ComplexSchur_LAPACKE.h
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27  ********************************************************************************
28  * Content : Eigen bindings to LAPACKe
29  * Complex Schur needed to complex unsymmetrical eigenvalues/eigenvectors.
30  ********************************************************************************
31 */
32 
33 #ifndef EIGEN_COMPLEX_SCHUR_LAPACKE_H
34 #define EIGEN_COMPLEX_SCHUR_LAPACKE_H
35 
36 namespace Eigen {
37 
40 #define EIGEN_LAPACKE_SCHUR_COMPLEX(EIGTYPE, LAPACKE_TYPE, LAPACKE_PREFIX, LAPACKE_PREFIX_U, EIGCOLROW, LAPACKE_COLROW) \
41 template<> template<typename InputType> inline \
42 ComplexSchur<Matrix<EIGTYPE, Dynamic, Dynamic, EIGCOLROW> >& \
43 ComplexSchur<Matrix<EIGTYPE, Dynamic, Dynamic, EIGCOLROW> >::compute(const EigenBase<InputType>& matrix, bool computeU) \
44 { \
45  typedef Matrix<EIGTYPE, Dynamic, Dynamic, EIGCOLROW> MatrixType; \
46  typedef MatrixType::RealScalar RealScalar; \
47  typedef std::complex<RealScalar> ComplexScalar; \
48 \
49  eigen_assert(matrix.cols() == matrix.rows()); \
50 \
51  m_matUisUptodate = false; \
52  if(matrix.cols() == 1) \
53  { \
54  m_matT = matrix.derived().template cast<ComplexScalar>(); \
55  if(computeU) m_matU = ComplexMatrixType::Identity(1,1); \
56  m_info = Success; \
57  m_isInitialized = true; \
58  m_matUisUptodate = computeU; \
59  return *this; \
60  } \
61  lapack_int n = internal::convert_index<lapack_int>(matrix.cols()), sdim, info; \
62  lapack_int matrix_order = LAPACKE_COLROW; \
63  char jobvs, sort='N'; \
64  LAPACK_##LAPACKE_PREFIX_U##_SELECT1 select = 0; \
65  jobvs = (computeU) ? 'V' : 'N'; \
66  m_matU.resize(n, n); \
67  lapack_int ldvs = internal::convert_index<lapack_int>(m_matU.outerStride()); \
68  m_matT = matrix; \
69  lapack_int lda = internal::convert_index<lapack_int>(m_matT.outerStride()); \
70  Matrix<EIGTYPE, Dynamic, Dynamic> w; \
71  w.resize(n, 1);\
72  info = LAPACKE_##LAPACKE_PREFIX##gees( matrix_order, jobvs, sort, select, n, (LAPACKE_TYPE*)m_matT.data(), lda, &sdim, (LAPACKE_TYPE*)w.data(), (LAPACKE_TYPE*)m_matU.data(), ldvs ); \
73  if(info == 0) \
74  m_info = Success; \
75  else \
76  m_info = NoConvergence; \
77 \
78  m_isInitialized = true; \
79  m_matUisUptodate = computeU; \
80  return *this; \
81 \
82 }
83 
87 EIGEN_LAPACKE_SCHUR_COMPLEX(scomplex, lapack_complex_float, c, C, RowMajor, LAPACK_ROW_MAJOR)
88 
89 } // end namespace Eigen
90 
91 #endif // EIGEN_COMPLEX_SCHUR_LAPACKE_H
#define lapack_complex_float
Definition: lapacke.h:80
#define LAPACK_COL_MAJOR
Definition: lapacke.h:122
Definition: LDLT.h:16
std::complex< float > scomplex
Definition: MKL_support.h:114
std::complex< double > dcomplex
Definition: MKL_support.h:113
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:121
#define lapack_complex_double
Definition: lapacke.h:96
#define EIGEN_LAPACKE_SCHUR_COMPLEX(EIGTYPE, LAPACKE_TYPE, LAPACKE_PREFIX, LAPACKE_PREFIX_U, EIGCOLROW, LAPACKE_COLROW)


hebiros
Author(s): Xavier Artache , Matthew Tesch
autogenerated on Thu Sep 3 2020 04:08:04