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
|
/*
BLIS
An object-based framework for developing high-performance BLAS-like
libraries.
Copyright (C) 2019, Advanced Micro Devices, Inc.
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 "blis.h"
err_t bli_gemmsup
(
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c,
cntx_t* cntx,
rntm_t* rntm
)
{
// Return early if small matrix handling is disabled at configure-time.
#ifdef BLIS_DISABLE_SUP_HANDLING
return BLIS_FAILURE;
#endif
// Return early if this is a mixed-datatype computation.
if ( bli_obj_dt( c ) != bli_obj_dt( a ) ||
bli_obj_dt( c ) != bli_obj_dt( b ) ||
bli_obj_comp_prec( c ) != bli_obj_prec( c ) ) return BLIS_FAILURE;
// Obtain a valid (native) context from the gks if necessary.
// NOTE: This must be done before calling the _check() function, since
// that function assumes the context pointer is valid.
if ( cntx == NULL ) cntx = bli_gks_query_cntx();
// Return early if a microkernel preference-induced transposition would
// have been performed and shifted the dimensions outside of the space
// of sup-handled problems.
if ( bli_cntx_l3_vir_ukr_dislikes_storage_of( c, BLIS_GEMM_UKR, cntx ) )
{
const num_t dt = bli_obj_dt( c );
const dim_t m = bli_obj_length( c );
const dim_t n = bli_obj_width( c );
const dim_t k = bli_obj_width_after_trans( a );
// Pass in m and n reversed, which simulates a transposition of the
// entire operation pursuant to the microkernel storage preference.
if ( !bli_cntx_l3_sup_thresh_is_met( dt, n, m, k, cntx ) )
return BLIS_FAILURE;
}
else // ukr_prefers_storage_of( c, ... )
{
const num_t dt = bli_obj_dt( c );
const dim_t m = bli_obj_length( c );
const dim_t n = bli_obj_width( c );
const dim_t k = bli_obj_width_after_trans( a );
if ( !bli_cntx_l3_sup_thresh_is_met( dt, m, n, k, cntx ) )
return BLIS_FAILURE;
}
// Initialize a local runtime with global settings if necessary. Note
// that in the case that a runtime is passed in, we make a local copy.
rntm_t rntm_l;
if ( rntm == NULL ) { bli_rntm_init_from_global( &rntm_l ); rntm = &rntm_l; }
else { rntm_l = *rntm; rntm = &rntm_l; }
#if 0
const num_t dt = bli_obj_dt( c );
const dim_t m = bli_obj_length( c );
const dim_t n = bli_obj_width( c );
const dim_t k = bli_obj_width_after_trans( a );
const dim_t tm = bli_cntx_get_l3_sup_thresh_dt( dt, BLIS_MT, cntx );
const dim_t tn = bli_cntx_get_l3_sup_thresh_dt( dt, BLIS_NT, cntx );
const dim_t tk = bli_cntx_get_l3_sup_thresh_dt( dt, BLIS_KT, cntx );
printf( "dims: %d %d %d (threshs: %d %d %d)\n",
(int)m, (int)n, (int)k, (int)tm, (int)tn, (int)tk );
#endif
// We've now ruled out the following two possibilities:
// - the ukernel prefers the operation as-is, and the sup thresholds are
// unsatisfied.
// - the ukernel prefers a transposed operation, and the sup thresholds are
// unsatisfied after taking into account the transposition.
// This implies that the sup thresholds (at least one of them) are met.
// and the small/unpacked handler should be called.
// NOTE: The sup handler is free to enforce a stricter threshold regime
// if it so chooses, in which case it can/should return BLIS_FAILURE.
// Query the small/unpacked handler from the context and invoke it.
gemmsup_oft gemmsup_fp = bli_cntx_get_l3_sup_handler( BLIS_GEMM, cntx );
return
gemmsup_fp
(
alpha,
a,
b,
beta,
c,
cntx,
rntm
);
}
err_t bli_gemmtsup
(
obj_t* alpha,
obj_t* a,
obj_t* b,
obj_t* beta,
obj_t* c,
cntx_t* cntx,
rntm_t* rntm
)
{
// Return early if small matrix handling is disabled at configure-time.
#ifdef BLIS_DISABLE_SUP_HANDLING
return BLIS_FAILURE;
#endif
// Return early if this is a mixed-datatype computation.
if ( bli_obj_dt( c ) != bli_obj_dt( a ) ||
bli_obj_dt( c ) != bli_obj_dt( b ) ||
bli_obj_comp_prec( c ) != bli_obj_prec( c ) ) return BLIS_FAILURE;
// Obtain a valid (native) context from the gks if necessary.
// NOTE: This must be done before calling the _check() function, since
// that function assumes the context pointer is valid.
if ( cntx == NULL ) cntx = bli_gks_query_cntx();
// Return early if the problem dimensions exceed their sup thresholds.
// Notice that we do not bother to check whether the microkernel
// prefers or dislikes the storage of C, since the same check is called
// for either way.
{
const num_t dt = bli_obj_dt( c );
const dim_t m = bli_obj_length( c );
const dim_t k = bli_obj_width_after_trans( a );
if ( !bli_cntx_l3_sup_thresh_is_met( dt, m, m, k, cntx ) )
return BLIS_FAILURE;
}
// Initialize a local runtime with global settings if necessary. Note
// that in the case that a runtime is passed in, we make a local copy.
rntm_t rntm_l;
if ( rntm == NULL ) { bli_rntm_init_from_global( &rntm_l ); rntm = &rntm_l; }
else { rntm_l = *rntm; rntm = &rntm_l; }
// We've now ruled out the possibility that the sup thresholds are
// unsatisfied.
// This implies that the sup thresholds (at least one of them) are met.
// and the small/unpacked handler should be called.
// NOTE: The sup handler is free to enforce a stricter threshold regime
// if it so chooses, in which case it can/should return BLIS_FAILURE.
// Query the small/unpacked handler from the context and invoke it.
gemmtsup_oft gemmtsup_fp = bli_cntx_get_l3_sup_handler( BLIS_GEMMT, cntx );
return
gemmtsup_fp
(
alpha,
a,
b,
beta,
c,
cntx,
rntm
);
}
|
