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EpetraExt_Reindex_LinearProblem.cpp
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41 
43 
46 
47 #include <Epetra_LinearProblem.h>
48 #include <Epetra_CrsMatrix.h>
49 #include <Epetra_MultiVector.h>
50 #include <Epetra_Map.h>
51 
52 namespace EpetraExt {
53 
56 {
57  if( newObj_ ) delete newObj_;
58 
59  if( MatTrans_ ) delete MatTrans_;
60  if( LHSTrans_ ) delete LHSTrans_;
61  if( RHSTrans_ ) delete RHSTrans_;
62 
63  if( NewRowMapOwned_ ) delete NewRowMap_;
64 }
65 
69 {
70  Epetra_CrsMatrix * OldMatrix = dynamic_cast<Epetra_CrsMatrix*>( orig.GetMatrix() );
71  Epetra_MultiVector * OldRHS = orig.GetRHS();
72  Epetra_MultiVector * OldLHS = orig.GetLHS();
73  const Epetra_BlockMap & OldRowMap = OldMatrix->Map();
74 
75  //If new map not passed in create one with lex ordering
76  if( !NewRowMap_ )
77  {
78  int NumMyElements = OldRowMap.NumMyElements();
79 
80 #ifndef EPETRA_NO_32BIT_GLOBAL_INDICES
81  if(OldRowMap.GlobalIndicesInt()) {
82  int NumGlobalElements = OldRowMap.NumGlobalElements();
83  NewRowMap_ = new Epetra_Map( NumGlobalElements, NumMyElements, 0, OldRowMap.Comm() );
84  }
85  else
86 #endif
87 #ifndef EPETRA_NO_64BIT_GLOBAL_INDICES
88  if(OldRowMap.GlobalIndicesLongLong()) {
89  long long NumGlobalElements = OldRowMap.NumGlobalElements64();
90  NewRowMap_ = new Epetra_Map( NumGlobalElements, NumMyElements, 0LL, OldRowMap.Comm() );
91  }
92  else
93 #endif
94  throw "LinearProblem_Reindex::operator(): GlobalIndices type unknown for OldRowMap";
95 
96  NewRowMapOwned_ = true;
97  }
98 
102 
103  Epetra_CrsMatrix * NewMatrix = &((*MatTrans_)( *OldMatrix ));
104  Epetra_MultiVector * NewLHS = &((*LHSTrans_)( *OldLHS ));
105  Epetra_MultiVector * NewRHS = &((*RHSTrans_)( *OldRHS ));
106 
107  newObj_ = new Epetra_LinearProblem( NewMatrix, NewLHS, NewRHS );
108 
109  return *newObj_;
110 }
111 
112 } //namespace EpetraExt
113 
int NumGlobalElements() const
bool GlobalIndicesLongLong() const
long long NumGlobalElements64() const
bool GlobalIndicesInt() const
int NumMyElements() const
const Epetra_Comm & Comm() const
NewTypeRef operator()(OriginalTypeRef orig)
Constructs a new view the original LP, &quot;reindexed&quot; using the given NewRowMap.
Given an Epetra_CrsMatrix, a &quot;reindexed&quot; version is returned based on the new row map...
Given an input Epetra_MultiVector, a &quot;reindexed&quot; view is returned.
const Epetra_BlockMap & Map() const