1 /*
2 * Copyright (c) 2021-2022 Arm Limited.
3 *
4 * SPDX-License-Identifier: MIT
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24 #include "src/core/CL/DefaultLWSHeuristics.h"
25
26 #include "arm_compute/core/CL/CLKernelLibrary.h"
27
28 namespace
29 {
get_gemm_lws(size_t gws_x,size_t gws_y,size_t gws_z)30 cl::NDRange get_gemm_lws(size_t gws_x, size_t gws_y, size_t gws_z)
31 {
32 ARM_COMPUTE_UNUSED(gws_y);
33
34 if(gws_z != 1)
35 {
36 return cl::NDRange(4, 4, 2);
37 }
38 else
39 {
40 if(gws_x > 256)
41 {
42 return cl::NDRange(2, 16, 1);
43 }
44 else
45 {
46 return cl::NDRange(32, 4, 1);
47 }
48 }
49 }
50
get_winograd_lws(size_t gws_x,size_t gws_y,size_t gws_z)51 cl::NDRange get_winograd_lws(size_t gws_x, size_t gws_y, size_t gws_z)
52 {
53 ARM_COMPUTE_UNUSED(gws_x, gws_y, gws_z);
54
55 return cl::NDRange(4, 2, 1);
56 }
57
get_direct_lws(size_t gws_x,size_t gws_y,size_t gws_z)58 cl::NDRange get_direct_lws(size_t gws_x, size_t gws_y, size_t gws_z)
59 {
60 ARM_COMPUTE_UNUSED(gws_z);
61
62 if(gws_x < gws_y)
63 {
64 if(gws_x < 4)
65 {
66 return cl::NDRange(std::min(gws_x, static_cast<size_t>(2u)), 32, 1);
67 }
68 else
69 {
70 return cl::NDRange(std::min(gws_x, static_cast<size_t>(4u)), 8, 1);
71 }
72 }
73 else
74 {
75 return cl::NDRange(8, 4, 1);
76 }
77 }
78
get_dwc_lws(size_t gws_x,size_t gws_y,size_t gws_z)79 cl::NDRange get_dwc_lws(size_t gws_x, size_t gws_y, size_t gws_z)
80 {
81 ARM_COMPUTE_UNUSED(gws_y);
82 ARM_COMPUTE_UNUSED(gws_z);
83
84 if(gws_x < 32)
85 {
86 return cl::NDRange(gws_x, 4, 4);
87 }
88 else
89 {
90 return cl::NDRange(8, 4, 2);
91 }
92 }
93 } // namespace
94
95 namespace arm_compute
96 {
get_default_lws_for_type(CLKernelType kernel_type,cl::NDRange gws)97 cl::NDRange get_default_lws_for_type(CLKernelType kernel_type, cl::NDRange gws)
98 {
99 const size_t gws_x = gws[0];
100 const size_t gws_y = gws[1];
101 const size_t gws_z = gws[2];
102
103 switch(kernel_type)
104 {
105 case CLKernelType::GEMM:
106 {
107 return get_gemm_lws(gws_x, gws_y, gws_z);
108 }
109 case CLKernelType::DIRECT:
110 {
111 return get_direct_lws(gws_x, gws_y, gws_z);
112 }
113 case CLKernelType::WINOGRAD:
114 {
115 return get_winograd_lws(gws_x, gws_y, gws_z);
116 }
117 case CLKernelType::DEPTHWISE:
118 {
119 return get_dwc_lws(gws_x, gws_y, gws_z);
120 }
121 default:
122 {
123 return CLKernelLibrary::get().default_ndrange();
124 }
125 }
126 }
127 } // namespace arm_compute