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Add field m_maxIterations; break loop when this limit is exceeded.

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This commit is contained in:
Jitse Niesen
2010-06-02 17:31:02 +01:00
parent 9ff0d67156
commit 38d8352b7b
3 changed files with 42 additions and 5 deletions
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12
Eigen/src/Eigenvalues/ComplexSchur.h
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@@ -192,6 +192,12 @@ template<typename _MatrixType> class ComplexSchur
*/
ComplexSchur& compute(const MatrixType& matrix, bool computeU = true);
/** \brief Maximum number of iterations.
*
* Maximum number of iterations allowed for an eigenvalue to converge.
*/
static const int m_maxIterations = 30;
protected:
ComplexMatrixType m_matT, m_matU;
HessenbergDecomposition<MatrixType> m_hess;
@@ -374,9 +380,9 @@ void ComplexSchur<MatrixType>::reduceToTriangularForm(bool computeU)
// if iu is zero then we are done; the whole matrix is triangularized
if(iu==0) break;
// if we spent 30 iterations on the current element, we give up
// if we spent too many iterations on the current element, we give up
iter++;
if(iter >= 30) break;
if(iter >= m_maxIterations) break;
// find il, the top row of the active submatrix
il = iu-1;
@@ -406,7 +412,7 @@ void ComplexSchur<MatrixType>::reduceToTriangularForm(bool computeU)
}
}
if(iter >= 30)
if(iter >= m_maxIterations)
{
// FIXME : what to do when iter==MAXITER ??
// std::cerr << "MAXITER" << std::endl;