72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
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/*
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Copyright (c) 2011, Intel Corporation. All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of Intel Corporation nor the names of its contributors may
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be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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********************************************************************************
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* Content : Eigen bindings to Intel(R) MKL
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* Householder QR decomposition of a matrix w/o pivoting based on
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* LAPACKE_?geqrf function.
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********************************************************************************
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*/
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#ifndef EIGEN_QR_MKL_H
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#define EIGEN_QR_MKL_H
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#include "../Core/util/MKL_support.h"
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namespace Eigen {
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namespace internal {
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/** \internal Specialization for the data types supported by MKL */
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#define EIGEN_MKL_QR_NOPIV(EIGTYPE, MKLTYPE, MKLPREFIX) \
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template<typename MatrixQR, typename HCoeffs> \
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struct householder_qr_inplace_blocked<MatrixQR, HCoeffs, EIGTYPE, true> \
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{ \
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static void run(MatrixQR& mat, HCoeffs& hCoeffs, \
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typename MatrixQR::Index = 32, \
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typename MatrixQR::Scalar* = 0) \
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{ \
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lapack_int m = (lapack_int) mat.rows(); \
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lapack_int n = (lapack_int) mat.cols(); \
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lapack_int lda = (lapack_int) mat.outerStride(); \
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lapack_int matrix_order = (MatrixQR::IsRowMajor) ? LAPACK_ROW_MAJOR : LAPACK_COL_MAJOR; \
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LAPACKE_##MKLPREFIX##geqrf( matrix_order, m, n, (MKLTYPE*)mat.data(), lda, (MKLTYPE*)hCoeffs.data()); \
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hCoeffs.adjointInPlace(); \
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} \
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};
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EIGEN_MKL_QR_NOPIV(double, double, d)
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EIGEN_MKL_QR_NOPIV(float, float, s)
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EIGEN_MKL_QR_NOPIV(dcomplex, MKL_Complex16, z)
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EIGEN_MKL_QR_NOPIV(scomplex, MKL_Complex8, c)
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} // end namespace internal
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} // end namespace Eigen
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#endif // EIGEN_QR_MKL_H
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