1 /*
2 * Copyright (c) 2017-2021 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 "arm_compute/runtime/SingleThreadScheduler.h"
25
26 #include "arm_compute/core/CPP/ICPPKernel.h"
27 #include "arm_compute/core/Error.h"
28 #include "arm_compute/core/Utils.h"
29
30 namespace arm_compute
31 {
set_num_threads(unsigned int num_threads)32 void SingleThreadScheduler::set_num_threads(unsigned int num_threads)
33 {
34 ARM_COMPUTE_UNUSED(num_threads);
35 ARM_COMPUTE_ERROR_ON(num_threads != 1);
36 }
37
schedule(ICPPKernel * kernel,const Hints & hints)38 void SingleThreadScheduler::schedule(ICPPKernel *kernel, const Hints &hints)
39 {
40 const Window &max_window = kernel->window();
41
42 if(hints.split_dimension() != IScheduler::split_dimensions_all)
43 {
44 const unsigned int num_iterations = max_window.num_iterations(hints.split_dimension());
45 if(num_iterations < 1)
46 {
47 return;
48 }
49 }
50
51 ThreadInfo info;
52 info.cpu_info = &cpu_info();
53 kernel->run(kernel->window(), info);
54 }
55
schedule_op(ICPPKernel * kernel,const Hints & hints,const Window & window,ITensorPack & tensors)56 void SingleThreadScheduler::schedule_op(ICPPKernel *kernel, const Hints &hints, const Window &window, ITensorPack &tensors)
57 {
58 ARM_COMPUTE_UNUSED(hints);
59 ThreadInfo info;
60 info.cpu_info = &cpu_info();
61 kernel->run_op(tensors, window, info);
62 }
63
run_workloads(std::vector<Workload> & workloads)64 void SingleThreadScheduler::run_workloads(std::vector<Workload> &workloads)
65 {
66 ThreadInfo info;
67 info.cpu_info = &cpu_info();
68 for(auto &wl : workloads)
69 {
70 wl(info);
71 }
72 }
num_threads() const73 unsigned int SingleThreadScheduler::num_threads() const
74 {
75 return 1;
76 }
77 } // namespace arm_compute
78