234 lines
7.5 KiB
Plaintext
234 lines
7.5 KiB
Plaintext
/*
|
|
[auto_generated]
|
|
boost/numeric/odeint/external/thrust/thrust_operations.hpp
|
|
|
|
[begin_description]
|
|
Operations of thrust zipped iterators. Is the counterpart of the thrust_algebra.
|
|
[end_description]
|
|
|
|
Copyright 2010-2013 Mario Mulansky
|
|
Copyright 2010-2012 Karsten Ahnert
|
|
|
|
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)
|
|
*/
|
|
|
|
|
|
#ifndef BOOST_NUMERIC_ODEINT_EXTERNAL_THRUST_THRUST_OPERATIONS_HPP_INCLUDED
|
|
#define BOOST_NUMERIC_ODEINT_EXTERNAL_THRUST_THRUST_OPERATIONS_HPP_INCLUDED
|
|
|
|
namespace boost {
|
|
namespace numeric {
|
|
namespace odeint {
|
|
|
|
#include <thrust/tuple.h>
|
|
#include <thrust/iterator/zip_iterator.h>
|
|
|
|
/**ToDo extend to scale_sum13 for rk78 */
|
|
|
|
struct thrust_operations
|
|
{
|
|
template< class Fac1 = double , class Fac2 = Fac1 >
|
|
struct scale_sum2
|
|
{
|
|
const Fac1 m_alpha1;
|
|
const Fac2 m_alpha2;
|
|
|
|
scale_sum2( const Fac1 alpha1 , const Fac2 alpha2 )
|
|
: m_alpha1( alpha1 ) , m_alpha2( alpha2 ) { }
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
thrust::get<0>(t) = m_alpha1 * thrust::get<1>(t) + m_alpha2 * thrust::get<2>(t);
|
|
}
|
|
};
|
|
|
|
template< class Fac1 = double , class Fac2 = Fac1 >
|
|
struct scale_sum_swap2
|
|
{
|
|
const Fac1 m_alpha1;
|
|
const Fac2 m_alpha2;
|
|
|
|
scale_sum_swap2( const Fac1 alpha1 , const Fac2 alpha2 )
|
|
: m_alpha1( alpha1 ) , m_alpha2( alpha2 ) { }
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
typename thrust::tuple_element<0,Tuple>::type tmp = thrust::get<0>(t);
|
|
thrust::get<0>(t) = m_alpha1 * thrust::get<1>(t) + m_alpha2 * thrust::get<2>(t);
|
|
thrust::get<1>(t) = tmp;
|
|
}
|
|
};
|
|
|
|
template< class Fac1 = double , class Fac2 = Fac1 , class Fac3 = Fac2 >
|
|
struct scale_sum3
|
|
{
|
|
const Fac1 m_alpha1;
|
|
const Fac2 m_alpha2;
|
|
const Fac3 m_alpha3;
|
|
|
|
scale_sum3( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 )
|
|
: m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) { }
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
thrust::get<0>(t) = m_alpha1 * thrust::get<1>(t) +
|
|
m_alpha2 * thrust::get<2>(t) +
|
|
m_alpha3 * thrust::get<3>(t);
|
|
}
|
|
};
|
|
|
|
|
|
template< class Fac1 = double , class Fac2 = Fac1 , class Fac3 = Fac2 , class Fac4 = Fac3 >
|
|
struct scale_sum4
|
|
{
|
|
const Fac1 m_alpha1;
|
|
const Fac2 m_alpha2;
|
|
const Fac3 m_alpha3;
|
|
const Fac4 m_alpha4;
|
|
|
|
scale_sum4( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 , const Fac4 alpha4 )
|
|
: m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) , m_alpha4( alpha4 ){ }
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
thrust::get<0>(t) = m_alpha1 * thrust::get<1>(t) +
|
|
m_alpha2 * thrust::get<2>(t) +
|
|
m_alpha3 * thrust::get<3>(t) +
|
|
m_alpha4 * thrust::get<4>(t);
|
|
}
|
|
};
|
|
|
|
|
|
template< class Fac1 = double , class Fac2 = Fac1 , class Fac3 = Fac2 ,
|
|
class Fac4 = Fac3 , class Fac5 = Fac4 >
|
|
struct scale_sum5
|
|
{
|
|
const Fac1 m_alpha1;
|
|
const Fac2 m_alpha2;
|
|
const Fac3 m_alpha3;
|
|
const Fac4 m_alpha4;
|
|
const Fac5 m_alpha5;
|
|
|
|
scale_sum5( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 ,
|
|
const Fac4 alpha4 , const Fac5 alpha5 )
|
|
: m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) ,
|
|
m_alpha4( alpha4 ) , m_alpha5( alpha5 ) { }
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
thrust::get<0>(t) = m_alpha1 * thrust::get<1>(t) +
|
|
m_alpha2 * thrust::get<2>(t) +
|
|
m_alpha3 * thrust::get<3>(t) +
|
|
m_alpha4 * thrust::get<4>(t) +
|
|
m_alpha5 * thrust::get<5>(t);
|
|
}
|
|
};
|
|
|
|
|
|
template< class Fac1 = double , class Fac2 = Fac1 , class Fac3 = Fac2 ,
|
|
class Fac4 = Fac3 , class Fac5 = Fac4 , class Fac6 = Fac5 >
|
|
struct scale_sum6
|
|
{
|
|
const Fac1 m_alpha1;
|
|
const Fac2 m_alpha2;
|
|
const Fac3 m_alpha3;
|
|
const Fac4 m_alpha4;
|
|
const Fac5 m_alpha5;
|
|
const Fac6 m_alpha6;
|
|
|
|
scale_sum6( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 ,
|
|
const Fac4 alpha4 , const Fac5 alpha5 , const Fac6 alpha6 )
|
|
: m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) ,
|
|
m_alpha4( alpha4 ) , m_alpha5( alpha5 ) , m_alpha6( alpha6 ) { }
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
thrust::get<0>(t) = m_alpha1 * thrust::get<1>(t) +
|
|
m_alpha2 * thrust::get<2>(t) +
|
|
m_alpha3 * thrust::get<3>(t) +
|
|
m_alpha4 * thrust::get<4>(t) +
|
|
m_alpha5 * thrust::get<5>(t) +
|
|
m_alpha6 * thrust::get<6>(t);
|
|
}
|
|
};
|
|
|
|
|
|
template< class Fac1 = double , class Fac2 = Fac1 , class Fac3 = Fac2 , class Fac4 = Fac3 ,
|
|
class Fac5 = Fac4 , class Fac6 = Fac5 , class Fac7 = Fac6 >
|
|
struct scale_sum7
|
|
{
|
|
const Fac1 m_alpha1;
|
|
const Fac2 m_alpha2;
|
|
const Fac3 m_alpha3;
|
|
const Fac4 m_alpha4;
|
|
const Fac5 m_alpha5;
|
|
const Fac6 m_alpha6;
|
|
const Fac7 m_alpha7;
|
|
|
|
scale_sum7( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 ,
|
|
const Fac4 alpha4 , const Fac5 alpha5 , const Fac6 alpha6 , const Fac7 alpha7 )
|
|
: m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) ,
|
|
m_alpha4( alpha4 ) , m_alpha5( alpha5 ) , m_alpha6( alpha6 ) , m_alpha7( alpha7 ) { }
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
thrust::get<0>(t) = m_alpha1 * thrust::get<1>(t) +
|
|
m_alpha2 * thrust::get<2>(t) +
|
|
m_alpha3 * thrust::get<3>(t) +
|
|
m_alpha4 * thrust::get<4>(t) +
|
|
m_alpha5 * thrust::get<5>(t) +
|
|
m_alpha6 * thrust::get<6>(t) +
|
|
m_alpha7 * thrust::get<7>(t) ;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
template< class Fac1 = double >
|
|
struct rel_error
|
|
{
|
|
const Fac1 m_eps_abs , m_eps_rel , m_a_x , m_a_dxdt;
|
|
|
|
rel_error( const Fac1 eps_abs , const Fac1 eps_rel , const Fac1 a_x , const Fac1 a_dxdt )
|
|
: m_eps_abs( eps_abs ) , m_eps_rel( eps_rel ) , m_a_x( a_x ) , m_a_dxdt( a_dxdt ) { }
|
|
|
|
|
|
template< class Tuple >
|
|
__host__ __device__
|
|
void operator()( Tuple t ) const
|
|
{
|
|
using std::abs;
|
|
thrust::get< 0 >( t ) = abs( thrust::get< 0 >( t ) ) /
|
|
( m_eps_abs + m_eps_rel * ( m_a_x * abs( thrust::get< 1 >( t ) + m_a_dxdt * abs( thrust::get< 2 >( t ) ) ) ) );
|
|
}
|
|
|
|
typedef void result_type;
|
|
};
|
|
|
|
|
|
};
|
|
|
|
} // odeint
|
|
} // numeric
|
|
} // boost
|
|
|
|
|
|
#endif // BOOST_NUMERIC_ODEINT_EXTERNAL_THRUST_THRUST_OPERATIONS_HPP_INCLUDED
|