C++ OsiSolverInterface::isContinuous方法代码示例

void
CglLandP::CachedData::getData(const OsiSolverInterface &si)
{
    int nBasics = si.getNumRows();
    int nNonBasics = si.getNumCols();
    if (basis_ != NULL)
        delete basis_;
    basis_ = dynamic_cast<CoinWarmStartBasis *> (si.getWarmStart());
    if (!basis_)
        throw NoBasisError();

    if (nBasics_ > 0 || nBasics != nBasics_)
    {
        delete [] basics_;
        basics_ = NULL;
    }
    if (basics_ == NULL)
    {
        basics_ = new int[nBasics];
        nBasics_ = nBasics;
    }

    if (nNonBasics_ > 0 || nNonBasics != nNonBasics_)
    {
        delete [] nonBasics_;
        nonBasics_ = NULL;
    }
    if (nonBasics_ == NULL)
    {
        nonBasics_ = new int[nNonBasics];
        nNonBasics_ = nNonBasics;
    }
    int n = nBasics + nNonBasics;
    if ( nBasics_ + nNonBasics_ > 0 || nBasics_ + nNonBasics_ != n)
    {
        delete [] colsol_;
        delete [] integers_;
        integers_ = NULL;
        colsol_ = NULL;
        slacks_ = NULL;
    }
    if (colsol_ == NULL)
    {
        colsol_ = new double[n];
        slacks_ = &colsol_[nNonBasics];
    }

    if (integers_ == NULL)
    {
        integers_ = new bool[n];
    }

    const double * rowLower = si.getRowLower();
    const double * rowUpper = si.getRowUpper();
    //determine which slacks are integer
    const CoinPackedMatrix * m = si.getMatrixByCol();
    const double * elems = m->getElements();
    const int * inds = m->getIndices();
    const CoinBigIndex * starts = m->getVectorStarts();
    const int * lengths = m->getVectorLengths();
    //    int numElems = m->getNumElements();
    int numCols = m->getNumCols();
    assert(numCols == nNonBasics_);
    //   int numRows = m->getNumRows();
    CoinFillN(integers_ ,n, true);
    for (int i = 0 ;  i < numCols ; i++)
    {
        if (si.isContinuous(i))
            integers_[i] = false;
    }
    bool * integerSlacks = integers_ + numCols;
    for (int i = 0 ; i < nBasics ; i++)
    {
        if (rowLower[i] > -1e50 && INT_INFEAS(rowLower[i]) > 1e-15)
            integerSlacks[i] = false;
        if (rowUpper[i] < 1e50 && INT_INFEAS(rowUpper[i]) > 1e-15)
            integerSlacks[i] = false;
    }
    for (int i = 0 ;  i < numCols ; i++)
    {
        CoinBigIndex end = starts[i] + lengths[i];
        if (integers_[i])
        {
            for (CoinBigIndex k=starts[i] ; k < end; k++)
            {
                if (integerSlacks[inds[k]] && INT_INFEAS(elems[k])>1e-15 )
                    integerSlacks[inds[k]] = false;
            }
        }
        else
        {
            for (CoinBigIndex k=starts[i] ; k < end; k++)
            {
                if (integerSlacks[inds[k]])
                    integerSlacks[inds[k]] = false;
            }
        }
    }

    CoinCopyN(si.getColSolution(), si.getNumCols(), colsol_);
//.........这里部分代码省略.........

//--------------------------------------------------------------------------
// test EKKsolution methods.
void
CglOddHoleUnitTest(
  const OsiSolverInterface * baseSiP,
  const std::string mpsDir )
{
  CoinRelFltEq eq(0.000001);

  // Test default constructor
  {
    CglOddHole aGenerator;
  }
  
  // Test copy & assignment
  {
    CglOddHole rhs;
    {
      CglOddHole bGenerator;
      CglOddHole cGenerator(bGenerator);
      rhs=bGenerator;
    }
  }


  // test on simple case
  {  
    const int nRows=3;
    const int nCols=3;
    const int nEls=6;
    const double elem[]={1.0,1.0,1.0,1.0,1.0,1.0};
    const int row[]={0,1,0,2,1,2};
    const CoinBigIndex start[]={0,2,4};
    const int len[]={2,2,2};
    CoinPackedMatrix matrix(true,nRows,nCols,nEls,elem,row,start,len);
    const double sol[]={0.5,0.5,0.5};
    const double dj[]={0,0,0};
    const int which[]={1,1,1};
    const int fixed[]={0,0,0};
    OsiCuts cs;
    CglOddHole test1;
    CglTreeInfo info;
    info.randomNumberGenerator=NULL;
    test1.generateCuts(NULL,matrix,sol,dj,cs,which,fixed,info,true);
    CoinPackedVector check;
    int index[] = {0,1,2};
    double el[] = {1,1,1};
    check.setVector(3,index,el);
    //assert (cs.sizeRowCuts()==2);
    assert (cs.sizeRowCuts()==1);
    // sort Elements in increasing order
    CoinPackedVector rpv=cs.rowCut(0).row();
    rpv.sortIncrIndex();
    assert (check==rpv);
  }
  
  // Testcase /u/rlh/osl2/mps/scOneInt.mps
  // Model has 3 continous, 2 binary, and 1 general
  // integer variable.
  {
    OsiSolverInterface  * siP = baseSiP->clone();
    
    std::string fn = mpsDir+"scOneInt";
    siP->readMps(fn.c_str(),"mps");
#if 0
    CglOddHole cg;
    int nCols=siP->getNumCols();
    
    // Test the siP methods for detecting
    // variable type
    int numCont=0, numBinary=0, numIntNonBinary=0, numInt=0;
    for (int thisCol=0; thisCol<nCols; thisCol++) {
      if ( siP->isContinuous(thisCol) ) numCont++;
      if ( siP->isBinary(thisCol) ) numBinary++;
      if ( siP->isIntegerNonBinary(thisCol) ) numIntNonBinary++;
      if ( siP->isInteger(thisCol) ) numInt++;
    }
    assert(numCont==3);
    assert(numBinary==2);
    assert(numIntNonBinary==1);
    assert(numInt==3);
    
    
    // Test initializeCutGenerator
    siP->initialSolve();
    assert(xstar !=NULL);
    for (i=0; i<nCols; i++){
      assert(complement[i]==0);
    }
    int nRows=siP->getNumRows();
    for (i=0; i<nRows; i++){
    int vectorsize = siP->getMatrixByRow()->getVectorSize(i);
    assert(vectorsize==2);
    }
    
    kccg.cleanUpCutGenerator(complement,xstar);
#endif  
    delete siP;
  }

//.........这里部分代码省略.........