From a7cac104f11851592e88b5469acca329b39ea553 Mon Sep 17 00:00:00 2001
From: Oliver Sander <sander@igpm.rwth-aachen.de>
Date: Mon, 17 Mar 2014 17:56:37 +0000
Subject: [PATCH] Add default constructor and setProblem method
These are needed to use the CGStep as an acceleration step for
the TNNMG method.
[[Imported from SVN: r13067]]
---
dune/solvers/iterationsteps/cgstep.hh | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/dune/solvers/iterationsteps/cgstep.hh b/dune/solvers/iterationsteps/cgstep.hh
index 97f9e9be..12e9dbb7 100644
--- a/dune/solvers/iterationsteps/cgstep.hh
+++ b/dune/solvers/iterationsteps/cgstep.hh
@@ -12,6 +12,9 @@ namespace Dune {
class CGStep : public IterationStep<VectorType>
{
public:
+ CGStep()
+ {}
+
CGStep(const MatrixType& matrix,
VectorType& x,
const VectorType& rhs)
@@ -27,6 +30,14 @@ namespace Dune {
preconditioner_(&preconditioner)
{}
+ //! Set linear operator, solution and right hand side
+ virtual void setProblem(const MatrixType& mat, VectorType& x, const VectorType& rhs)
+ {
+ matrix_ = mat;
+ x_ = x;
+ r_ = rhs;
+ }
+
void check() const;
void preprocess();
void iterate();
--
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