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EpetraExt_Reindex_MultiVector.cpp
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4// EpetraExt: Epetra Extended - Linear Algebra Services Package
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41
43
44#include <vector>
45
46#include <Epetra_Map.h>
47#include <Epetra_MultiVector.h>
48
49namespace EpetraExt {
50
53{
54 if( newObj_ ) delete newObj_;
55}
56
59operator()( OriginalTypeRef orig )
60{
61 origObj_ = &orig;
62
63 //test std::map, must have same number of local and global elements as original row std::map
64 assert( orig.Map().NumMyElements() == NewRowMap_.NumMyElements() );
65
66 std::vector<double*> MyValues(1);
67 int MyLDA;
68 int NumVectors = orig.NumVectors();
69 orig.ExtractView( &MyValues[0], &MyLDA );
70
71 Epetra_MultiVector * NewMV = new Epetra_MultiVector( View, NewRowMap_, MyValues[0], MyLDA, NumVectors );
72
73 newObj_ = NewMV;
74
75 return *NewMV;
76}
77
79MultiVector_Reindex::transform(OriginalTypeRef orig)
80{
81 //test std::map, must have same number of local and global elements as original row std::map
82 assert( orig.Map().NumMyElements() == NewRowMap_.NumMyElements() );
83
84 std::vector<double*> MyValues(1);
85 int MyLDA;
86 int NumVectors = orig.NumVectors();
87 orig.ExtractView( &MyValues[0], &MyLDA );
88
89 return Teuchos::rcp(new Epetra_MultiVector( View, NewRowMap_, MyValues[0], MyLDA, NumVectors ));
90}
91
92} // namespace EpetraExt
93
View
NewTypeRef operator()(OriginalTypeRef orig)
Constructs a "reindexed" view of the original using the given NewRowMap.
NewTypeRCP transform(OriginalTypeRef orig)
int NumMyElements() const
EpetraExt::BlockCrsMatrix: A class for constructing a distributed block matrix.