You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
522 lines
24 KiB
522 lines
24 KiB
// |
|
// Copyright (c) 2002--2010 |
|
// Toon Knapen, Karl Meerbergen, Kresimir Fresl, |
|
// Thomas Klimpel and Rutger ter Borg |
|
// |
|
// Distributed under the Boost Software License, Version 1.0. |
|
// (See accompanying file LICENSE_1_0.txt or copy at |
|
// http://www.boost.org/LICENSE_1_0.txt) |
|
// |
|
// THIS FILE IS AUTOMATICALLY GENERATED |
|
// PLEASE DO NOT EDIT! |
|
// |
|
|
|
#ifndef BOOST_NUMERIC_BINDINGS_LAPACK_DRIVER_HEGVX_HPP |
|
#define BOOST_NUMERIC_BINDINGS_LAPACK_DRIVER_HEGVX_HPP |
|
|
|
#include <boost/assert.hpp> |
|
#include <boost/numeric/bindings/begin.hpp> |
|
#include <boost/numeric/bindings/detail/array.hpp> |
|
#include <boost/numeric/bindings/is_column_major.hpp> |
|
#include <boost/numeric/bindings/is_complex.hpp> |
|
#include <boost/numeric/bindings/is_mutable.hpp> |
|
#include <boost/numeric/bindings/is_real.hpp> |
|
#include <boost/numeric/bindings/lapack/workspace.hpp> |
|
#include <boost/numeric/bindings/remove_imaginary.hpp> |
|
#include <boost/numeric/bindings/size.hpp> |
|
#include <boost/numeric/bindings/stride.hpp> |
|
#include <boost/numeric/bindings/traits/detail/utils.hpp> |
|
#include <boost/numeric/bindings/uplo_tag.hpp> |
|
#include <boost/numeric/bindings/value_type.hpp> |
|
#include <boost/static_assert.hpp> |
|
#include <boost/type_traits/is_same.hpp> |
|
#include <boost/type_traits/remove_const.hpp> |
|
#include <boost/utility/enable_if.hpp> |
|
|
|
// |
|
// The LAPACK-backend for hegvx is the netlib-compatible backend. |
|
// |
|
#include <boost/numeric/bindings/lapack/detail/lapack.h> |
|
#include <boost/numeric/bindings/lapack/detail/lapack_option.hpp> |
|
|
|
namespace boost { |
|
namespace numeric { |
|
namespace bindings { |
|
namespace lapack { |
|
|
|
// |
|
// The detail namespace contains value-type-overloaded functions that |
|
// dispatch to the appropriate back-end LAPACK-routine. |
|
// |
|
namespace detail { |
|
|
|
// |
|
// Overloaded function for dispatching to |
|
// * netlib-compatible LAPACK backend (the default), and |
|
// * float value-type. |
|
// |
|
template< typename UpLo > |
|
inline std::ptrdiff_t hegvx( const fortran_int_t itype, const char jobz, |
|
const char range, const UpLo, const fortran_int_t n, float* a, |
|
const fortran_int_t lda, float* b, const fortran_int_t ldb, |
|
const float vl, const float vu, const fortran_int_t il, |
|
const fortran_int_t iu, const float abstol, fortran_int_t& m, |
|
float* w, float* z, const fortran_int_t ldz, float* work, |
|
const fortran_int_t lwork, fortran_int_t* iwork, |
|
fortran_int_t* ifail ) { |
|
fortran_int_t info(0); |
|
LAPACK_SSYGVX( &itype, &jobz, &range, &lapack_option< UpLo >::value, &n, |
|
a, &lda, b, &ldb, &vl, &vu, &il, &iu, &abstol, &m, w, z, &ldz, |
|
work, &lwork, iwork, ifail, &info ); |
|
return info; |
|
} |
|
|
|
// |
|
// Overloaded function for dispatching to |
|
// * netlib-compatible LAPACK backend (the default), and |
|
// * double value-type. |
|
// |
|
template< typename UpLo > |
|
inline std::ptrdiff_t hegvx( const fortran_int_t itype, const char jobz, |
|
const char range, const UpLo, const fortran_int_t n, double* a, |
|
const fortran_int_t lda, double* b, const fortran_int_t ldb, |
|
const double vl, const double vu, const fortran_int_t il, |
|
const fortran_int_t iu, const double abstol, fortran_int_t& m, |
|
double* w, double* z, const fortran_int_t ldz, double* work, |
|
const fortran_int_t lwork, fortran_int_t* iwork, |
|
fortran_int_t* ifail ) { |
|
fortran_int_t info(0); |
|
LAPACK_DSYGVX( &itype, &jobz, &range, &lapack_option< UpLo >::value, &n, |
|
a, &lda, b, &ldb, &vl, &vu, &il, &iu, &abstol, &m, w, z, &ldz, |
|
work, &lwork, iwork, ifail, &info ); |
|
return info; |
|
} |
|
|
|
// |
|
// Overloaded function for dispatching to |
|
// * netlib-compatible LAPACK backend (the default), and |
|
// * complex<float> value-type. |
|
// |
|
template< typename UpLo > |
|
inline std::ptrdiff_t hegvx( const fortran_int_t itype, const char jobz, |
|
const char range, const UpLo, const fortran_int_t n, |
|
std::complex<float>* a, const fortran_int_t lda, |
|
std::complex<float>* b, const fortran_int_t ldb, const float vl, |
|
const float vu, const fortran_int_t il, const fortran_int_t iu, |
|
const float abstol, fortran_int_t& m, float* w, |
|
std::complex<float>* z, const fortran_int_t ldz, |
|
std::complex<float>* work, const fortran_int_t lwork, float* rwork, |
|
fortran_int_t* iwork, fortran_int_t* ifail ) { |
|
fortran_int_t info(0); |
|
LAPACK_CHEGVX( &itype, &jobz, &range, &lapack_option< UpLo >::value, &n, |
|
a, &lda, b, &ldb, &vl, &vu, &il, &iu, &abstol, &m, w, z, &ldz, |
|
work, &lwork, rwork, iwork, ifail, &info ); |
|
return info; |
|
} |
|
|
|
// |
|
// Overloaded function for dispatching to |
|
// * netlib-compatible LAPACK backend (the default), and |
|
// * complex<double> value-type. |
|
// |
|
template< typename UpLo > |
|
inline std::ptrdiff_t hegvx( const fortran_int_t itype, const char jobz, |
|
const char range, const UpLo, const fortran_int_t n, |
|
std::complex<double>* a, const fortran_int_t lda, |
|
std::complex<double>* b, const fortran_int_t ldb, const double vl, |
|
const double vu, const fortran_int_t il, const fortran_int_t iu, |
|
const double abstol, fortran_int_t& m, double* w, |
|
std::complex<double>* z, const fortran_int_t ldz, |
|
std::complex<double>* work, const fortran_int_t lwork, double* rwork, |
|
fortran_int_t* iwork, fortran_int_t* ifail ) { |
|
fortran_int_t info(0); |
|
LAPACK_ZHEGVX( &itype, &jobz, &range, &lapack_option< UpLo >::value, &n, |
|
a, &lda, b, &ldb, &vl, &vu, &il, &iu, &abstol, &m, w, z, &ldz, |
|
work, &lwork, rwork, iwork, ifail, &info ); |
|
return info; |
|
} |
|
|
|
} // namespace detail |
|
|
|
// |
|
// Value-type based template class. Use this class if you need a type |
|
// for dispatching to hegvx. |
|
// |
|
template< typename Value, typename Enable = void > |
|
struct hegvx_impl {}; |
|
|
|
// |
|
// This implementation is enabled if Value is a real type. |
|
// |
|
template< typename Value > |
|
struct hegvx_impl< Value, typename boost::enable_if< is_real< Value > >::type > { |
|
|
|
typedef Value value_type; |
|
typedef typename remove_imaginary< Value >::type real_type; |
|
|
|
// |
|
// Static member function for user-defined workspaces, that |
|
// * Deduces the required arguments for dispatching to LAPACK, and |
|
// * Asserts that most arguments make sense. |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL, typename WORK, |
|
typename IWORK > |
|
static std::ptrdiff_t invoke( const fortran_int_t itype, |
|
const char jobz, const char range, MatrixA& a, MatrixB& b, |
|
const real_type vl, const real_type vu, |
|
const fortran_int_t il, const fortran_int_t iu, |
|
const real_type abstol, fortran_int_t& m, VectorW& w, |
|
MatrixZ& z, VectorIFAIL& ifail, detail::workspace2< WORK, |
|
IWORK > work ) { |
|
namespace bindings = ::boost::numeric::bindings; |
|
typedef typename result_of::uplo_tag< MatrixA >::type uplo; |
|
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixB >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixZ >::value) ); |
|
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
|
typename bindings::value_type< MatrixA >::type >::type, |
|
typename remove_const< typename bindings::value_type< |
|
MatrixB >::type >::type >::value) ); |
|
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
|
typename bindings::value_type< MatrixA >::type >::type, |
|
typename remove_const< typename bindings::value_type< |
|
VectorW >::type >::type >::value) ); |
|
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
|
typename bindings::value_type< MatrixA >::type >::type, |
|
typename remove_const< typename bindings::value_type< |
|
MatrixZ >::type >::type >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixA >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixB >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorW >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixZ >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorIFAIL >::value) ); |
|
BOOST_ASSERT( bindings::size(w) >= bindings::size_column(a) ); |
|
BOOST_ASSERT( bindings::size(work.select(fortran_int_t())) >= |
|
min_size_iwork( bindings::size_column(a) )); |
|
BOOST_ASSERT( bindings::size(work.select(real_type())) >= |
|
min_size_work( bindings::size_column(a) )); |
|
BOOST_ASSERT( bindings::size_column(a) >= 0 ); |
|
BOOST_ASSERT( bindings::size_minor(a) == 1 || |
|
bindings::stride_minor(a) == 1 ); |
|
BOOST_ASSERT( bindings::size_minor(b) == 1 || |
|
bindings::stride_minor(b) == 1 ); |
|
BOOST_ASSERT( bindings::size_minor(z) == 1 || |
|
bindings::stride_minor(z) == 1 ); |
|
BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1, |
|
bindings::size_column(a)) ); |
|
BOOST_ASSERT( bindings::stride_major(b) >= std::max< std::ptrdiff_t >(1, |
|
bindings::size_column(a)) ); |
|
BOOST_ASSERT( jobz == 'N' || jobz == 'V' ); |
|
BOOST_ASSERT( range == 'A' || range == 'V' || range == 'I' ); |
|
return detail::hegvx( itype, jobz, range, uplo(), |
|
bindings::size_column(a), bindings::begin_value(a), |
|
bindings::stride_major(a), bindings::begin_value(b), |
|
bindings::stride_major(b), vl, vu, il, iu, abstol, m, |
|
bindings::begin_value(w), bindings::begin_value(z), |
|
bindings::stride_major(z), |
|
bindings::begin_value(work.select(real_type())), |
|
bindings::size(work.select(real_type())), |
|
bindings::begin_value(work.select(fortran_int_t())), |
|
bindings::begin_value(ifail) ); |
|
} |
|
|
|
// |
|
// Static member function that |
|
// * Figures out the minimal workspace requirements, and passes |
|
// the results to the user-defined workspace overload of the |
|
// invoke static member function |
|
// * Enables the unblocked algorithm (BLAS level 2) |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL > |
|
static std::ptrdiff_t invoke( const fortran_int_t itype, |
|
const char jobz, const char range, MatrixA& a, MatrixB& b, |
|
const real_type vl, const real_type vu, |
|
const fortran_int_t il, const fortran_int_t iu, |
|
const real_type abstol, fortran_int_t& m, VectorW& w, |
|
MatrixZ& z, VectorIFAIL& ifail, minimal_workspace ) { |
|
namespace bindings = ::boost::numeric::bindings; |
|
typedef typename result_of::uplo_tag< MatrixA >::type uplo; |
|
bindings::detail::array< real_type > tmp_work( min_size_work( |
|
bindings::size_column(a) ) ); |
|
bindings::detail::array< fortran_int_t > tmp_iwork( |
|
min_size_iwork( bindings::size_column(a) ) ); |
|
return invoke( itype, jobz, range, a, b, vl, vu, il, iu, abstol, m, w, |
|
z, ifail, workspace( tmp_work, tmp_iwork ) ); |
|
} |
|
|
|
// |
|
// Static member function that |
|
// * Figures out the optimal workspace requirements, and passes |
|
// the results to the user-defined workspace overload of the |
|
// invoke static member |
|
// * Enables the blocked algorithm (BLAS level 3) |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL > |
|
static std::ptrdiff_t invoke( const fortran_int_t itype, |
|
const char jobz, const char range, MatrixA& a, MatrixB& b, |
|
const real_type vl, const real_type vu, |
|
const fortran_int_t il, const fortran_int_t iu, |
|
const real_type abstol, fortran_int_t& m, VectorW& w, |
|
MatrixZ& z, VectorIFAIL& ifail, optimal_workspace ) { |
|
namespace bindings = ::boost::numeric::bindings; |
|
typedef typename result_of::uplo_tag< MatrixA >::type uplo; |
|
real_type opt_size_work; |
|
bindings::detail::array< fortran_int_t > tmp_iwork( |
|
min_size_iwork( bindings::size_column(a) ) ); |
|
detail::hegvx( itype, jobz, range, uplo(), |
|
bindings::size_column(a), bindings::begin_value(a), |
|
bindings::stride_major(a), bindings::begin_value(b), |
|
bindings::stride_major(b), vl, vu, il, iu, abstol, m, |
|
bindings::begin_value(w), bindings::begin_value(z), |
|
bindings::stride_major(z), &opt_size_work, -1, |
|
bindings::begin_value(tmp_iwork), |
|
bindings::begin_value(ifail) ); |
|
bindings::detail::array< real_type > tmp_work( |
|
traits::detail::to_int( opt_size_work ) ); |
|
return invoke( itype, jobz, range, a, b, vl, vu, il, iu, abstol, m, w, |
|
z, ifail, workspace( tmp_work, tmp_iwork ) ); |
|
} |
|
|
|
// |
|
// Static member function that returns the minimum size of |
|
// workspace-array work. |
|
// |
|
static std::ptrdiff_t min_size_work( const std::ptrdiff_t n ) { |
|
return std::max< std::ptrdiff_t >(1,8*n); |
|
} |
|
|
|
// |
|
// Static member function that returns the minimum size of |
|
// workspace-array iwork. |
|
// |
|
static std::ptrdiff_t min_size_iwork( const std::ptrdiff_t n ) { |
|
return 5*n; |
|
} |
|
}; |
|
|
|
// |
|
// This implementation is enabled if Value is a complex type. |
|
// |
|
template< typename Value > |
|
struct hegvx_impl< Value, typename boost::enable_if< is_complex< Value > >::type > { |
|
|
|
typedef Value value_type; |
|
typedef typename remove_imaginary< Value >::type real_type; |
|
|
|
// |
|
// Static member function for user-defined workspaces, that |
|
// * Deduces the required arguments for dispatching to LAPACK, and |
|
// * Asserts that most arguments make sense. |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL, typename WORK, |
|
typename RWORK, typename IWORK > |
|
static std::ptrdiff_t invoke( const fortran_int_t itype, |
|
const char jobz, const char range, MatrixA& a, MatrixB& b, |
|
const real_type vl, const real_type vu, |
|
const fortran_int_t il, const fortran_int_t iu, |
|
const real_type abstol, fortran_int_t& m, VectorW& w, |
|
MatrixZ& z, VectorIFAIL& ifail, detail::workspace3< WORK, RWORK, |
|
IWORK > work ) { |
|
namespace bindings = ::boost::numeric::bindings; |
|
typedef typename result_of::uplo_tag< MatrixA >::type uplo; |
|
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixA >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixB >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixZ >::value) ); |
|
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
|
typename bindings::value_type< MatrixA >::type >::type, |
|
typename remove_const< typename bindings::value_type< |
|
MatrixB >::type >::type >::value) ); |
|
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const< |
|
typename bindings::value_type< MatrixA >::type >::type, |
|
typename remove_const< typename bindings::value_type< |
|
MatrixZ >::type >::type >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixA >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixB >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorW >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixZ >::value) ); |
|
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorIFAIL >::value) ); |
|
BOOST_ASSERT( bindings::size(w) >= bindings::size_column(a) ); |
|
BOOST_ASSERT( bindings::size(work.select(fortran_int_t())) >= |
|
min_size_iwork( bindings::size_column(a) )); |
|
BOOST_ASSERT( bindings::size(work.select(real_type())) >= |
|
min_size_rwork( bindings::size_column(a) )); |
|
BOOST_ASSERT( bindings::size(work.select(value_type())) >= |
|
min_size_work( bindings::size_column(a) )); |
|
BOOST_ASSERT( bindings::size_column(a) >= 0 ); |
|
BOOST_ASSERT( bindings::size_minor(a) == 1 || |
|
bindings::stride_minor(a) == 1 ); |
|
BOOST_ASSERT( bindings::size_minor(b) == 1 || |
|
bindings::stride_minor(b) == 1 ); |
|
BOOST_ASSERT( bindings::size_minor(z) == 1 || |
|
bindings::stride_minor(z) == 1 ); |
|
BOOST_ASSERT( bindings::stride_major(a) >= std::max< std::ptrdiff_t >(1, |
|
bindings::size_column(a)) ); |
|
BOOST_ASSERT( bindings::stride_major(b) >= std::max< std::ptrdiff_t >(1, |
|
bindings::size_column(a)) ); |
|
BOOST_ASSERT( jobz == 'N' || jobz == 'V' ); |
|
BOOST_ASSERT( range == 'A' || range == 'V' || range == 'I' ); |
|
return detail::hegvx( itype, jobz, range, uplo(), |
|
bindings::size_column(a), bindings::begin_value(a), |
|
bindings::stride_major(a), bindings::begin_value(b), |
|
bindings::stride_major(b), vl, vu, il, iu, abstol, m, |
|
bindings::begin_value(w), bindings::begin_value(z), |
|
bindings::stride_major(z), |
|
bindings::begin_value(work.select(value_type())), |
|
bindings::size(work.select(value_type())), |
|
bindings::begin_value(work.select(real_type())), |
|
bindings::begin_value(work.select(fortran_int_t())), |
|
bindings::begin_value(ifail) ); |
|
} |
|
|
|
// |
|
// Static member function that |
|
// * Figures out the minimal workspace requirements, and passes |
|
// the results to the user-defined workspace overload of the |
|
// invoke static member function |
|
// * Enables the unblocked algorithm (BLAS level 2) |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL > |
|
static std::ptrdiff_t invoke( const fortran_int_t itype, |
|
const char jobz, const char range, MatrixA& a, MatrixB& b, |
|
const real_type vl, const real_type vu, |
|
const fortran_int_t il, const fortran_int_t iu, |
|
const real_type abstol, fortran_int_t& m, VectorW& w, |
|
MatrixZ& z, VectorIFAIL& ifail, minimal_workspace ) { |
|
namespace bindings = ::boost::numeric::bindings; |
|
typedef typename result_of::uplo_tag< MatrixA >::type uplo; |
|
bindings::detail::array< value_type > tmp_work( min_size_work( |
|
bindings::size_column(a) ) ); |
|
bindings::detail::array< real_type > tmp_rwork( min_size_rwork( |
|
bindings::size_column(a) ) ); |
|
bindings::detail::array< fortran_int_t > tmp_iwork( |
|
min_size_iwork( bindings::size_column(a) ) ); |
|
return invoke( itype, jobz, range, a, b, vl, vu, il, iu, abstol, m, w, |
|
z, ifail, workspace( tmp_work, tmp_rwork, tmp_iwork ) ); |
|
} |
|
|
|
// |
|
// Static member function that |
|
// * Figures out the optimal workspace requirements, and passes |
|
// the results to the user-defined workspace overload of the |
|
// invoke static member |
|
// * Enables the blocked algorithm (BLAS level 3) |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL > |
|
static std::ptrdiff_t invoke( const fortran_int_t itype, |
|
const char jobz, const char range, MatrixA& a, MatrixB& b, |
|
const real_type vl, const real_type vu, |
|
const fortran_int_t il, const fortran_int_t iu, |
|
const real_type abstol, fortran_int_t& m, VectorW& w, |
|
MatrixZ& z, VectorIFAIL& ifail, optimal_workspace ) { |
|
namespace bindings = ::boost::numeric::bindings; |
|
typedef typename result_of::uplo_tag< MatrixA >::type uplo; |
|
value_type opt_size_work; |
|
bindings::detail::array< real_type > tmp_rwork( min_size_rwork( |
|
bindings::size_column(a) ) ); |
|
bindings::detail::array< fortran_int_t > tmp_iwork( |
|
min_size_iwork( bindings::size_column(a) ) ); |
|
detail::hegvx( itype, jobz, range, uplo(), |
|
bindings::size_column(a), bindings::begin_value(a), |
|
bindings::stride_major(a), bindings::begin_value(b), |
|
bindings::stride_major(b), vl, vu, il, iu, abstol, m, |
|
bindings::begin_value(w), bindings::begin_value(z), |
|
bindings::stride_major(z), &opt_size_work, -1, |
|
bindings::begin_value(tmp_rwork), |
|
bindings::begin_value(tmp_iwork), |
|
bindings::begin_value(ifail) ); |
|
bindings::detail::array< value_type > tmp_work( |
|
traits::detail::to_int( opt_size_work ) ); |
|
return invoke( itype, jobz, range, a, b, vl, vu, il, iu, abstol, m, w, |
|
z, ifail, workspace( tmp_work, tmp_rwork, tmp_iwork ) ); |
|
} |
|
|
|
// |
|
// Static member function that returns the minimum size of |
|
// workspace-array work. |
|
// |
|
static std::ptrdiff_t min_size_work( const std::ptrdiff_t n ) { |
|
return std::max< std::ptrdiff_t >(1,2*n); |
|
} |
|
|
|
// |
|
// Static member function that returns the minimum size of |
|
// workspace-array rwork. |
|
// |
|
static std::ptrdiff_t min_size_rwork( const std::ptrdiff_t n ) { |
|
return 7*n; |
|
} |
|
|
|
// |
|
// Static member function that returns the minimum size of |
|
// workspace-array iwork. |
|
// |
|
static std::ptrdiff_t min_size_iwork( const std::ptrdiff_t n ) { |
|
return 5*n; |
|
} |
|
}; |
|
|
|
|
|
// |
|
// Functions for direct use. These functions are overloaded for temporaries, |
|
// so that wrapped types can still be passed and used for write-access. In |
|
// addition, if applicable, they are overloaded for user-defined workspaces. |
|
// Calls to these functions are passed to the hegvx_impl classes. In the |
|
// documentation, most overloads are collapsed to avoid a large number of |
|
// prototypes which are very similar. |
|
// |
|
|
|
// |
|
// Overloaded function for hegvx. Its overload differs for |
|
// * User-defined workspace |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL, typename Workspace > |
|
inline typename boost::enable_if< detail::is_workspace< Workspace >, |
|
std::ptrdiff_t >::type |
|
hegvx( const fortran_int_t itype, const char jobz, const char range, |
|
MatrixA& a, MatrixB& b, const typename remove_imaginary< |
|
typename bindings::value_type< MatrixA >::type >::type vl, |
|
const typename remove_imaginary< typename bindings::value_type< |
|
MatrixA >::type >::type vu, const fortran_int_t il, |
|
const fortran_int_t iu, const typename remove_imaginary< |
|
typename bindings::value_type< MatrixA >::type >::type abstol, |
|
fortran_int_t& m, VectorW& w, MatrixZ& z, VectorIFAIL& ifail, |
|
Workspace work ) { |
|
return hegvx_impl< typename bindings::value_type< |
|
MatrixA >::type >::invoke( itype, jobz, range, a, b, vl, vu, il, |
|
iu, abstol, m, w, z, ifail, work ); |
|
} |
|
|
|
// |
|
// Overloaded function for hegvx. Its overload differs for |
|
// * Default workspace-type (optimal) |
|
// |
|
template< typename MatrixA, typename MatrixB, typename VectorW, |
|
typename MatrixZ, typename VectorIFAIL > |
|
inline typename boost::disable_if< detail::is_workspace< VectorIFAIL >, |
|
std::ptrdiff_t >::type |
|
hegvx( const fortran_int_t itype, const char jobz, const char range, |
|
MatrixA& a, MatrixB& b, const typename remove_imaginary< |
|
typename bindings::value_type< MatrixA >::type >::type vl, |
|
const typename remove_imaginary< typename bindings::value_type< |
|
MatrixA >::type >::type vu, const fortran_int_t il, |
|
const fortran_int_t iu, const typename remove_imaginary< |
|
typename bindings::value_type< MatrixA >::type >::type abstol, |
|
fortran_int_t& m, VectorW& w, MatrixZ& z, VectorIFAIL& ifail ) { |
|
return hegvx_impl< typename bindings::value_type< |
|
MatrixA >::type >::invoke( itype, jobz, range, a, b, vl, vu, il, |
|
iu, abstol, m, w, z, ifail, optimal_workspace() ); |
|
} |
|
|
|
} // namespace lapack |
|
} // namespace bindings |
|
} // namespace numeric |
|
} // namespace boost |
|
|
|
#endif
|
|
|