-
Notifications
You must be signed in to change notification settings - Fork 27
/
Copy pathsymm.cc
254 lines (228 loc) · 7.54 KB
/
symm.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
// Copyright (c) 2017-2023, University of Tennessee. All rights reserved.
// SPDX-License-Identifier: BSD-3-Clause
// This program is free software: you can redistribute it and/or modify it under
// the terms of the BSD 3-Clause license. See the accompanying LICENSE file.
#include "blas/fortran.h"
#include "blas.hh"
#include "blas_internal.hh"
#include "blas/counter.hh"
#include <limits>
#include <string.h>
namespace blas {
//==============================================================================
namespace internal {
//------------------------------------------------------------------------------
/// Low-level overload wrapper calls Fortran, float version.
/// @ingroup symm_internal
inline void symm(
char side,
char uplo,
blas_int m, blas_int n,
float alpha,
float const* A, blas_int lda,
float const* B, blas_int ldb,
float beta,
float* C, blas_int ldc )
{
BLAS_ssymm( &side, &uplo, &m, &n,
&alpha, A, &lda, B, &ldb, &beta, C, &ldc );
}
//------------------------------------------------------------------------------
/// Low-level overload wrapper calls Fortran, double version.
/// @ingroup symm_internal
inline void symm(
char side,
char uplo,
blas_int m, blas_int n,
double alpha,
double const* A, blas_int lda,
double const* B, blas_int ldb,
double beta,
double* C, blas_int ldc )
{
BLAS_dsymm( &side, &uplo, &m, &n,
&alpha, A, &lda, B, &ldb, &beta, C, &ldc );
}
//------------------------------------------------------------------------------
/// Low-level overload wrapper calls Fortran, complex<float> version.
/// @ingroup symm_internal
inline void symm(
char side,
char uplo,
blas_int m, blas_int n,
std::complex<float> alpha,
std::complex<float> const* A, blas_int lda,
std::complex<float> const* B, blas_int ldb,
std::complex<float> beta,
std::complex<float>* C, blas_int ldc )
{
BLAS_csymm( &side, &uplo, &m, &n,
(blas_complex_float*) &alpha,
(blas_complex_float*) A, &lda,
(blas_complex_float*) B, &ldb,
(blas_complex_float*) &beta,
(blas_complex_float*) C, &ldc );
}
//------------------------------------------------------------------------------
/// Low-level overload wrapper calls Fortran, complex<double> version.
/// @ingroup symm_internal
inline void symm(
char side,
char uplo,
blas_int m, blas_int n,
std::complex<double> alpha,
std::complex<double> const* A, blas_int lda,
std::complex<double> const* B, blas_int ldb,
std::complex<double> beta,
std::complex<double>* C, blas_int ldc )
{
BLAS_zsymm( &side, &uplo, &m, &n,
(blas_complex_double*) &alpha,
(blas_complex_double*) A, &lda,
(blas_complex_double*) B, &ldb,
(blas_complex_double*) &beta,
(blas_complex_double*) C, &ldc );
}
} // namespace internal
//==============================================================================
namespace impl {
//------------------------------------------------------------------------------
/// Mid-level templated wrapper checks and converts arguments,
/// then calls low-level wrapper.
/// @ingroup symm_internal
///
template <typename scalar_t>
void symm(
blas::Layout layout,
blas::Side side,
blas::Uplo uplo,
int64_t m, int64_t n,
scalar_t alpha,
scalar_t const* A, int64_t lda,
scalar_t const* B, int64_t ldb,
scalar_t beta,
scalar_t* C, int64_t ldc )
{
using std::swap;
// check arguments
blas_error_if( layout != Layout::ColMajor &&
layout != Layout::RowMajor );
blas_error_if( side != Side::Left &&
side != Side::Right );
blas_error_if( uplo != Uplo::Lower &&
uplo != Uplo::Upper );
blas_error_if( m < 0 );
blas_error_if( n < 0 );
if (side == Side::Left)
blas_error_if_msg( lda < m, "lda %lld < m %lld",
llong( lda ), llong( m ) );
else
blas_error_if_msg( lda < n, "lda %lld < n %lld",
llong( lda ), llong( n ) );
if (layout == Layout::ColMajor) {
blas_error_if( ldb < m );
blas_error_if( ldc < m );
}
else {
blas_error_if( ldb < n );
blas_error_if( ldc < n );
}
#ifdef BLAS_HAVE_PAPI
// PAPI instrumentation
counter::symm_type element;
memset( &element, 0, sizeof( element ) );
element = { side, uplo, m, n };
counter::insert( element, counter::Id::symm );
double gflops = 1e9 * blas::Gflop< scalar_t >::symm( side, m, n );
counter::inc_flop_count( (long long int)gflops );
#endif
// convert arguments
blas_int m_ = to_blas_int( m );
blas_int n_ = to_blas_int( n );
blas_int lda_ = to_blas_int( lda );
blas_int ldb_ = to_blas_int( ldb );
blas_int ldc_ = to_blas_int( ldc );
if (layout == Layout::RowMajor) {
// swap left <=> right, lower <=> upper, m <=> n
side = (side == Side::Left ? Side::Right : Side::Left);
uplo = (uplo == Uplo::Lower ? Uplo::Upper : Uplo::Lower);
swap( m_, n_ );
}
char side_ = to_char( side );
char uplo_ = to_char( uplo );
// call low-level wrapper
internal::symm( side_, uplo_, m_, n_,
alpha, A, lda_, B, ldb_, beta, C, ldc_ );
}
} // namespace impl
//==============================================================================
// High-level overloaded wrappers call mid-level templated wrapper.
//------------------------------------------------------------------------------
/// CPU, float version.
/// @ingroup symm
void symm(
blas::Layout layout,
blas::Side side,
blas::Uplo uplo,
int64_t m, int64_t n,
float alpha,
float const* A, int64_t lda,
float const* B, int64_t ldb,
float beta,
float* C, int64_t ldc )
{
impl::symm( layout, side, uplo, m, n,
alpha, A, lda, B, ldb, beta, C, ldc );
}
//------------------------------------------------------------------------------
/// CPU, double version.
/// @ingroup symm
void symm(
blas::Layout layout,
blas::Side side,
blas::Uplo uplo,
int64_t m, int64_t n,
double alpha,
double const* A, int64_t lda,
double const* B, int64_t ldb,
double beta,
double* C, int64_t ldc )
{
impl::symm( layout, side, uplo, m, n,
alpha, A, lda, B, ldb, beta, C, ldc );
}
//------------------------------------------------------------------------------
/// CPU, complex<float> version.
/// @ingroup symm
void symm(
blas::Layout layout,
blas::Side side,
blas::Uplo uplo,
int64_t m, int64_t n,
std::complex<float> alpha,
std::complex<float> const* A, int64_t lda,
std::complex<float> const* B, int64_t ldb,
std::complex<float> beta,
std::complex<float>* C, int64_t ldc )
{
impl::symm( layout, side, uplo, m, n,
alpha, A, lda, B, ldb, beta, C, ldc );
}
//------------------------------------------------------------------------------
/// CPU, complex<double> version.
/// @ingroup symm
void symm(
blas::Layout layout,
blas::Side side,
blas::Uplo uplo,
int64_t m, int64_t n,
std::complex<double> alpha,
std::complex<double> const* A, int64_t lda,
std::complex<double> const* B, int64_t ldb,
std::complex<double> beta,
std::complex<double>* C, int64_t ldc )
{
impl::symm( layout, side, uplo, m, n,
alpha, A, lda, B, ldb, beta, C, ldc );
}
} // namespace blas