43#include "Ifpack_OverlapSolveObject.h"
44#include "Epetra_Comm.h"
45#include "Epetra_Map.h"
46#include "Epetra_CrsGraph.h"
47#include "Epetra_CrsMatrix.h"
48#include "Epetra_Vector.h"
49#include "Epetra_MultiVector.h"
50#include "Epetra_Flops.h"
69 : Label_(Source.Label_),
71 UseLTrans_(Source.UseLTrans_),
74 UseUTrans_(Source.UseUTrans_),
75 UseTranspose_(Source.UseTranspose_),
77 Condest_(Source.Condest_),
78 OverlapMode_(Source.OverlapMode_)
95 EPETRA_CHK_ERR(SetupXY(Trans, X, Y, X1, Y1));
99 bool UnitDiagonal =
true;
103 EPETRA_CHK_ERR(L_->
Solve(Lower, Trans, UnitDiagonal, *X1, *Y1));
104 EPETRA_CHK_ERR(Y1->
Multiply(1.0, *D_, *Y1, 0.0));
105 EPETRA_CHK_ERR(U_->
Solve(Upper, Trans, UnitDiagonal, *Y1, *Y1));
109 EPETRA_CHK_ERR(U_->
Solve(Upper, Trans, UnitDiagonal, *X1, *Y1));
110 EPETRA_CHK_ERR(Y1->
Multiply(1.0, *D_, *Y1, 0.0));
111 EPETRA_CHK_ERR(L_->
Solve(Lower, Trans, UnitDiagonal, *Y1, *Y1));
127 EPETRA_CHK_ERR(SetupXY(Trans, X, Y, X1, Y1));
130 EPETRA_CHK_ERR(U_->
Multiply(Trans, *X1, *Y1));
131 EPETRA_CHK_ERR(Y1->
Update(1.0, *X1, 1.0));
134 EPETRA_CHK_ERR(L_->
Multiply(Trans, Y1temp, *Y1));
135 EPETRA_CHK_ERR(Y1->
Update(1.0, Y1temp, 1.0));
140 EPETRA_CHK_ERR(L_->
Multiply(Trans, *X1, *Y1));
141 EPETRA_CHK_ERR(Y1->
Update(1.0, *X1, 1.0));
144 EPETRA_CHK_ERR(U_->
Multiply(Trans, Y1temp, *Y1));
145 EPETRA_CHK_ERR(Y1->
Update(1.0, Y1temp, 1.0));
151int Ifpack_OverlapSolveObject::SetupXY(
bool Trans,
168 ConditionNumberEstimate = Condest_;
176 EPETRA_CHK_ERR(
Solve(Trans, Ones, OnesResult));
177 EPETRA_CHK_ERR(OnesResult.
Abs(OnesResult));
178 EPETRA_CHK_ERR(OnesResult.
MaxValue(&ConditionNumberEstimate));
179 Condest_ = ConditionNumberEstimate;
const Epetra_Export * Exporter() const
int Solve(bool Upper, bool Trans, bool UnitDiagonal, const Epetra_Vector &x, Epetra_Vector &y) const
const Epetra_Map & RangeMap() const
const Epetra_Map & DomainMap() const
const Epetra_Import * Importer() const
int Multiply(bool TransA, const Epetra_Vector &x, Epetra_Vector &y) const
int Export(const Epetra_SrcDistObject &A, const Epetra_Import &Importer, Epetra_CombineMode CombineMode, const Epetra_OffsetIndex *Indexor=0)
int Abs(const Epetra_MultiVector &A)
int Multiply(char TransA, char TransB, double ScalarAB, const Epetra_MultiVector &A, const Epetra_MultiVector &B, double ScalarThis)
int Update(double ScalarA, const Epetra_MultiVector &A, double ScalarThis)
int MaxValue(double *Result) const
int PutScalar(double ScalarConstant)
int ReciprocalMultiply(double ScalarAB, const Epetra_MultiVector &A, const Epetra_MultiVector &B, double ScalarThis)
Ifpack_OverlapSolveObject: Provides Overlapped Forward/back solve services for Ifpack.
Ifpack_OverlapSolveObject(char *Label, const Epetra_Comm &Comm)
Constructor.
int Solve(bool Trans, const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
Returns the result of a Ifpack_CrsIlut forward/back solve on a Epetra_MultiVector X in Y (works for E...
int Condest(bool Trans, double &ConditionNumberEstimate) const
Returns the maximum over all the condition number estimate for each local ILU set of factors.
virtual ~Ifpack_OverlapSolveObject()
Ifpack_OverlapSolveObject Destructor.
int Multiply(bool Trans, const Epetra_MultiVector &X, Epetra_MultiVector &Y) const
Returns the result of multiplying U, D and L in that order on an Epetra_MultiVector X in Y.