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Timed-Altarica-To-Fiacre-Tr…/sdk/boost/numeric/bindings/lapack/computational/hsein.hpp
Pierre Gaufillet 18eb3f6047 Initial commit.
2018-12-06 16:01:56 +01:00

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//
// 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_COMPUTATIONAL_HSEIN_HPP
#define BOOST_NUMERIC_BINDINGS_LAPACK_COMPUTATIONAL_HSEIN_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/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 hsein 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 Side >
inline std::ptrdiff_t hsein( const Side, const char eigsrc, const char initv,
fortran_bool_t* select, const fortran_int_t n, const float* h,
const fortran_int_t ldh, float* wr, const float* wi, float* vl,
const fortran_int_t ldvl, float* vr, const fortran_int_t ldvr,
const fortran_int_t mm, fortran_int_t& m, float* work,
fortran_int_t* ifaill, fortran_int_t* ifailr ) {
fortran_int_t info(0);
LAPACK_SHSEIN( &lapack_option< Side >::value, &eigsrc, &initv, select, &n,
h, &ldh, wr, wi, vl, &ldvl, vr, &ldvr, &mm, &m, work, ifaill,
ifailr, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * double value-type.
//
template< typename Side >
inline std::ptrdiff_t hsein( const Side, const char eigsrc, const char initv,
fortran_bool_t* select, const fortran_int_t n, const double* h,
const fortran_int_t ldh, double* wr, const double* wi, double* vl,
const fortran_int_t ldvl, double* vr, const fortran_int_t ldvr,
const fortran_int_t mm, fortran_int_t& m, double* work,
fortran_int_t* ifaill, fortran_int_t* ifailr ) {
fortran_int_t info(0);
LAPACK_DHSEIN( &lapack_option< Side >::value, &eigsrc, &initv, select, &n,
h, &ldh, wr, wi, vl, &ldvl, vr, &ldvr, &mm, &m, work, ifaill,
ifailr, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<float> value-type.
//
template< typename Side >
inline std::ptrdiff_t hsein( const Side, const char eigsrc, const char initv,
const fortran_bool_t* select, const fortran_int_t n,
const std::complex<float>* h, const fortran_int_t ldh,
std::complex<float>* w, std::complex<float>* vl,
const fortran_int_t ldvl, std::complex<float>* vr,
const fortran_int_t ldvr, const fortran_int_t mm, fortran_int_t& m,
std::complex<float>* work, float* rwork, fortran_int_t* ifaill,
fortran_int_t* ifailr ) {
fortran_int_t info(0);
LAPACK_CHSEIN( &lapack_option< Side >::value, &eigsrc, &initv, select, &n,
h, &ldh, w, vl, &ldvl, vr, &ldvr, &mm, &m, work, rwork, ifaill,
ifailr, &info );
return info;
}
//
// Overloaded function for dispatching to
// * netlib-compatible LAPACK backend (the default), and
// * complex<double> value-type.
//
template< typename Side >
inline std::ptrdiff_t hsein( const Side, const char eigsrc, const char initv,
const fortran_bool_t* select, const fortran_int_t n,
const std::complex<double>* h, const fortran_int_t ldh,
std::complex<double>* w, std::complex<double>* vl,
const fortran_int_t ldvl, std::complex<double>* vr,
const fortran_int_t ldvr, const fortran_int_t mm, fortran_int_t& m,
std::complex<double>* work, double* rwork, fortran_int_t* ifaill,
fortran_int_t* ifailr ) {
fortran_int_t info(0);
LAPACK_ZHSEIN( &lapack_option< Side >::value, &eigsrc, &initv, select, &n,
h, &ldh, w, vl, &ldvl, vr, &ldvr, &mm, &m, work, rwork, ifaill,
ifailr, &info );
return info;
}
} // namespace detail
//
// Value-type based template class. Use this class if you need a type
// for dispatching to hsein.
//
template< typename Value, typename Enable = void >
struct hsein_impl {};
//
// This implementation is enabled if Value is a real type.
//
template< typename Value >
struct hsein_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 Side, typename VectorSELECT, typename MatrixH,
typename VectorWR, typename VectorWI, typename MatrixVL,
typename MatrixVR, typename VectorIFAILL, typename VectorIFAILR,
typename WORK >
static std::ptrdiff_t invoke( const Side side, const char eigsrc,
const char initv, VectorSELECT& select, const MatrixH& h,
VectorWR& wr, const VectorWI& wi, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr, detail::workspace1<
WORK > work ) {
namespace bindings = ::boost::numeric::bindings;
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixH >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixVL >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixVR >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixH >::type >::type,
typename remove_const< typename bindings::value_type<
VectorWR >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixH >::type >::type,
typename remove_const< typename bindings::value_type<
VectorWI >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixH >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixVL >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixH >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixVR >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< VectorIFAILL >::type >::type,
typename remove_const< typename bindings::value_type<
VectorIFAILR >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorSELECT >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorWR >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixVL >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixVR >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorIFAILL >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorIFAILR >::value) );
BOOST_ASSERT( bindings::size(select) >= bindings::size_column(h) );
BOOST_ASSERT( bindings::size(wi) >= bindings::size_column(h) );
BOOST_ASSERT( bindings::size(work.select(real_type())) >=
min_size_work( bindings::size_column(h) ));
BOOST_ASSERT( bindings::size(wr) >= bindings::size_column(h) );
BOOST_ASSERT( bindings::size_column(h) >= 0 );
BOOST_ASSERT( bindings::size_minor(h) == 1 ||
bindings::stride_minor(h) == 1 );
BOOST_ASSERT( bindings::size_minor(vl) == 1 ||
bindings::stride_minor(vl) == 1 );
BOOST_ASSERT( bindings::size_minor(vr) == 1 ||
bindings::stride_minor(vr) == 1 );
BOOST_ASSERT( bindings::stride_major(h) >= std::max< std::ptrdiff_t >(1,
bindings::size_column(h)) );
BOOST_ASSERT( eigsrc == 'Q' || eigsrc == 'N' );
BOOST_ASSERT( initv == 'N' || initv == 'U' );
return detail::hsein( side, eigsrc, initv,
bindings::begin_value(select), bindings::size_column(h),
bindings::begin_value(h), bindings::stride_major(h),
bindings::begin_value(wr), bindings::begin_value(wi),
bindings::begin_value(vl), bindings::stride_major(vl),
bindings::begin_value(vr), bindings::stride_major(vr), mm, m,
bindings::begin_value(work.select(real_type())),
bindings::begin_value(ifaill), bindings::begin_value(ifailr) );
}
//
// 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 Side, typename VectorSELECT, typename MatrixH,
typename VectorWR, typename VectorWI, typename MatrixVL,
typename MatrixVR, typename VectorIFAILL, typename VectorIFAILR >
static std::ptrdiff_t invoke( const Side side, const char eigsrc,
const char initv, VectorSELECT& select, const MatrixH& h,
VectorWR& wr, const VectorWI& wi, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr, minimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
bindings::detail::array< real_type > tmp_work( min_size_work(
bindings::size_column(h) ) );
return invoke( side, eigsrc, initv, select, h, wr, wi, vl, vr, mm, m,
ifaill, ifailr, workspace( tmp_work ) );
}
//
// 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 Side, typename VectorSELECT, typename MatrixH,
typename VectorWR, typename VectorWI, typename MatrixVL,
typename MatrixVR, typename VectorIFAILL, typename VectorIFAILR >
static std::ptrdiff_t invoke( const Side side, const char eigsrc,
const char initv, VectorSELECT& select, const MatrixH& h,
VectorWR& wr, const VectorWI& wi, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr, optimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
return invoke( side, eigsrc, initv, select, h, wr, wi, vl, vr, mm, m,
ifaill, ifailr, minimal_workspace() );
}
//
// 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 (n+2)*n;
}
};
//
// This implementation is enabled if Value is a complex type.
//
template< typename Value >
struct hsein_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 Side, typename VectorSELECT, typename MatrixH,
typename VectorW, typename MatrixVL, typename MatrixVR,
typename VectorIFAILL, typename VectorIFAILR, typename WORK,
typename RWORK >
static std::ptrdiff_t invoke( const Side side, const char eigsrc,
const char initv, const VectorSELECT& select, const MatrixH& h,
VectorW& w, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr, detail::workspace2<
WORK, RWORK > work ) {
namespace bindings = ::boost::numeric::bindings;
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixH >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixVL >::value) );
BOOST_STATIC_ASSERT( (bindings::is_column_major< MatrixVR >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< VectorIFAILL >::type >::type,
typename remove_const< typename bindings::value_type<
VectorIFAILR >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixH >::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< MatrixH >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixVL >::type >::type >::value) );
BOOST_STATIC_ASSERT( (boost::is_same< typename remove_const<
typename bindings::value_type< MatrixH >::type >::type,
typename remove_const< typename bindings::value_type<
MatrixVR >::type >::type >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorW >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixVL >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< MatrixVR >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorIFAILL >::value) );
BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorIFAILR >::value) );
BOOST_ASSERT( bindings::size(select) >= bindings::size_column(h) );
BOOST_ASSERT( bindings::size(w) >= bindings::size_column(h) );
BOOST_ASSERT( bindings::size(work.select(real_type())) >=
min_size_rwork( bindings::size_column(h) ));
BOOST_ASSERT( bindings::size(work.select(value_type())) >=
min_size_work( bindings::size_column(h) ));
BOOST_ASSERT( bindings::size_column(h) >= 0 );
BOOST_ASSERT( bindings::size_minor(h) == 1 ||
bindings::stride_minor(h) == 1 );
BOOST_ASSERT( bindings::size_minor(vl) == 1 ||
bindings::stride_minor(vl) == 1 );
BOOST_ASSERT( bindings::size_minor(vr) == 1 ||
bindings::stride_minor(vr) == 1 );
BOOST_ASSERT( bindings::stride_major(h) >= std::max< std::ptrdiff_t >(1,
bindings::size_column(h)) );
BOOST_ASSERT( eigsrc == 'Q' || eigsrc == 'N' );
BOOST_ASSERT( initv == 'N' || initv == 'U' );
return detail::hsein( side, eigsrc, initv,
bindings::begin_value(select), bindings::size_column(h),
bindings::begin_value(h), bindings::stride_major(h),
bindings::begin_value(w), bindings::begin_value(vl),
bindings::stride_major(vl), bindings::begin_value(vr),
bindings::stride_major(vr), mm, m,
bindings::begin_value(work.select(value_type())),
bindings::begin_value(work.select(real_type())),
bindings::begin_value(ifaill), bindings::begin_value(ifailr) );
}
//
// 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 Side, typename VectorSELECT, typename MatrixH,
typename VectorW, typename MatrixVL, typename MatrixVR,
typename VectorIFAILL, typename VectorIFAILR >
static std::ptrdiff_t invoke( const Side side, const char eigsrc,
const char initv, const VectorSELECT& select, const MatrixH& h,
VectorW& w, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr, minimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
bindings::detail::array< value_type > tmp_work( min_size_work(
bindings::size_column(h) ) );
bindings::detail::array< real_type > tmp_rwork( min_size_rwork(
bindings::size_column(h) ) );
return invoke( side, eigsrc, initv, select, h, w, vl, vr, mm, m,
ifaill, ifailr, workspace( tmp_work, tmp_rwork ) );
}
//
// 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 Side, typename VectorSELECT, typename MatrixH,
typename VectorW, typename MatrixVL, typename MatrixVR,
typename VectorIFAILL, typename VectorIFAILR >
static std::ptrdiff_t invoke( const Side side, const char eigsrc,
const char initv, const VectorSELECT& select, const MatrixH& h,
VectorW& w, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr, optimal_workspace ) {
namespace bindings = ::boost::numeric::bindings;
return invoke( side, eigsrc, initv, select, h, w, vl, vr, mm, m,
ifaill, ifailr, minimal_workspace() );
}
//
// 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 n*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 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 hsein_impl classes. In the
// documentation, most overloads are collapsed to avoid a large number of
// prototypes which are very similar.
//
//
// Overloaded function for hsein. Its overload differs for
// * User-defined workspace
//
template< typename Side, typename VectorSELECT, typename MatrixH,
typename VectorWR, typename VectorWI, typename MatrixVL,
typename MatrixVR, typename VectorIFAILL, typename VectorIFAILR,
typename Workspace >
inline typename boost::enable_if< detail::is_workspace< Workspace >,
std::ptrdiff_t >::type
hsein( const Side side, const char eigsrc, const char initv,
VectorSELECT& select, const MatrixH& h, VectorWR& wr,
const VectorWI& wi, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr, Workspace work ) {
return hsein_impl< typename bindings::value_type<
MatrixH >::type >::invoke( side, eigsrc, initv, select, h, wr, wi,
vl, vr, mm, m, ifaill, ifailr, work );
}
//
// Overloaded function for hsein. Its overload differs for
// * Default workspace-type (optimal)
//
template< typename Side, typename VectorSELECT, typename MatrixH,
typename VectorWR, typename VectorWI, typename MatrixVL,
typename MatrixVR, typename VectorIFAILL, typename VectorIFAILR >
inline typename boost::disable_if< detail::is_workspace< VectorIFAILR >,
std::ptrdiff_t >::type
hsein( const Side side, const char eigsrc, const char initv,
VectorSELECT& select, const MatrixH& h, VectorWR& wr,
const VectorWI& wi, MatrixVL& vl, MatrixVR& vr,
const fortran_int_t mm, fortran_int_t& m,
VectorIFAILL& ifaill, VectorIFAILR& ifailr ) {
return hsein_impl< typename bindings::value_type<
MatrixH >::type >::invoke( side, eigsrc, initv, select, h, wr, wi,
vl, vr, mm, m, ifaill, ifailr, optimal_workspace() );
}
//
// Overloaded function for hsein. Its overload differs for
// * User-defined workspace
//
template< typename Side, typename VectorSELECT, typename MatrixH,
typename VectorW, typename MatrixVL, typename MatrixVR,
typename VectorIFAILL, typename VectorIFAILR, typename Workspace >
inline typename boost::enable_if< detail::is_workspace< Workspace >,
std::ptrdiff_t >::type
hsein( const Side side, const char eigsrc, const char initv,
const VectorSELECT& select, const MatrixH& h, VectorW& w,
MatrixVL& vl, MatrixVR& vr, const fortran_int_t mm,
fortran_int_t& m, VectorIFAILL& ifaill, VectorIFAILR& ifailr,
Workspace work ) {
return hsein_impl< typename bindings::value_type<
MatrixH >::type >::invoke( side, eigsrc, initv, select, h, w, vl,
vr, mm, m, ifaill, ifailr, work );
}
//
// Overloaded function for hsein. Its overload differs for
// * Default workspace-type (optimal)
//
template< typename Side, typename VectorSELECT, typename MatrixH,
typename VectorW, typename MatrixVL, typename MatrixVR,
typename VectorIFAILL, typename VectorIFAILR >
inline typename boost::disable_if< detail::is_workspace< VectorIFAILR >,
std::ptrdiff_t >::type
hsein( const Side side, const char eigsrc, const char initv,
const VectorSELECT& select, const MatrixH& h, VectorW& w,
MatrixVL& vl, MatrixVR& vr, const fortran_int_t mm,
fortran_int_t& m, VectorIFAILL& ifaill, VectorIFAILR& ifailr ) {
return hsein_impl< typename bindings::value_type<
MatrixH >::type >::invoke( side, eigsrc, initv, select, h, w, vl,
vr, mm, m, ifaill, ifailr, optimal_workspace() );
}
} // namespace lapack
} // namespace bindings
} // namespace numeric
} // namespace boost
#endif
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