manual
`feasopt`	`variables`		Invoking FeasOpt in User's Manual
`feasopt`	`all`		Invoking FeasOpt in User's Manual
`help`			Using Help in Getting Started
`mipopt`			Using the Mixed Integer Optimizer in User's Manual
`netopt`			Example: Network Optimizer in the Interactive Optimizer or CPX_ALG_HYBNETOPT in User's Manual
`optimize`			Solving a Problem in Getting Started
`populate`			Populating the Solution Pool in User's Manual
`primopt`			Using Alternative Optimizers in Getting Started
`quit`			Quitting ILOG CPLEX in Getting Started
`read`	filename	type	Starting from an Advanced Basis or Understanding the Network Log File or Filter Files in User's Manual
`set`	`advance`		Starting from an Advanced Basis in User's Manual
`set`	`barrier`		Using the Barrier Optimizer in User's Manual
`set`	`barrier`	`algorithm`	Using the Barrier Optimizer or Choosing an Ordering Algorithm in User's Manual
`set`	`barrier`	`colnonzeros`	Detecting and Eliminating Dense Columns in User's Manual
`set`	`barrier`	`convergetol`
`set`	`barrier`	`crossover`
`set`	`barrier`	`display` level	Using the Barrier Optimizer or Numeric Instability Due to Elimination of Too Many Dense Columns in User's Manual
`set`	`barrier limits`	`corrections`	Change the Limit on Barrier Corrections in User's Manual
`set`	`barrier limits`	`growth`
`set`	`barrier limits`	`iterations`
`set`	`barrier limits`	`objrange`	Difficulties with Unbounded Problems in User's Manual
`set`	`barrier limits`	`threads`
`set`	`barrier`	`ordering`
`set`	`barrier`	`qcpconvergetol`
`set`	`barrier`	`startalg`
`set`	`clocktype`
set	`conflict`	`display` level
`set`	`defaults`		Resetting Defaults in Getting Started
`set`	`emphasis`	`memory`	Lack of Memory or Memory Emphasis: Letting the Optimizer Use Disk for Storage in User's Manual
`set`	`emphasis`	`mip`	Emphasizing Feasibility and Optimality in User's Manual
`set`	`emphasis`	`numerical`	Numerical Emphasis Settings (LP) or Numerical Emphasis Settings (barrier) in User's Manual
`set`	`feasopt`	`tolerance`
`set`	`logfile`	filename	Filing Iteration Logs in Getting Started
`set`	`lpmethod`
set	`mip cuts`	`all`
`set`	`mip cuts`	class	Parameters for Controlling Cuts in User's Manual
`set`	`mip cuts`	`cliques`
`set`	`mip cuts`	`covers`
`set`	`mip cuts`	`disjunctive`
`set`	`mip cuts`	`flowcovers`
`set`	`mip cuts`	`gomory`
`set`	`mip cuts`	`gubcovers`
`set`	`mip cuts`	`implied`
`set`	`mip cuts`	`mircut`
`set`	`mip cuts`	`pathcut`
`set`	`mip`	`display`
`set`	`mip`	`interval`
`set`	`mip limits`	`aggforcut`
`set`	`mip limits`	`cutpasses`
`set`	`mip limits`	`cutsfactor`	Parameters Affecting Cuts in User's Manual
`set`	`mip limits`	`gomorycand`
`set`	`mip limits`	`gomorypass`
`set`	`mip limits`	`nodes`	Parameters to Limit MIP Optimization in User's Manual
`set`	`mip limits`	`polishtime`
`set`	`mip limits`	`populate`	Parameters of the Solution Pool in User's Manual
`set`	`mip limits`	`probetime`
`set`	`mip limits`	`repairtries`
`set`	`mip limits`	`solutions`	Parameters to Limit MIP Optimization in User's Manual
`set`	`mip limits`	`strongcand`
`set`	`mip limits`	`strongit`
`set`	`mip limits`	`strongthreads`
`set`	`mip limits`	`submipnodelim`
`set`	`mip limits`	`threads`
`set`	`mip limits`	`treememory`	Reset the Tree Memory Parameter in User's Manual
`set`	`mip`	`ordtype`
`set`	`mip pool`	`absgap`	Parameters of the Solution Pool in User's Manual
`set`	`mip pool`	`capacity`	Parameters of the Solution Pool in User's Manual
`set`	`mip pool`	`intensity`	Parameters of the Solution Pool in User's Manual
`set`	`mip pool`	`relgap`	Parameters of the Solution Pool in User's Manual
`set`	`mip pool`	`replace`	Parameters of the Solution Pool in User's Manual
`set`	`mip strategy`	`backtrack`	Parameters for Controlling Branch & Cut Strategy in User's Manual
`set`	`mip strategy`	`bbinterval`	Parameters for Controlling Branch & Cut Strategy in User's Manual
`set`	`mip strategy`	`branch`	Parameters for Controlling Branch & Cut Strategy in User's Manual
`set`	`mip strategy`	`dive`
`set`	`mip strategy`	`file`
`set`	`mip strategy`	`heuristicfreq`	Heuristics in User's Manual
`set`	`mip strategy`	`lbheuristic`
`set`	`mip strategy`	`nodeselect`	Parameters for Controlling Branch & Cut Strategy in User's Manual
`set`	`mip strategy`	`order`
`set`	`mip strategy`	`presolvenode`
`set`	`mip strategy`	`probe`	Probing in User's Manual
`set`	`mip strategy`	`rinsheur`	relaxation induced neighborhood search (RINS)
`set`	`mip strategy`	`startalgorithm`
`set`	`mip strategy`	`subalgorithm`	NodeAlg Parameter in User's Manual
`set`	`mip strategy`	`variableselect`	Parameters for Controlling Branch & Cut Strategy in User's Manual
`set`	`mip tolerances`	`absmipgap`
`set`	`mip tolerances`	`integrality`
`set`	`mip tolerances`	`lowercutoff`
`set`	`mip tolerances`	`mipgap`
`set`	`mip tolerances`	`objdifference`	Time Wasted on Overly Tight Optimality Criteria in User's Manual
`set`	`mip tolerances`	`relobjdifference`
`set`	`mip tolerances`	`uppercutoff`
`set`	`network`	`display`	Understanding the Network Log File in User's Manual
`set`	`network`	`iterations`	Limiting Iterations in the Network Optimizer in User's Manual
`set`	`network`	`netfind`
`set`	`network`	`pricing`	Selecting a Pricing Algorithm for the Network Optimizer in User's Manual
`set`	`network tolerances`	`feasibility`	Controlling Tolerance in User's Manual
`set`	`network tolerances`	`optimality`
`set`	`output`	channel
`set`	`output`	`mpslong`
`set`	`output`	`logonly`	Interpreting Solution Quality in User's Manual
`set`	`parallel`	mode	Using Parallel Optimizers in the Interactive Optimizer in User's Manual
`set`	`preprocessing`	`aggregator`	Preprocessing Preprocessing and Memory Requirements Parameters for Controlling MIP Preprocessing in User's Manual
`set`	`preprocessing`	`boundstrength`	Parameters for Controlling MIP Preprocessing in User's Manual
`set`	`preprocessing`	`coeffreduce`	Parameters for Controlling MIP Preprocessing Examples: Optimizing a Simple MIP Problem in User's Manual
`set`	`preprocessing`	`dependency`	Preprocessing (continuous) Preprocessing (discrete) in User's Manual
`set`	`preprocessing`	`dual`	Using a Starting-Point Heuristic in User's Manual
`set`	`preprocessing`	`fill`	Preprocessing in User's Manual
`set`	`preprocessing`	`linear`
`set`	`preprocessing`	`numpass`
`set`	`preprocessing`	`presolve`	Preprocessing and Memory Requirements (continuous) in User's Manual Parameters for Controlling MIP Preprocessing in User's Manual
`set`	`preprocessing`	`qpmakepsd`
`set`	`preprocessing`	`reduce`	Preprocessing (continuous) or Preprocessing and Feasibility (discrete) in User's Manualp
`set`	`preprocessing`	`relax`	Parameters for Controlling MIP Preprocessing in User's Manual
`set`	`preprocessing`	`repeatpresolve`	Preprocessing: Presolver and Aggregator (discrete) in User's Manual
`set`	`preprocessing`	`symmetry`
`set`	`qpmethod`
`set`	`read`	`constraints`
`set`	`read`	`datacheck`	Displaying Problem Statistics in Getting Started
`set`	`read`	`nonzeroes`
`set`	`read`	`qpnonzeroes`
`set`	`read`	`scale`	Scaling in User's Manual
`set`	`read`	`variables`
`set`	`sifting`	`algorithm`
`set`	`sifting`	`display`
`set`	`sifting`	`iterations`
`set`	`simplex`	`crash`	CraInd Parameter Settings for the Primal Simplex Optimizer in User's Manual
`set`	`simplex`	`dgradient`
`set`	`simplex`	`display`
`set`	`simplex limits`	`iterations`
`set`	`simplex limits`	`lowerobj`
`set`	`simplex limits`	`perturbation`	Stalling Due to Degeneracy in User's Manual
`set`	`simplex limits`	`singularity`	Repeated Singularities in User's Manual
`set`	`simplex limits`	`upperobj`
`set`	`simplex`	`perturbation`	Stalling Due to Degeneracy in User's Manual
`set`	`simplex`	`pgradient`
`set`	`simplex`	`pricing`
`set`	`simplex`	`refactor`	Refactoring Frequency and Memory Requirements in User's Manual
`set`	`simplex tolerances`	`feasibility`	Maximum Bound Infeasibility: Identifying Largest Bound Violation in User's Manual
`set`	`simplex tolerances`	`markowitz`	Inability to Stay Feasible in User's Manual
`set`	`simplex tolerances`	`optimality`	Maximum Reduced-Cost Infeasibility in User's Manual
`set`	`threads`
`set`	`timelimit`		Parameters to Limit MIP Optimization in User's Manual
`set`	`workdir`	prompt for directory	Memory Emphasis: Letting the Optimizer Use Disk for Storage in User's Manual
`set`	`workmem`	prompt for new value of working memory available	Memory Emphasis: Letting the Optimizer Use Disk for Storage or Parameters to Limit MIP Optimization in User's Manual
`tranopt`
`tune`	`display`	i	Tuning Tool in User's Manual
`tune`	filenames	parameterfile.`prm`	Example: Time Limits on Tuning in the Interactive Optimizer and Fixing Parameters and Tuning Multiple Models in the Interactive Optimizer in User's Manual
`write`	filenames	type	Preprocessing (continuous) or Repeated Singularities or Difficulty Solving Subproblems: Overcoming Degeneracy or Saving QP Problems in User's Manual
`xecute`	`command`		Executing Operating System Commands in Getting Started