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
|
/*
BLIS
An object-based framework for developing high-performance BLAS-like
libraries.
Copyright (C) 2014, The University of Texas at Austin
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name(s) of the copyright holder(s) nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "pmmintrin.h"
#include "blis.h"
typedef union
{
__m128d v;
double d[2];
} v2df_t;
void bli_ddotv_penryn_int
(
conj_t conjx,
conj_t conjy,
dim_t n,
double* restrict x, inc_t incx,
double* restrict y, inc_t incy,
double* restrict rho,
cntx_t* restrict cntx
)
{
double* restrict x_cast = x;
double* restrict y_cast = y;
double* restrict rho_cast = rho;
dim_t i;
dim_t n_pre;
dim_t n_run;
dim_t n_left;
double* restrict x1;
double* restrict y1;
double rho1;
double x1c, y1c;
v2df_t rho1v;
v2df_t x1v, y1v;
bool use_ref = FALSE;
// If the vector lengths are zero, set rho to zero and return.
if ( bli_zero_dim1( n ) )
{
PASTEMAC(d,set0s)( *rho_cast );
return;
}
n_pre = 0;
// If there is anything that would interfere with our use of aligned
// vector loads/stores, call the reference implementation.
if ( incx != 1 || incy != 1 )
{
use_ref = TRUE;
}
else if ( bli_is_unaligned_to( ( siz_t )x, 16 ) ||
bli_is_unaligned_to( ( siz_t )y, 16 ) )
{
use_ref = TRUE;
if ( bli_is_unaligned_to( ( siz_t )x, 16 ) &&
bli_is_unaligned_to( ( siz_t )y, 16 ) )
{
use_ref = FALSE;
n_pre = 1;
}
}
// Call the reference implementation if needed.
if ( use_ref == TRUE )
{
ddotv_ker_ft f = bli_cntx_get_l1v_ker_dt( BLIS_DOUBLE, BLIS_DOTV_KER, cntx );
f
(
conjx,
conjy,
n,
x, incx,
y, incy,
rho,
cntx
);
return;
}
n_run = ( n - n_pre ) / 2;
n_left = ( n - n_pre ) % 2;
x1 = x_cast;
y1 = y_cast;
PASTEMAC(d,set0s)( rho1 );
if ( n_pre == 1 )
{
x1c = *x1;
y1c = *y1;
rho1 += x1c * y1c;
x1 += incx;
y1 += incy;
}
rho1v.v = _mm_setzero_pd();
for ( i = 0; i < n_run; ++i )
{
x1v.v = _mm_load_pd( ( double* )x1 );
y1v.v = _mm_load_pd( ( double* )y1 );
rho1v.v += x1v.v * y1v.v;
//x1 += 2*incx;
//y1 += 2*incy;
x1 += 2;
y1 += 2;
}
rho1 += rho1v.d[0] + rho1v.d[1];
if ( n_left > 0 )
{
for ( i = 0; i < n_left; ++i )
{
x1c = *x1;
y1c = *y1;
rho1 += x1c * y1c;
x1 += incx;
y1 += incy;
}
}
PASTEMAC(d,copys)( rho1, *rho_cast );
}
|
