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# /home/coin/svn-release/Alps-1.5.2/Clp/src/ClpInterior.hpp

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    00001 /* $Id: ClpInterior.hpp 1665 2011-01-04 17:55:54Z lou $ */
    00002 // Copyright (C) 2003, International Business Machines
    00003 // Corporation and others.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005 /*
    00006    Authors
    00007
    00008    John Tomlin (pdco)
    00009    John Forrest (standard predictor-corrector)
    00010
    00011    Note JJF has added arrays - this takes more memory but makes
    00012    flow easier to understand and hopefully easier to extend
    00013
    00014  */
    00015 #ifndef ClpInterior_H
    00016 #define ClpInterior_H
    00017
    00018 #include <iostream>
    00019 #include <cfloat>
    00020 #include "ClpModel.hpp"
    00021 #include "ClpMatrixBase.hpp"
    00022 #include "ClpSolve.hpp"
    00023 #include "CoinDenseVector.hpp"
    00024 class ClpLsqr;
    00025 class ClpPdcoBase;
    00027 typedef struct {
    00028      double  atolmin;
    00029      double  r3norm;
    00030      double  LSdamp;
    00031      double* deltay;
    00032 } Info;
    00034
    00035 typedef struct {
    00036      double  atolold;
    00037      double  atolnew;
    00038      double  r3ratio;
    00039      int   istop;
    00040      int   itncg;
    00041 } Outfo;
    00043
    00044 typedef struct {
    00045      double  gamma;
    00046      double  delta;
    00047      int MaxIter;
    00048      double  FeaTol;
    00049      double  OptTol;
    00050      double  StepTol;
    00051      double  x0min;
    00052      double  z0min;
    00053      double  mu0;
    00054      int   LSmethod;   // 1=Cholesky    2=QR    3=LSQR
    00055      int   LSproblem;  // See below
    00056      int LSQRMaxIter;
    00057      double  LSQRatol1; // Initial  atol
    00058      double  LSQRatol2; // Smallest atol (unless atol1 is smaller)
    00059      double  LSQRconlim;
    00060      int  wait;
    00061 } Options;
    00062 class Lsqr;
    00063 class ClpCholeskyBase;
    00064 // ***** END
    00072 class ClpInterior : public ClpModel {
    00073      friend void ClpInteriorUnitTest(const std::string & mpsDir,
    00074                                      const std::string & netlibDir);
    00075
    00076 public:
    00077
    00080
    00081      ClpInterior (  );
    00082
    00084      ClpInterior(const ClpInterior &);
    00086      ClpInterior(const ClpModel &);
    00091      ClpInterior (const ClpModel * wholeModel,
    00092                   int numberRows, const int * whichRows,
    00093                   int numberColumns, const int * whichColumns,
    00094                   bool dropNames = true, bool dropIntegers = true);
    00096      ClpInterior & operator=(const ClpInterior & rhs);
    00098      ~ClpInterior (  );
    00099      // Ones below are just ClpModel with some changes
    00111      void loadProblem (  const ClpMatrixBase& matrix,
    00112                          const double* collb, const double* colub,
    00113                          const double* obj,
    00114                          const double* rowlb, const double* rowub,
    00115                          const double * rowObjective = NULL);
    00116      void loadProblem (  const CoinPackedMatrix& matrix,
    00117                          const double* collb, const double* colub,
    00118                          const double* obj,
    00119                          const double* rowlb, const double* rowub,
    00120                          const double * rowObjective = NULL);
    00121
    00124      void loadProblem (  const int numcols, const int numrows,
    00125                          const CoinBigIndex* start, const int* index,
    00126                          const double* value,
    00127                          const double* collb, const double* colub,
    00128                          const double* obj,
    00129                          const double* rowlb, const double* rowub,
    00130                          const double * rowObjective = NULL);
    00132      void loadProblem (  const int numcols, const int numrows,
    00133                          const CoinBigIndex* start, const int* index,
    00134                          const double* value, const int * length,
    00135                          const double* collb, const double* colub,
    00136                          const double* obj,
    00137                          const double* rowlb, const double* rowub,
    00138                          const double * rowObjective = NULL);
    00140      int readMps(const char *filename,
    00141                  bool keepNames = false,
    00142                  bool ignoreErrors = false);
    00147      void borrowModel(ClpModel & otherModel);
    00149      void returnModel(ClpModel & otherModel);
    00151
    00155      int pdco();
    00156      // ** Temporary version
    00157      int  pdco( ClpPdcoBase * stuff, Options &options, Info &info, Outfo &outfo);
    00159      int primalDual();
    00161
    00164
    00165      inline bool primalFeasible() const {
    00166           return (sumPrimalInfeasibilities_ <= 1.0e-5);
    00167      }
    00169      inline bool dualFeasible() const {
    00170           return (sumDualInfeasibilities_ <= 1.0e-5);
    00171      }
    00173      inline int algorithm() const {
    00174           return algorithm_;
    00175      }
    00177      inline void setAlgorithm(int value) {
    00178           algorithm_ = value;
    00179      }
    00181      inline CoinWorkDouble sumDualInfeasibilities() const {
    00182           return sumDualInfeasibilities_;
    00183      }
    00185      inline CoinWorkDouble sumPrimalInfeasibilities() const {
    00186           return sumPrimalInfeasibilities_;
    00187      }
    00189      inline CoinWorkDouble dualObjective() const {
    00190           return dualObjective_;
    00191      }
    00193      inline CoinWorkDouble primalObjective() const {
    00194           return primalObjective_;
    00195      }
    00197      inline CoinWorkDouble diagonalNorm() const {
    00198           return diagonalNorm_;
    00199      }
    00201      inline CoinWorkDouble linearPerturbation() const {
    00202           return linearPerturbation_;
    00203      }
    00204      inline void setLinearPerturbation(CoinWorkDouble value) {
    00205           linearPerturbation_ = value;
    00206      }
    00208      inline CoinWorkDouble projectionTolerance() const {
    00209           return projectionTolerance_;
    00210      }
    00211      inline void setProjectionTolerance(CoinWorkDouble value) {
    00212           projectionTolerance_ = value;
    00213      }
    00215      inline CoinWorkDouble diagonalPerturbation() const {
    00216           return diagonalPerturbation_;
    00217      }
    00218      inline void setDiagonalPerturbation(CoinWorkDouble value) {
    00219           diagonalPerturbation_ = value;
    00220      }
    00222      inline CoinWorkDouble gamma() const {
    00223           return gamma_;
    00224      }
    00225      inline void setGamma(CoinWorkDouble value) {
    00226           gamma_ = value;
    00227      }
    00229      inline CoinWorkDouble delta() const {
    00230           return delta_;
    00231      }
    00232      inline void setDelta(CoinWorkDouble value) {
    00233           delta_ = value;
    00234      }
    00236      inline CoinWorkDouble complementarityGap() const {
    00237           return complementarityGap_;
    00238      }
    00240
    00243
    00244      inline CoinWorkDouble largestPrimalError() const {
    00245           return largestPrimalError_;
    00246      }
    00248      inline CoinWorkDouble largestDualError() const {
    00249           return largestDualError_;
    00250      }
    00252      inline int maximumBarrierIterations() const {
    00253           return maximumBarrierIterations_;
    00254      }
    00255      inline void setMaximumBarrierIterations(int value) {
    00256           maximumBarrierIterations_ = value;
    00257      }
    00259      void setCholesky(ClpCholeskyBase * cholesky);
    00261      int numberFixed() const;
    00264      void fixFixed(bool reallyFix = true);
    00266      inline CoinWorkDouble * primalR() const {
    00267           return primalR_;
    00268      }
    00270      inline CoinWorkDouble * dualR() const {
    00271           return dualR_;
    00272      }
    00274
    00275 protected:
    00278
    00279      void gutsOfDelete();
    00281      void gutsOfCopy(const ClpInterior & rhs);
    00283      bool createWorkingData();
    00284      void deleteWorkingData();
    00286      bool sanityCheck();
    00288      int housekeeping();
    00290 public:
    00293
    00294      inline CoinWorkDouble rawObjectiveValue() const {
    00295           return objectiveValue_;
    00296      }
    00298      inline int isColumn(int sequence) const {
    00299           return sequence < numberColumns_ ? 1 : 0;
    00300      }
    00302      inline int sequenceWithin(int sequence) const {
    00303           return sequence < numberColumns_ ? sequence : sequence - numberColumns_;
    00304      }
    00306      void checkSolution();
    00309      CoinWorkDouble quadraticDjs(CoinWorkDouble * djRegion, const CoinWorkDouble * solution,
    00310                                  CoinWorkDouble scaleFactor);
    00311
    00313      inline void setFixed( int sequence) {
    00314           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 1) ;
    00315      }
    00316      inline void clearFixed( int sequence) {
    00317           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~1) ;
    00318      }
    00319      inline bool fixed(int sequence) const {
    00320           return ((status_[sequence] & 1) != 0);
    00321      }
    00322
    00324      inline void setFlagged( int sequence) {
    00325           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 2) ;
    00326      }
    00327      inline void clearFlagged( int sequence) {
    00328           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~2) ;
    00329      }
    00330      inline bool flagged(int sequence) const {
    00331           return ((status_[sequence] & 2) != 0);
    00332      }
    00333
    00335      inline void setFixedOrFree( int sequence) {
    00336           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 4) ;
    00337      }
    00338      inline void clearFixedOrFree( int sequence) {
    00339           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~4) ;
    00340      }
    00341      inline bool fixedOrFree(int sequence) const {
    00342           return ((status_[sequence] & 4) != 0);
    00343      }
    00344
    00346      inline void setLowerBound( int sequence) {
    00347           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 8) ;
    00348      }
    00349      inline void clearLowerBound( int sequence) {
    00350           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~8) ;
    00351      }
    00352      inline bool lowerBound(int sequence) const {
    00353           return ((status_[sequence] & 8) != 0);
    00354      }
    00355
    00357      inline void setUpperBound( int sequence) {
    00358           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 16) ;
    00359      }
    00360      inline void clearUpperBound( int sequence) {
    00361           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~16) ;
    00362      }
    00363      inline bool upperBound(int sequence) const {
    00364           return ((status_[sequence] & 16) != 0);
    00365      }
    00366
    00368      inline void setFakeLower( int sequence) {
    00369           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 32) ;
    00370      }
    00371      inline void clearFakeLower( int sequence) {
    00372           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~32) ;
    00373      }
    00374      inline bool fakeLower(int sequence) const {
    00375           return ((status_[sequence] & 32) != 0);
    00376      }
    00377
    00379      inline void setFakeUpper( int sequence) {
    00380           status_[sequence] = static_cast<unsigned char>(status_[sequence] | 64) ;
    00381      }
    00382      inline void clearFakeUpper( int sequence) {
    00383           status_[sequence] = static_cast<unsigned char>(status_[sequence] & ~64) ;
    00384      }
    00385      inline bool fakeUpper(int sequence) const {
    00386           return ((status_[sequence] & 64) != 0);
    00387      }
    00389
    00391 protected:
    00392
    00399
    00400      CoinWorkDouble largestPrimalError_;
    00402      CoinWorkDouble largestDualError_;
    00404      CoinWorkDouble sumDualInfeasibilities_;
    00406      CoinWorkDouble sumPrimalInfeasibilities_;
    00408      CoinWorkDouble worstComplementarity_;
    00410 public:
    00411      CoinWorkDouble xsize_;
    00412      CoinWorkDouble zsize_;
    00413 protected:
    00415      CoinWorkDouble * lower_;
    00417      CoinWorkDouble * rowLowerWork_;
    00419      CoinWorkDouble * columnLowerWork_;
    00421      CoinWorkDouble * upper_;
    00423      CoinWorkDouble * rowUpperWork_;
    00425      CoinWorkDouble * columnUpperWork_;
    00427      CoinWorkDouble * cost_;
    00428 public:
    00430      CoinWorkDouble * rhs_;
    00431      CoinWorkDouble * x_;
    00432      CoinWorkDouble * y_;
    00433      CoinWorkDouble * dj_;
    00434 protected:
    00436      ClpLsqr * lsqrObject_;
    00438      ClpPdcoBase * pdcoStuff_;
    00441      CoinWorkDouble mu_;
    00443      CoinWorkDouble objectiveNorm_;
    00445      CoinWorkDouble rhsNorm_;
    00447      CoinWorkDouble solutionNorm_;
    00449      CoinWorkDouble dualObjective_;
    00451      CoinWorkDouble primalObjective_;
    00453      CoinWorkDouble diagonalNorm_;
    00455      CoinWorkDouble stepLength_;
    00457      CoinWorkDouble linearPerturbation_;
    00459      CoinWorkDouble diagonalPerturbation_;
    00460      // gamma from Saunders and Tomlin regularized
    00461      CoinWorkDouble gamma_;
    00462      // delta from Saunders and Tomlin regularized
    00463      CoinWorkDouble delta_;
    00465      CoinWorkDouble targetGap_;
    00467      CoinWorkDouble projectionTolerance_;
    00469      CoinWorkDouble maximumRHSError_;
    00471      CoinWorkDouble maximumBoundInfeasibility_;
    00473      CoinWorkDouble maximumDualError_;
    00475      CoinWorkDouble diagonalScaleFactor_;
    00477      CoinWorkDouble scaleFactor_;
    00479      CoinWorkDouble actualPrimalStep_;
    00481      CoinWorkDouble actualDualStep_;
    00483      CoinWorkDouble smallestInfeasibility_;
    00485 #define LENGTH_HISTORY 5
    00486      CoinWorkDouble historyInfeasibility_[LENGTH_HISTORY];
    00488      CoinWorkDouble complementarityGap_;
    00490      CoinWorkDouble baseObjectiveNorm_;
    00492      CoinWorkDouble worstDirectionAccuracy_;
    00494      CoinWorkDouble maximumRHSChange_;
    00496      CoinWorkDouble * errorRegion_;
    00498      CoinWorkDouble * rhsFixRegion_;
    00500      CoinWorkDouble * upperSlack_;
    00502      CoinWorkDouble * lowerSlack_;
    00504      CoinWorkDouble * diagonal_;
    00506      CoinWorkDouble * solution_;
    00508      CoinWorkDouble * workArray_;
    00510      CoinWorkDouble * deltaX_;
    00512      CoinWorkDouble * deltaY_;
    00514      CoinWorkDouble * deltaZ_;
    00516      CoinWorkDouble * deltaW_;
    00518      CoinWorkDouble * deltaSU_;
    00519      CoinWorkDouble * deltaSL_;
    00521      CoinWorkDouble * primalR_;
    00523      CoinWorkDouble * dualR_;
    00525      CoinWorkDouble * rhsB_;
    00527      CoinWorkDouble * rhsU_;
    00529      CoinWorkDouble * rhsL_;
    00531      CoinWorkDouble * rhsZ_;
    00533      CoinWorkDouble * rhsW_;
    00535      CoinWorkDouble * rhsC_;
    00537      CoinWorkDouble * zVec_;
    00539      CoinWorkDouble * wVec_;
    00541      ClpCholeskyBase * cholesky_;
    00543      int numberComplementarityPairs_;
    00545      int numberComplementarityItems_;
    00547      int maximumBarrierIterations_;
    00549      bool gonePrimalFeasible_;
    00551      bool goneDualFeasible_;
    00553      int algorithm_;
    00555 };
    00556 //#############################################################################
    00565 void
    00566 ClpInteriorUnitTest(const std::string & mpsDir,
    00567                     const std::string & netlibDir);
    00568
    00569
    00570 #endif