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deba@inf.elte.hu
deba@inf.elte.hu
Faster add row operation (#203) One virtual function call instead of more
0 13 0
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13 files changed with 137 insertions and 4 deletions:
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Show white space 2 line context
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@@ -96,2 +96,14 @@
96 96

	
97
  int CbcMip::_addRow(Value l, ExprIterator b, ExprIterator e, Value u) {
98
    std::vector<int> indexes;
99
    std::vector<Value> values;
100

	
101
    for(ExprIterator it = b; it != e; ++it) {
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      indexes.push_back(it->first);
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      values.push_back(it->second);
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    }
105

	
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    _prob->addRow(values.size(), &indexes.front(), &values.front(), l, u);
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    return _prob->numberRows() - 1;
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  }
97 109

	
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@@ -64,2 +64,3 @@
64 64
    virtual int _addRow();
65
    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
65 66

	
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@@ -80,2 +80,15 @@
80 80

	
81
  int ClpLp::_addRow(Value l, ExprIterator b, ExprIterator e, Value u) {
82
    std::vector<int> indexes;
83
    std::vector<Value> values;
84

	
85
    for(ExprIterator it = b; it != e; ++it) {
86
      indexes.push_back(it->first);
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      values.push_back(it->second);
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    }
89

	
90
    _prob->addRow(values.size(), &indexes.front(), &values.front(), l, u);
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    return _prob->numberRows() - 1;
92
  }
93

	
81 94

	
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@@ -77,2 +77,3 @@
77 77
    virtual int _addRow();
78
    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
78 79

	
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... ...
@@ -113,2 +113,35 @@
113 113

	
114
  int CplexBase::_addRow(Value lb, ExprIterator b, 
115
                         ExprIterator e, Value ub) {
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    int i = CPXgetnumrows(cplexEnv(), _prob);
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    if (lb == -INF) {
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      const char s = 'L';
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      CPXnewrows(cplexEnv(), _prob, 1, &ub, &s, 0, 0);
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    } else if (ub == INF) {
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      const char s = 'G';
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      CPXnewrows(cplexEnv(), _prob, 1, &lb, &s, 0, 0);
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    } else if (lb == ub){
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      const char s = 'E';
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      CPXnewrows(cplexEnv(), _prob, 1, &lb, &s, 0, 0);
126
    } else {
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      const char s = 'R';
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      double len = ub - lb;
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      CPXnewrows(cplexEnv(), _prob, 1, &lb, &s, &len, 0);
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    }
131

	
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    std::vector<int> indices;
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    std::vector<int> rowlist;
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    std::vector<Value> values;
135

	
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    for(ExprIterator it=b; it!=e; ++it) {
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      indices.push_back(it->first);
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      values.push_back(it->second);
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      rowlist.push_back(i);
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    }
141

	
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    CPXchgcoeflist(cplexEnv(), _prob, values.size(),
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                   &rowlist.front(), &indices.front(), &values.front());
144

	
145
    return i;
146
  }
114 147

	
Show white space 2 line context
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@@ -95,2 +95,3 @@
95 95
    virtual int _addRow();
96
    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
96 97

	
Show white space 2 line context
... ...
@@ -61,2 +61,38 @@
61 61

	
62
  int GlpkBase::_addRow(Value lo, ExprIterator b, 
63
                        ExprIterator e, Value up) {
64
    int i = glp_add_rows(lp, 1);
65

	
66
    if (lo == -INF) {
67
      if (up == INF) {
68
        glp_set_row_bnds(lp, i, GLP_FR, lo, up);
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      } else {
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        glp_set_row_bnds(lp, i, GLP_UP, lo, up);
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      }    
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    } else {
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      if (up == INF) {
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        glp_set_row_bnds(lp, i, GLP_LO, lo, up);
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      } else if (lo != up) {        
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        glp_set_row_bnds(lp, i, GLP_DB, lo, up);
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      } else {
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        glp_set_row_bnds(lp, i, GLP_FX, lo, up);
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      }
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    }
81

	
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    std::vector<int> indexes;
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    std::vector<Value> values;
84

	
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    indexes.push_back(0);
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    values.push_back(0);
87

	
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    for(ExprIterator it = b; it != e; ++it) {
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      indexes.push_back(it->first);
90
      values.push_back(it->second);
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    }
92

	
93
    glp_set_mat_row(lp, i, values.size() - 1,
94
                    &indexes.front(), &values.front());
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    return i;
96
  }
97

	
62 98
  void GlpkBase::_eraseCol(int i) {
Show white space 2 line context
... ...
@@ -56,2 +56,3 @@
56 56
    virtual int _addRow();
57
    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
57 58

	
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... ...
@@ -945,2 +945,10 @@
945 945

	
946
    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u) {
947
      int row = _addRow();
948
      _setRowCoeffs(row, b, e);
949
      _setRowLowerBound(row, l);
950
      _setRowUpperBound(row, u);
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      return row;
952
    }
953

	
946 954
    virtual void _eraseCol(int col) = 0;
... ...
@@ -1209,4 +1217,6 @@
1209 1217
    Row addRow(Value l,const Expr &e, Value u) {
1210
      Row r=addRow();
1211
      row(r,l,e,u);
1218
      Row r;
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      e.simplify();
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      r._id = _addRowId(_addRow(l - *e, ExprIterator(e.comps.begin(), cols),
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                                ExprIterator(e.comps.end(), cols), u - *e));
1212 1222
      return r;
... ...
@@ -1219,4 +1229,8 @@
1219 1229
    Row addRow(const Constr &c) {
1220
      Row r=addRow();
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      row(r,c);
1230
      Row r;
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      c.expr().simplify();
1232
      r._id = _addRowId(_addRow(c.lowerBounded()?c.lowerBound():-INF, 
1233
                                ExprIterator(c.expr().comps.begin(), cols),
1234
                                ExprIterator(c.expr().comps.end(), cols),
1235
                                c.upperBounded()?c.upperBound():INF));
1222 1236
      return r;
Show white space 2 line context
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@@ -34,2 +34,7 @@
34 34

	
35
  int SkeletonSolverBase::_addRow(Value, ExprIterator, ExprIterator, Value)
36
  {
37
    return ++row_num;
38
  }
39

	
35 40
  void SkeletonSolverBase::_eraseCol(int) {}
Show white space 2 line context
... ...
@@ -47,2 +47,4 @@
47 47
    /// \e
48
    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
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    /// \e
48 50
    virtual void _eraseCol(int i);
Show white space 2 line context
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@@ -93,2 +93,15 @@
93 93

	
94
  int SoplexLp::_addRow(Value l, ExprIterator b, ExprIterator e, Value u) {
95
    soplex::DSVector v;
96
    for (ExprIterator it = b; it != e; ++it) {
97
      v.add(it->first, it->second);
98
    }
99
    soplex::LPRow r(l, v, u);
100
    soplex->addRow(r);
101

	
102
    _row_names.push_back(std::string());
103

	
104
    return soplex->nRows() - 1;
105
  }
106

	
94 107

	
Show white space 2 line context
... ...
@@ -86,2 +86,3 @@
86 86
    virtual int _addRow();
87
    virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
87 88

	
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