HouseholderQR_LAPACKE.h
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27  ********************************************************************************
28  * Content : Eigen bindings to LAPACKe
29  * Householder QR decomposition of a matrix w/o pivoting based on
30  * LAPACKE_?geqrf function.
31  ********************************************************************************
32 */
33 
34 #ifndef EIGEN_QR_LAPACKE_H
35 #define EIGEN_QR_LAPACKE_H
36 
37 namespace Eigen {
38 
39 namespace internal {
40 
43 #define EIGEN_LAPACKE_QR_NOPIV(EIGTYPE, LAPACKE_TYPE, LAPACKE_PREFIX) \
44 template<typename MatrixQR, typename HCoeffs> \
45 struct householder_qr_inplace_blocked<MatrixQR, HCoeffs, EIGTYPE, true> \
46 { \
47  static void run(MatrixQR& mat, HCoeffs& hCoeffs, Index = 32, \
48  typename MatrixQR::Scalar* = 0) \
49  { \
50  lapack_int m = (lapack_int) mat.rows(); \
51  lapack_int n = (lapack_int) mat.cols(); \
52  lapack_int lda = (lapack_int) mat.outerStride(); \
53  lapack_int matrix_order = (MatrixQR::IsRowMajor) ? LAPACK_ROW_MAJOR : LAPACK_COL_MAJOR; \
54  LAPACKE_##LAPACKE_PREFIX##geqrf( matrix_order, m, n, (LAPACKE_TYPE*)mat.data(), lda, (LAPACKE_TYPE*)hCoeffs.data()); \
55  hCoeffs.adjointInPlace(); \
56  } \
57 };
58 
59 EIGEN_LAPACKE_QR_NOPIV(double, double, d)
60 EIGEN_LAPACKE_QR_NOPIV(float, float, s)
63 
64 } // end namespace internal
65 
66 } // end namespace Eigen
67 
68 #endif // EIGEN_QR_LAPACKE_H
#define lapack_complex_float
Definition: lapacke.h:76
Scalar Scalar * c
Definition: benchVecAdd.cpp:17
Namespace containing all symbols from the Eigen library.
Definition: jet.h:637
std::complex< float > scomplex
Definition: MKL_support.h:126
std::complex< double > dcomplex
Definition: MKL_support.h:125
RealScalar s
#define EIGEN_LAPACKE_QR_NOPIV(EIGTYPE, LAPACKE_TYPE, LAPACKE_PREFIX)
#define lapack_complex_double
Definition: lapacke.h:92


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autogenerated on Tue Jul 4 2023 02:34:20