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1/*
2 [auto_generated]
3 boost/numeric/odeint/external/mkl/mkl_operations.hpp
4
5 [begin_description]
6 Wrapper classes for intel math kernel library types.
7 Get a free, non-commercial download of MKL at
8 http://software.intel.com/en-us/articles/non-commercial-software-download/
9 [end_description]
10
11 Copyright 2010-2011 Mario Mulansky
12 Copyright 2011-2013 Karsten Ahnert
13
14 Distributed under the Boost Software License, Version 1.0.
15 (See accompanying file LICENSE_1_0.txt or
16 copy at http://www.boost.org/LICENSE_1_0.txt)
17 */
18
19
20#ifndef BOOST_NUMERIC_ODEINT_EXTERNAL_MKL_MKL_OPERATIONS_HPP_INCLUDED
21#define BOOST_NUMERIC_ODEINT_EXTERNAL_MKL_MKL_OPERATIONS_HPP_INCLUDED
22
23#include <iostream>
24
25#include <mkl_cblas.h>
26#include <boost/numeric/odeint/algebra/default_operations.hpp>
27
28/* exemplary example for writing bindings to the Intel MKL library
29 * see test/mkl for how to use mkl with odeint
30 * this is a quick and dirty implementation showing the general possibility.
31 * It works only with containers based on double and sequential memory allocation.
32 */
33
34namespace boost {
35namespace numeric {
36namespace odeint {
37
38/* only defined for doubles */
39struct mkl_operations
40{
41 //template< class Fac1 , class Fac2 > struct scale_sum2;
42
43 template< class F1 = double , class F2 = F1 >
44 struct scale_sum2
45 {
46 typedef double Fac1;
47 typedef double Fac2;
48 const Fac1 m_alpha1;
49 const Fac2 m_alpha2;
50
51 scale_sum2( const Fac1 alpha1 , const Fac2 alpha2 ) : m_alpha1( alpha1 ) , m_alpha2( alpha2 ) { }
52
53 template< class T1 , class T2 , class T3 >
54 void operator()( T1 &t1 , const T2 &t2 , const T3 &t3) const
55 { // t1 = m_alpha1 * t2 + m_alpha2 * t3;
56 // we get Containers that have size() and [i]-access
57
58 const int n = t1.size();
59 //boost::numeric::odeint::copy( t1 , t3 );
60 if( &(t2[0]) != &(t1[0]) )
61 {
62 cblas_dcopy( n , &(t2[0]) , 1 , &(t1[0]) , 1 );
63 }
64 cblas_dscal( n , m_alpha1 , &(t1[0]) , 1 );
65 cblas_daxpy( n , m_alpha2 , &(t3[0]) , 1 , &(t1[0]) , 1 );
66 //daxpby( &n , &m_alpha2 , &(t3[0]) , &one , &m_alpha1 , &(t1[0]) , &one );
67 }
68 };
69
70 template< class F1 = double , class F2 = F1 , class F3 = F2 >
71 struct scale_sum3
72 {
73 typedef double Fac1;
74 typedef double Fac2;
75 typedef double Fac3;
76 const Fac1 m_alpha1;
77 const Fac2 m_alpha2;
78 const Fac3 m_alpha3;
79
80 scale_sum3( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 )
81 : m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) { }
82
83 template< class T1 , class T2 , class T3 , class T4 >
84 void operator()( T1 &t1 , const T2 &t2 , const T3 &t3 , const T4 &t4 ) const
85 { // t1 = m_alpha1 * t2 + m_alpha2 * t3 + m_alpha3 * t4;
86 // we get Containers that have size() and [i]-access
87
88 const int n = t1.size();
89 //boost::numeric::odeint::copy( t1 , t3 );
90 if( &(t2[0]) != &(t1[0]) )
91 {
92 cblas_dcopy( n , &(t2[0]) , 1 , &(t1[0]) , 1 );
93 }
94 cblas_dscal( n , m_alpha1 , &(t1[0]) , 1 );
95 cblas_daxpy( n , m_alpha2 , &(t3[0]) , 1 , &(t1[0]) , 1 );
96 //daxpby( &n , &m_alpha2 , &(t3[0]) , &one , &m_alpha1 , &(t1[0]) , &one );
97 cblas_daxpy( n , m_alpha3 , &(t4[0]) , 1 , &(t1[0]) , 1 );
98 }
99 };
100
101 template< class F1 = double , class F2 = F1 , class F3 = F2 , class F4 = F3 >
102 struct scale_sum4
103 {
104 typedef double Fac1;
105 typedef double Fac2;
106 typedef double Fac3;
107 typedef double Fac4;
108 const Fac1 m_alpha1;
109 const Fac2 m_alpha2;
110 const Fac3 m_alpha3;
111 const Fac4 m_alpha4;
112
113 scale_sum4( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 , const Fac4 alpha4 )
114 : m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) , m_alpha4( alpha4 ) { }
115
116 template< class T1 , class T2 , class T3 , class T4 , class T5 >
117 void operator()( T1 &t1 , const T2 &t2 , const T3 &t3 , const T4 &t4 , const T5 &t5 ) const
118 { // t1 = m_alpha1 * t2 + m_alpha2 * t3 + m_alpha3 * t4 + m_alpha4 * t5;
119 // we get Containers that have size() and [i]-access
120
121 const int n = t1.size();
122 //boost::numeric::odeint::copy( t1 , t3 );
123 if( &(t2[0]) != &(t1[0]) )
124 {
125 cblas_dcopy( n , &(t2[0]) , 1 , &(t1[0]) , 1 );
126 }
127
128 cblas_dscal( n , m_alpha1 , &(t1[0]) , 1 );
129 cblas_daxpy( n , m_alpha2 , &(t3[0]) , 1 , &(t1[0]) , 1 );
130 //daxpby( &n , &m_alpha2 , &(t3[0]) , &one , &m_alpha1 , &(t1[0]) , &one );
131 cblas_daxpy( n , m_alpha3 , &(t4[0]) , 1 , &(t1[0]) , 1 );
132 cblas_daxpy( n , m_alpha4 , &(t5[0]) , 1 , &(t1[0]) , 1 );
133 }
134 };
135
136
137 template< class F1 = double , class F2 = F1 , class F3 = F2 , class F4 = F3 , class F5 = F4 >
138 struct scale_sum5
139 {
140 typedef double Fac1;
141 typedef double Fac2;
142 typedef double Fac3;
143 typedef double Fac4;
144 typedef double Fac5;
145 const Fac1 m_alpha1;
146 const Fac2 m_alpha2;
147 const Fac3 m_alpha3;
148 const Fac4 m_alpha4;
149 const Fac5 m_alpha5;
150
151 scale_sum5( const Fac1 alpha1 , const Fac2 alpha2 , const Fac3 alpha3 , const Fac4 alpha4 , const Fac5 alpha5 )
152 : m_alpha1( alpha1 ) , m_alpha2( alpha2 ) , m_alpha3( alpha3 ) , m_alpha4( alpha4 ) , m_alpha5( alpha5 ) { }
153
154 template< class T1 , class T2 , class T3 , class T4 , class T5 , class T6 >
155 void operator()( T1 &t1 , const T2 &t2 , const T3 &t3 , const T4 &t4 , const T5 &t5 , const T6 &t6 ) const
156 { // t1 = m_alpha1 * t2 + m_alpha2 * t3 + m_alpha3 * t4 + m_alpha4 * t5 + m_alpha5 * t6;
157 // we get Containers that have size() and [i]-access
158
159 const int n = t1.size();
160 //boost::numeric::odeint::copy( t1 , t3 );
161 if( &(t2[0]) != &(t1[0]) )
162 {
163 cblas_dcopy( n , &(t2[0]) , 1 , &(t1[0]) , 1 );
164 }
165
166 cblas_dscal( n , m_alpha1 , &(t1[0]) , 1 );
167 cblas_daxpy( n , m_alpha2 , &(t3[0]) , 1 , &(t1[0]) , 1 );
168 //daxpby( &n , &m_alpha2 , &(t3[0]) , &one , &m_alpha1 , &(t1[0]) , &one );
169 cblas_daxpy( n , m_alpha3 , &(t4[0]) , 1 , &(t1[0]) , 1 );
170 cblas_daxpy( n , m_alpha4 , &(t5[0]) , 1 , &(t1[0]) , 1 );
171 cblas_daxpy( n , m_alpha5 , &(t6[0]) , 1 , &(t1[0]) , 1 );
172 }
173 };
174
175};
176
177} // odeint
178} // numeric
179} // boost
180
181#endif // BOOST_NUMERIC_ODEINT_EXTERNAL_MKL_MKL_OPERATIONS_HPP_INCLUDED