Documentation

Gurobi Optimizer Reference Manual

The different Gurobi language interfaces share many common features. These are described at the end of this manual. Two particularly important common features are the Attribute interface and the Gurobi Parameter set. You may wish to bookmark these pages, since you are likely to refer to them frequently as you develop applications that use the Gurobi Optimizer.

Additional Topics

This document covers a number of additional topics, which are listed here:

• Variables and Constraints
• Attributes
• Parameters
• Optimization Status Codes
• Callback Codes
• Error Codes
• File Formats
• Logging
• Command-Line Tool
• Solution Pool
• Multiple Objectives
• Recording API Calls
• Concurrent Optimizer
• Parameter Tuning Tool
• Remote Services
• Distributed Parallel Algorithms
• Compute Server
• Instant Cloud

Additional Resources

You can consult the Gurobi Quick Start for a high-level overview of the Gurobi Optimizer, or the Gurobi Example Tour for a quick tour of the examples provided with the Gurobi distribution.

Getting Help

If you have a question that is not answered in this document, you can post it to the Gurobi Google Group. If you have a current maintenance contract with us, you can send your question to support@gurobi.com.

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• C API Overview
• C API Details
  • Environment Creation and Destruction
    • GRBloadenv
    • GRBloadclientenv
    • GRBloadcloudenv
    • GRBfreeenv
    • GRBgetconcurrentenv
    • GRBgetmultiobjenv
    • GRBdiscardconcurrentenvs
    • GRBdiscardmultiobjenvs
  • Model Creation and Modification
    • GRBloadmodel
    • GRBnewmodel
    • GRBcopymodel
    • GRBaddconstr
    • GRBaddconstrs
    • GRBaddgenconstrXxx
    • GRBaddgenconstrMax
    • GRBaddgenconstrMin
    • GRBaddgenconstrAbs
    • GRBaddgenconstrAnd
    • GRBaddgenconstrOr
    • GRBaddgenconstrIndicator
    • GRBaddqconstr
    • GRBaddqpterms
    • GRBaddrangeconstr
    • GRBaddrangeconstrs
    • GRBaddsos
    • GRBaddvar
    • GRBaddvars
    • GRBchgcoeffs
    • GRBdelconstrs
    • GRBdelgenconstrs
    • GRBdelq
    • GRBdelqconstrs
    • GRBdelsos
    • GRBdelvars
    • GRBsetobjectiven
    • GRBsetpwlobj
    • GRBupdatemodel
    • GRBfreemodel
    • GRBXaddconstrs
    • GRBXaddrangeconstrs
    • GRBXaddvars
    • GRBXchgcoeffs
    • GRBXloadmodel
  • Model Solution
    • GRBoptimize
    • GRBoptimizeasync
    • GRBcomputeIIS
    • GRBfeasrelax
    • GRBfixedmodel
    • GRBresetmodel
    • GRBsync
  • Model Queries
    • GRBgetcoeff
    • GRBgetconstrbyname
    • GRBgetconstrs
    • GRBgetenv
    • GRBgetgenconstrMax
    • GRBgetgenconstrMin
    • GRBgetgenconstrAbs
    • GRBgetgenconstrAnd
    • GRBgetgenconstrOr
    • GRBgetgenconstrIndicator
    • GRBgetpwlobj
    • GRBgetq
    • GRBgetqconstr
    • GRBgetsos
    • GRBgetvarbyname
    • GRBgetvars
    • GRBXgetconstrs
    • GRBXgetvars
  • Input/Output
    • GRBreadmodel
    • GRBread
    • GRBwrite
  • Attribute Management
    • GRBgetattrinfo
    • GRBgetintattr
    • GRBsetintattr
    • GRBgetintattrelement
    • GRBsetintattrelement
    • GRBgetintattrarray
    • GRBsetintattrarray
    • GRBgetintattrlist
    • GRBsetintattrlist
    • GRBgetdblattr
    • GRBsetdblattr
    • GRBgetdblattrelement
    • GRBsetdblattrelement
    • GRBgetdblattrarray
    • GRBsetdblattrarray
    • GRBgetdblattrlist
    • GRBsetdblattrlist
    • GRBgetcharattrelement
    • GRBsetcharattrelement
    • GRBgetcharattrarray
    • GRBsetcharattrarray
    • GRBgetcharattrlist
    • GRBsetcharattrlist
    • GRBgetstrattr
    • GRBsetstrattr
    • GRBgetstrattrelement
    • GRBsetstrattrelement
    • GRBgetstrattrarray
    • GRBsetstrattrarray
    • GRBgetstrattrlist
    • GRBsetstrattrlist
  • Parameter Management and Tuning
    • GRBtunemodel
    • GRBgettuneresult
    • GRBgetdblparam
    • GRBgetintparam
    • GRBgetstrparam
    • GRBsetdblparam
    • GRBsetintparam
    • GRBsetstrparam
    • GRBgetdblparaminfo
    • GRBgetintparaminfo
    • GRBgetstrparaminfo
    • GRBreadparams
    • GRBwriteparams
  • Monitoring Progress - Logging and Callbacks
    • GRBmsg
    • GRBsetcallbackfunc
    • GRBgetcallbackfunc
    • GRBcbget
    • GRBversion
  • Modifying Solver Behavior - Callbacks
    • GRBcbcut
    • GRBcblazy
    • GRBcbsolution
    • GRBterminate
  • Error Handling
    • GRBgeterrormsg
  • Advanced simplex routines
    • GRBFSolve
    • GRBBSolve
    • GRBBinvColj
    • GRBBinvRowi
    • GRBgetBasisHead
  
  
• C++ API Overview
• C++ API Details
  • GRBEnv
    • GRBEnv()
    • GRBEnv::get()
    • GRBEnv::getErrorMsg()
    • GRBEnv::getParamInfo()
    • GRBEnv::message()
    • GRBEnv::readParams()
    • GRBEnv::resetParams()
    • GRBEnv::set()
    • GRBEnv::writeParams()
  • GRBModel
    • GRBModel()
    • GRBModel::addConstr()
    • GRBModel::addConstrs()
    • GRBModel::addGenConstrXxx()
      • GRBModel::addGenConstrMax()
      • GRBModel::addGenConstrMin()
      • GRBModel::addGenConstrAbs()
      • GRBModel::addGenConstrAnd()
      • GRBModel::addGenConstrOr()
      • GRBModel::addGenConstrIndicator()
    • GRBModel::addQConstr()
    • GRBModel::addRange()
    • GRBModel::addRanges()
    • GRBModel::addSOS()
    • GRBModel::addVar()
    • GRBModel::addVars()
    • GRBModel::chgCoeff()
    • GRBModel::chgCoeffs()
    • GRBModel::computeIIS()
    • GRBModel::discardConcurrentEnvs()
    • GRBModel::discardMultiobjEnvs()
    • GRBModel::feasRelax()
    • GRBModel::fixedModel()
    • GRBModel::get()
    • GRBModel::getCoeff()
    • GRBModel::getCol()
    • GRBModel::getConcurrentEnv()
    • GRBModel::getConstrByName()
    • GRBModel::getConstrs()
    • GRBModel::getEnv()
    • GRBModel::getGenConstrMax()
    • GRBModel::getGenConstrMin()
    • GRBModel::getGenConstrAbs()
    • GRBModel::getGenConstrAnd()
    • GRBModel::getGenConstrOr()
    • GRBModel::getGenConstrIndicator()
    • GRBModel::getGenConstrs()
    • GRBModel::getMultiobjEnv()
    • GRBModel::getObjective()
    • GRBModel::getPWLObj()
    • GRBModel::getQCRow()
    • GRBModel::getQConstrs()
    • GRBModel::getRow()
    • GRBModel::getSOS()
    • GRBModel::getSOSs()
    • GRBModel::getTuneResult()
    • GRBModel::getVarByName()
    • GRBModel::getVars()
    • GRBModel::optimize()
    • GRBModel::optimizeasync()
    • GRBModel::presolve()
    • GRBModel::read()
    • GRBModel::remove()
    • GRBModel::reset()
    • GRBModel::setCallback()
    • GRBModel::set()
    • GRBModel::setObjective()
    • GRBModel.setObjectiveN()
    • GRBModel::setPWLObj()
    • GRBModel::sync()
    • GRBModel::terminate()
    • GRBModel::tune()
    • GRBModel::update()
    • GRBModel::write()
  • GRBVar
    • GRBVar::get()
    • GRBVar::sameAs()
    • GRBVar::set()
  • GRBConstr
    • GRBConstr::get()
    • GRBConstr::sameAs()
    • GRBConstr::set()
  • GRBQConstr
    • GRBQConstr::get()
    • GRBQConstr::set()
  • GRBSOS
    • GRBSOS::get()
  • GRBGenConstr
    • GRBGenConstr::get()
    • GRBGenConstr::set()
  • GRBExpr
    • GRBExpr::getValue()
  • GRBLinExpr
    • GRBLinExpr()
    • GRBLinExpr::addTerms()
    • GRBLinExpr::clear()
    • GRBLinExpr::getConstant()
    • GRBLinExpr::getCoeff()
    • GRBLinExpr::getValue()
    • GRBLinExpr::getVar()
    • GRBLinExpr::operator=
    • GRBLinExpr::operator+
    • GRBLinExpr::operator-
    • GRBLinExpr::operator+=
    • GRBLinExpr::operator-=
    • GRBLinExpr::operator*=
    • GRBLinExpr::remove()
    • GRBLinExpr::size()
  • GRBQuadExpr
    • GRBQuadExpr()
    • GRBQuadExpr::addTerm()
    • GRBQuadExpr::addTerms()
    • GRBQuadExpr::clear()
    • GRBQuadExpr::getCoeff()
    • GRBQuadExpr::getLinExpr()
    • GRBQuadExpr::getValue()
    • GRBQuadExpr::getVar1()
    • GRBQuadExpr::getVar2()
    • GRBQuadExpr::operator=
    • GRBQuadExpr::operator+
    • GRBQuadExpr::operator-
    • GRBQuadExpr::operator+=
    • GRBQuadExpr::operator-=
    • GRBQuadExpr::operator*=
    • GRBQuadExpr::remove()
    • GRBQuadExpr::size()
  • GRBTempConstr
  • GRBColumn
    • GRBColumn()
    • GRBColumn::addTerm()
    • GRBColumn::addTerms()
    • GRBColumn::clear()
    • GRBColumn::getCoeff()
    • GRBColumn::getConstr()
    • GRBColumn::remove()
    • GRBColumn::size()
  • GRBCallback
    • GRBCallback()
    • GRBCallback::abort()
    • GRBCallback::addCut()
    • GRBCallback::addLazy()
    • GRBCallback::getDoubleInfo()
    • GRBCallback::getIntInfo()
    • GRBCallback::getNodeRel()
    • GRBCallback::getSolution()
    • GRBCallback::getStringInfo()
    • GRBCallback::setSolution()
    • GRBCallback::useSolution()
  • GRBException
    • GRBException()
    • GRBException::getErrorCode()
    • GRBException::getMessage()
  • Non-Member Functions
    • operator==
    • operator<=
    • operator>=
    • operator+
    • operator-
    • operator*
    • operator/
  • Attribute Enums
    • GRB_CharAttr
    • GRB_DoubleAttr
    • GRB_IntAttr
    • GRB_StringAttr
  • Parameter Enums
    • GRB_DoubleParam
    • GRB_IntParam
    • GRB_StringParam
  
  
• Java API Overview
• Java API Details
  • GRBEnv
    • GRBEnv()
    • GRBEnv.dispose()
    • GRBEnv.get()
    • GRBEnv.getErrorMsg()
    • GRBEnv.getParamInfo()
    • GRBEnv.message()
    • GRBEnv.readParams()
    • GRBEnv.release()
    • GRBEnv.resetParams()
    • GRBEnv.set()
    • GRBEnv.writeParams()
  • GRBModel
    • GRBModel()
    • GRBModel.addConstr()
    • GRBModel.addConstrs()
    • GRBModel.addGenConstrXxx()
      • GRBModel.addGenConstrMax()
      • GRBModel.addGenConstrMin()
      • GRBModel.addGenConstrAbs()
      • GRBModel.addGenConstrAnd()
      • GRBModel.addGenConstrOr()
      • GRBModel.addGenConstrIndicator()
    • GRBModel.addQConstr()
    • GRBModel.addRange()
    • GRBModel.addRanges()
    • GRBModel.addSOS()
    • GRBModel.addVar()
    • GRBModel.addVars()
    • GRBModel.chgCoeff()
    • GRBModel.chgCoeffs()
    • GRBModel.computeIIS()
    • GRBModel.discardConcurrentEnvs()
    • GRBModel.discardMultiobjEnvs()
    • GRBModel.dispose()
    • GRBModel.feasRelax()
    • GRBModel.fixedModel()
    • GRBModel.get()
    • GRBModel.getCoeff()
    • GRBModel.getCol()
    • GRBModel.getConcurrentEnv()
    • GRBModel.getConstrByName()
    • GRBModel.getConstrs()
    • GRBModel.getEnv()
    • GRBModel.getGenConstrMax()
    • GRBModel.getGenConstrMin()
    • GRBModel.getGenConstrAbs()
    • GRBModel.getGenConstrAnd()
    • GRBModel.getGenConstrOr()
    • GRBModel.getGenConstrIndicator()
    • GRBModel.getGenConstrs()
    • GRBModel.getMultiobjEnv()
    • GRBModel.getObjective()
    • GRBModel.getPWLObj()
    • GRBModel.getQCRow()
    • GRBModel.getQConstrs()
    • GRBModel.getRow()
    • GRBModel.getSOS()
    • GRBModel.getSOSs()
    • GRBModel.getTuneResult()
    • GRBModel.getVarByName()
    • GRBModel.getVars()
    • GRBModel.optimize()
    • GRBModel.optimizeasync()
    • GRBModel.presolve()
    • GRBModel.read()
    • GRBModel.remove()
    • GRBModel.reset()
    • GRBModel.setCallback()
    • GRBModel.set()
    • GRBModel.setObjective()
    • GRBModel.setObjectiveN()
    • GRBModel.setPWLObj()
    • GRBModel.sync()
    • GRBModel.terminate()
    • GRBModel.tune()
    • GRBModel.update()
    • GRBModel.write()
  • GRBVar
    • GRBVar.get()
    • GRBVar.sameAs()
    • GRBVar.set()
  • GRBConstr
    • GRBConstr.get()
    • GRBConstr.sameAs()
    • GRBConstr.set()
  • GRBQConstr
    • GRBQConstr.get()
    • GRBQConstr.set()
  • GRBSOS
    • GRBSOS.get()
  • GRBGenConstr
    • GRBGenConstr.get()
    • GRBGenConstr.set()
  • GRBExpr
    • GRBExpr.getValue()
  • GRBLinExpr
    • GRBLinExpr()
    • GRBLinExpr.add()
    • GRBLinExpr.addConstant()
    • GRBLinExpr.addTerm()
    • GRBLinExpr.addTerms()
    • GRBLinExpr.clear()
    • GRBLinExpr.getConstant()
    • GRBLinExpr.getCoeff()
    • GRBLinExpr.getValue()
    • GRBLinExpr.getVar()
    • GRBLinExpr.multAdd()
    • GRBLinExpr.remove()
    • GRBLinExpr.size()
  • GRBQuadExpr
    • GRBQuadExpr()
    • GRBQuadExpr.add()
    • GRBQuadExpr.addConstant()
    • GRBQuadExpr.addTerm()
    • GRBQuadExpr.addTerms()
    • GRBQuadExpr.clear()
    • GRBQuadExpr.getCoeff()
    • GRBQuadExpr.getLinExpr()
    • GRBQuadExpr.getValue()
    • GRBQuadExpr.getVar1()
    • GRBQuadExpr.getVar2()
    • GRBQuadExpr.multAdd()
    • GRBQuadExpr.remove()
    • GRBQuadExpr.size()
  • GRBColumn
    • GRBColumn()
    • GRBColumn.addTerm()
    • GRBColumn.addTerms()
    • GRBColumn.clear()
    • GRBColumn.getCoeff()
    • GRBColumn.getConstr()
    • GRBColumn.remove()
    • GRBColumn.size()
  • GRBCallback
    • GRBCallback()
    • GRBCallback.abort()
    • GRBCallback.addCut()
    • GRBCallback.addLazy()
    • GRBCallback.getDoubleInfo()
    • GRBCallback.getIntInfo()
    • GRBCallback.getNodeRel()
    • GRBCallback.getSolution()
    • GRBCallback.getStringInfo()
    • GRBCallback.setSolution()
    • GRBCallback.useSolution()
  • GRBException
    • GRBException()
    • GRBException.getErrorCode()
  • GRB
    • Constants
    • GRB.CharAttr
    • GRB.DoubleAttr
    • GRB.DoubleParam
    • GRB.IntAttr
    • GRB.IntParam
    • GRB.StringAttr
    • GRB.StringParam
  
  
• .NET API Overview
• .NET API Details
  • GRBEnv
    • GRBEnv()
    • GRBEnv.Dispose()
    • GRBEnv.ErrorMsg
    • GRBEnv.Get()
    • GRBEnv.GetParamInfo()
    • GRBEnv.Message()
    • GRBEnv.ReadParams()
    • GRBEnv.Release()
    • GRBEnv.ResetParams()
    • GRBEnv.Set()
    • GRBEnv.WriteParams()
  • GRBModel
    • GRBModel()
    • GRBModel.AddConstr()
    • GRBModel.AddConstrs()
    • GRBModel.AddGenConstrXxx()
      • GRBModel.AddGenConstrMax()
      • GRBModel.AddGenConstrMin()
      • GRBModel.AddGenConstrAbs()
      • GRBModel.AddGenConstrAnd()
      • GRBModel.AddGenConstrOr()
      • GRBModel.AddGenConstrIndicator()
    • GRBModel.AddQConstr()
    • GRBModel.AddRange()
    • GRBModel.AddRanges()
    • GRBModel.AddSOS()
    • GRBModel.AddVar()
    • GRBModel.AddVars()
    • GRBModel.ChgCoeff()
    • GRBModel.ChgCoeffs()
    • GRBModel.ComputeIIS()
    • GRBModel.DiscardConcurrentEnvs()
    • GRBModel.DiscardMultiobjEnvs()
    • GRBModel.Dispose()
    • GRBModel.FeasRelax()
    • GRBModel.FixedModel()
    • GRBModel.Get()
    • GRBModel.GetCoeff()
    • GRBModel.GetCol()
    • GRBModel.GetConcurrentEnv()
    • GRBModel.GetConstrByName()
    • GRBModel.GetConstrs()
    • GRBModel.GetEnv()
    • GRBModel.GetGenConstrMax()
    • GRBModel.GetGenConstrMin()
    • GRBModel.GetGenConstrAbs()
    • GRBModel.GetGenConstrAnd()
    • GRBModel.GetGenConstrOr()
    • GRBModel.GetGenConstrIndicator()
    • GRBModel.GetGenConstrs()
    • GRBModel.GetMultiobjEnv()
    • GRBModel.GetObjective()
    • GRBModel.GetPWLObj()
    • GRBModel.GetQConstr()
    • GRBModel.GetQConstrs()
    • GRBModel.GetQCRow()
    • GRBModel.GetRow()
    • GRBModel.GetSOS()
    • GRBModel.GetSOSs()
    • GRBModel.GetTuneResult()
    • GRBModel.GetVarByName()
    • GRBModel.GetVars()
    • GRBModel.Optimize()
    • GRBModel::OptimizeAsync()
    • GRBModel.Presolve()
    • GRBModel.Read()
    • GRBModel.Remove()
    • GRBModel.Reset()
    • GRBModel.SetCallback()
    • GRBModel.Set()
    • GRBModel.SetObjective()
    • GRBModel.SetObjectiveN()
    • GRBModel.SetPWLObj()
    • GRBModel.Terminate()
    • GRBModel.Tune()
    • GRBModel.Update()
    • GRBModel.Write()
  • GRBVar
    • GRBVar.Get()
    • GRBVar.SameAs()
    • GRBVar.Set()
  • GRBConstr
    • GRBConstr.Get()
    • GRBConstr.SameAs()
    • GRBConstr.Set()
  • GRBQConstr
    • GRBQConstr.Get()
    • GRBQConstr.Set()
  • GRBSOS
    • GRBSOS.Get()
  • GRBGenConstr
    • GRBGenConstr.Get()
    • GRBGenConstr.Set()
  • GRBExpr
    • GRBExpr.Value
  • GRBLinExpr
    • GRBLinExpr()
    • GRBLinExpr.Add()
    • GRBLinExpr.AddConstant()
    • GRBLinExpr.AddTerm()
    • GRBLinExpr.AddTerms()
    • GRBLinExpr.Clear()
    • GRBLinExpr.Constant
    • GRBLinExpr.GetCoeff()
    • GRBLinExpr.GetVar()
    • GRBLinExpr.MultAdd()
    • GRBLinExpr.Remove()
    • GRBLinExpr.Size
    • GRBLinExpr.Value
  • GRBQuadExpr
    • GRBQuadExpr()
    • GRBQuadExpr.Add()
    • GRBQuadExpr.AddConstant()
    • GRBQuadExpr.AddTerm()
    • GRBQuadExpr.AddTerms()
    • GRBQuadExpr.Clear()
    • GRBQuadExpr.GetCoeff()
    • GRBQuadExpr.GetVar1()
    • GRBQuadExpr.GetVar2()
    • GRBQuadExpr.LinExpr()
    • GRBQuadExpr.MultAdd()
    • GRBQuadExpr.Remove()
    • GRBQuadExpr.Size
    • GRBQuadExpr.Value
  • GRBTempConstr
  • GRBColumn
    • GRBColumn()
    • GRBColumn.AddTerm()
    • GRBColumn.AddTerms()
    • GRBColumn.Clear()
    • GRBColumn.GetCoeff()
    • GRBColumn.GetConstr()
    • GRBColumn.Remove()
    • GRBColumn.Size
  • Overloaded Operators
    • operator <=
    • operator >=
    • operator ==
    • operator +
    • operator -
    • operator *
    • operator /
    • implicit cast
  • GRBCallback
    • GRBCallback()
    • GRBCallback.Abort()
    • GRBCallback.AddCut()
    • GRBCallback.AddLazy()
    • GRBCallback.GetDoubleInfo()
    • GRBCallback.GetIntInfo()
    • GRBCallback.GetNodeRel()
    • GRBCallback.GetSolution()
    • GRBCallback.GetStringInfo()
    • GRBCallback.SetSolution()
    • GRBCallback.UseSolution()
  • GRBException
    • GRBException()
    • GRBException.ErrorCode
  • GRB
    • Constants
    • GRB.CharAttr
    • GRB.DoubleAttr
    • GRB.DoubleParam
    • GRB.IntAttr
    • GRB.IntParam
    • GRB.StringAttr
    • GRB.StringParam
  
  
• Python API Overview
• Python API Details
  • Global Functions
    • models()
    • disposeDefaultEnv()
    • multidict()
    • paramHelp()
    • quicksum()
    • read()
    • readParams()
    • resetParams()
    • setParam()
    • system()
    • writeParams()
  • Model
    • Model()
    • Model.addConstr()
    • Model.addConstrs()
    • Model.addGenConstrXxx()
    • Model.addGenConstrMax()
    • Model.addGenConstrMin()
    • Model.addGenConstrAbs()
    • Model.addGenConstrAnd()
    • Model.addGenConstrOr()
    • Model.addGenConstrIndicator()
    • Model.addQConstr()
    • Model.addRange()
    • Model.addSOS()
    • Model.addVar()
    • Model.addVars()
    • Model.cbCut()
    • Model.cbGet()
    • Model.cbGetNodeRel()
    • Model.cbGetSolution()
    • Model.cbLazy()
    • Model.cbSetSolution()
    • Model.cbUseSolution()
    • Model.chgCoeff()
    • Model.computeIIS()
    • Model.copy()
    • Model.discardConcurrentEnvs()
    • Model.discardMultiobjEnvs()
    • Model.feasRelaxS()
    • Model.feasRelax()
    • Model.fixed()
    • Model.getAttr()
    • Model.getCoeff()
    • Model.getCol()
    • Model.getConcurrentEnv()
    • Model.getConstrByName()
    • Model.getConstrs()
    • Model.getGenConstrMax()
    • Model.getGenConstrMin()
    • Model.getGenConstrAbs()
    • Model.getGenConstrAnd()
    • Model.getGenConstrOr()
    • Model.getGenConstrIndicator()
    • Model.getGenConstrs()
    • Model.getMultiobjEnv()
    • Model.getObjective()
    • Model.getParamInfo()
    • Model.getPWLObj()
    • Model.getQConstrs()
    • Model.getQCRow()
    • Model.getRow()
    • Model.getSOS()
    • Model.getSOSs()
    • Model.getTuneResult()
    • Model.getVarByName()
    • Model.getVars()
    • Model.message()
    • Model.optimize()
    • Model.presolve()
    • Model.printAttr()
    • Model.printQuality()
    • Model.printStats()
    • Model.read()
    • Model.relax()
    • Model.remove()
    • Model.reset()
    • Model.resetParams()
    • Model.setAttr()
    • Model.setObjective()
    • Model.setObjectiveN()
    • Model.setPWLObj()
    • Model.setParam()
    • Model.terminate()
    • Model.tune()
    • Model.update()
    • Model.write()
  • Var
    • Var.getAttr()
    • Var.sameAs()
    • Var.setAttr()
  • Constr
    • Constr.getAttr()
    • Constr.sameAs()
    • Constr.setAttr()
  • QConstr
    • QConstr.getAttr()
    • QConstr.setAttr()
  • SOS
    • SOS.getAttr()
  • GenConstr
    • GenConstr.getAttr()
    • GenConstr.setAttr()
  • LinExpr
    • LinExpr()
    • LinExpr.add()
    • LinExpr.addConstant()
    • LinExpr.addTerms()
    • LinExpr.clear()
    • LinExpr.copy()
    • LinExpr.getConstant()
    • LinExpr.getCoeff()
    • LinExpr.getValue()
    • LinExpr.getVar()
    • LinExpr.remove()
    • LinExpr.size()
    • LinExpr.__eq__()
    • LinExpr.__le__()
    • LinExpr.__ge__()
  • QuadExpr
    • QuadExpr()
    • QuadExpr.add()
    • QuadExpr.addConstant()
    • QuadExpr.addTerms()
    • QuadExpr.clear()
    • QuadExpr.copy()
    • QuadExpr.getCoeff()
    • QuadExpr.getLinExpr()
    • QuadExpr.getValue()
    • QuadExpr.getVar1()
    • QuadExpr.getVar2()
    • QuadExpr.remove()
    • QuadExpr.size()
    • QuadExpr.__eq__()
    • QuadExpr.__le__()
    • QuadExpr.__ge__()
  • GenExpr
  • TempConstr
  • Column
    • Column()
    • Column.addTerms()
    • Column.clear()
    • Column.copy()
    • Column.getCoeff()
    • Column.getConstr()
    • Column.remove()
    • Column.size()
  • Callbacks
  • GurobiError
  • Env
    • Env()
    • Env.ClientEnv()
    • Env.CloudEnv()
    • Env.resetParams()
    • Env.setParam()
    • Env.writeParams()
  • GRB
    • Constants
    • GRB.Attr
    • GRB.Param
  • tuplelist
    • tuplelist()
    • tuplelist.select()
    • tuplelist.clean()
    • tuplelist.__contains__()
  • tupledict
    • tupledict()
    • tupledict.select()
    • tupledict.sum()
    • tupledict.prod()
    • tupledict.clean()
  • General Constraint Helper Functions
    • abs_()
    • and_()
    • max_()
    • min_()
    • or_()
  
  
• MATLAB API Overview
  • Solving models with the Gurobi MATLAB interface
    • gurobi()
  • Reading and writing models with the Gurobi MATLAB interface
    • gurobi_read()
    • gurobi_write()
  • Computing an IIS with the Gurobi MATLAB interface
    • gurobi_iis()
  • Setting up the Gurobi MATLAB interface
  
  
• R API Overview
  • Solving models with the Gurobi R interface
  • Writing models with the Gurobi R interface
  • Installing the R package
  
  
• Variables and Constraints
  • Variables
  • Constraints
  • Tolerances and Ill Conditioning - A Caveat
  
  
• Attributes
  • Model Attributes
    • NumConstrs
    • NumVars
    • NumSOS
    • NumQConstrs
    • NumGenConstrs
    • NumNZs
    • DNumNZs
    • NumQNZs
    • NumQCNZs
    • NumIntVars
    • NumBinVars
    • NumPWLObjVars
    • ModelName
    • ModelSense
    • ObjCon
    • ObjVal
    • ObjBound
    • ObjBoundC
    • PoolObjBound
    • PoolObjVal
    • MIPGap
    • Runtime
    • Status
    • SolCount
    • IterCount
    • BarIterCount
    • NodeCount
    • IsMIP
    • IsQP
    • IsQCP
    • IsMultiObj
    • IISMinimal
    • MaxCoeff
    • MinCoeff
    • MaxBound
    • MinBound
    • MaxObjCoeff
    • MinObjCoeff
    • MaxRHS
    • MinRHS
    • MaxQCCoeff
    • MinQCCoeff
    • MaxQCLCoeff
    • MinQCLCoeff
    • MaxQCRHS
    • MinQCRHS
    • MaxQObjCoeff
    • MinQObjCoeff
    • Kappa
    • KappaExact
    • FarkasProof
    • TuneResultCount
    • LicenseExpiration
  • Variable Attributes
    • LB
    • UB
    • Obj
    • VType
    • VarName
    • X
    • Xn
    • RC
    • BarX
    • Start
    • VarHintVal
    • VarHintPri
    • BranchPriority
    • VBasis
    • PStart
    • IISLB
    • IISUB
    • PWLObjCvx
    • SAObjLow
    • SAObjUp
    • SALBLow
    • SALBUp
    • SAUBLow
    • SAUBUp
    • UnbdRay
  • Linear Constraint Attributes
    • Sense
    • RHS
    • ConstrName
    • Pi
    • Slack
    • CBasis
    • DStart
    • Lazy
    • IISConstr
    • SARHSLow
    • SARHSUp
    • FarkasDual
  • SOS Attributes
    • IISSOS
  • Quadratic Constraint Attributes
    • QCSense
    • QCRHS
    • QCName
    • QCPi
    • QCSlack
    • IISQConstr
  • General Constraint Attributes
    • GenConstrType
    • GenConstrName
    • IISGenConstr
  • Quality Attributes
    • BoundVio
    • BoundSVio
    • BoundVioIndex
    • BoundSVioIndex
    • BoundVioSum
    • BoundSVioSum
    • ConstrVio
    • ConstrSVio
    • ConstrVioIndex
    • ConstrSVioIndex
    • ConstrVioSum
    • ConstrSVioSum
    • ConstrResidual
    • ConstrSResidual
    • ConstrResidualIndex
    • ConstrSResidualIndex
    • ConstrResidualSum
    • ConstrSResidualSum
    • DualVio
    • DualSVio
    • DualVioIndex
    • DualSVioIndex
    • DualVioSum
    • DualSVioSum
    • DualResidual
    • DualSResidual
    • DualResidualIndex
    • DualSResidualIndex
    • DualResidualSum
    • DualSResidualSum
    • ComplVio
    • ComplVioIndex
    • ComplVioSum
    • IntVio
    • IntVioIndex
    • IntVioSum
  • Multi-objective Attributes
    • ObjN
    • ObjNCon
    • ObjNPriority
    • ObjNWeight
    • ObjNRelTol
    • ObjNAbsTol
    • ObjNVal
    • ObjNName
    • NumObj
  • Attribute Examples
    • C Attribute Examples
    • C++ Attribute Examples
    • C# Attribute Examples
    • Java Attribute Examples
    • Python Attribute Examples
    • Visual Basic Attribute Examples
  
  
• Parameters
  • Parameter Guidelines
    • Continuous Models
    • MIP Models
  • Parameter Descriptions
    • AggFill
    • Aggregate
    • BarConvTol
    • BarCorrectors
    • BarHomogeneous
    • BarOrder
    • BarQCPConvTol
    • BarIterLimit
    • BestBdStop
    • BestObjStop
    • BranchDir
    • DegenMoves
    • CliqueCuts
    • ConcurrentJobs
    • ConcurrentMIP
    • ConcurrentSettings
    • CoverCuts
    • Crossover
    • CrossoverBasis
    • Cutoff
    • CutAggPasses
    • CutPasses
    • Cuts
    • Disconnected
    • DisplayInterval
    • DistributedMIPJobs
    • DualReductions
    • FeasibilityTol
    • FeasRelaxBigM
    • FlowCoverCuts
    • FlowPathCuts
    • GomoryPasses
    • GUBCoverCuts
    • Heuristics
    • IISMethod
    • ImpliedCuts
    • ImproveStartGap
    • ImproveStartNodes
    • ImproveStartTime
    • InfProofCuts
    • InfUnbdInfo
    • InputFile
    • IntFeasTol
    • IterationLimit
    • LazyConstraints
    • LogFile
    • LogToConsole
    • MarkowitzTol
    • Method
    • MinRelNodes
    • MIPFocus
    • MIPGap
    • MIPGapAbs
    • MIPSepCuts
    • MIQCPMethod
    • MIRCuts
    • ModKCuts
    • MultiObjMethod
    • MultiObjPre
    • NetworkCuts
    • NodefileDir
    • NodefileStart
    • NodeLimit
    • NodeMethod
    • IgnoreNames
    • NormAdjust
    • NumericFocus
    • ObjScale
    • OptimalityTol
    • ObjNumber
    • OutputFlag
    • PerturbValue
    • PoolGap
    • PoolSearchMode
    • PoolSolutions
    • PreCrush
    • PreDepRow
    • PreDual
    • PreMIQCPForm
    • PrePasses
    • PreQLinearize
    • Presolve
    • PreSOS1BigM
    • PreSOS2BigM
    • PreSparsify
    • ProjImpliedCuts
    • PSDTol
    • PumpPasses
    • QCPDual
    • Quad
    • Record
    • ResultFile
    • RINS
    • ScaleFlag
    • Seed
    • Sifting
    • SiftMethod
    • SimplexPricing
    • SolutionLimit
    • SolutionNumber
    • StartNodeLimit
    • StrongCGCuts
    • SubMIPCuts
    • SubMIPNodes
    • Symmetry
    • Threads
    • TimeLimit
    • TuneCriterion
    • TuneJobs
    • TuneOutput
    • TuneResults
    • TuneTimeLimit
    • TuneTrials
    • UpdateMode
    • VarBranch
    • WorkerPassword
    • WorkerPool
    • WorkerPort
    • ZeroHalfCuts
    • ZeroObjNodes
  • Parameter Examples
    • C Parameter Examples
    • C++ Parameter Examples
    • C# Parameter Examples
    • Java Parameter Examples
    • MATLAB Parameter Examples
    • Python Parameter Examples
    • R Parameter Examples
    • Visual Basic Parameter Examples
  
  
• Optimization Status Codes
• Callback Codes
• Error Codes
• Model File Formats
  • MPS format
  • REW format
  • LP format
  • RLP format
  • ILP format
  • OPB format
  • MST format
  • HNT format
  • ORD format
  • BAS format
  • SOL format
  • PRM format
  
  
• Logging
  • Simplex Logging
  • Barrier Logging
  • Sifting Logging
  • MIP Logging
  • Multi-Objective Logging
  • Distributed MIP Logging
  
  
• Gurobi Command-Line Tool
  • Solving a Model
  • Replaying Recording Files
  • Gurobi Remote Services and Compute Server Administration
  
  
• Solution Pool
  • Finding Multiple Solutions
  • Examples
  • Retrieving Solutions
  • Subtleties and Limitations
  
  
• Multiple Objectives
  • Specifying Multiple Objectives
  • Working With Multiple Objective
  • Additional Details
  
  
• Recording API Calls
  • Recording
  • Replay
  • Limitations
  
  
• Concurrent Optimizer
• Parameter Tuning Tool
  • Command-Line Tuning
  • Tuning API
  
  
• Gurobi Remote Services
  • Setting Up and Administering Gurobi Remote Services
    • Gurobi Remote Services Parameters
    • Firewalls
    • Administrative Commands
    • Copyright Notice for 3rd Party Library
  
  
• Distributed Parallel Algorithms
  • Configuring a Distributed Worker Pool
  • Writing Your Own Distributed Algorithms
  • Distributed Algorithm Considerations
  
  
• Gurobi Compute Server
  • Setting Up and Administering a Gurobi Compute Server
  • Compute Server Usage
    • Client Configuration
    • Job Priorities
    • Performance Considerations on a Wide-Area Network (WAN)
    • Callbacks
    • Developing for Compute Server
    • Acknowledgement of 3rd Party Icons
  
  
• Gurobi Instant Cloud
  • Client Setup
  • Instant Cloud Setup
  • Copyright Notice for 3rd Party Libraries