| Pablo Tello | 7fad9b1 | 2018-03-14 17:55:27 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018 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 | #ifndef __ARM_COMPUTE_RUNTIME_CPU_UTILS_H__ |
| 25 | #define __ARM_COMPUTE_RUNTIME_CPU_UTILS_H__ |
| 26 | |
| 27 | namespace arm_compute |
| 28 | { |
| 29 | class CPUInfo; |
| 30 | /** This function will try to detect the CPU configuration on the system and will fill |
| 31 | * the cpuinfo object accordingly to reflect this. |
| 32 | * |
| 33 | * @param[out] cpuinfo @ref CPUInfo to be used to hold the system's cpu configuration. |
| 34 | */ |
| 35 | void get_cpu_configuration(CPUInfo &cpuinfo); |
| 36 | /** Some systems have both big and small cores, this fuction computes the minimum number of cores |
| 37 | * that are exactly the same on the system. To maximize performance the library attempts to process |
| 38 | * workloads concurrently using as many threads as big cores are available on the system. |
| 39 | * |
| 40 | * @return The minumum number of common cores. |
| 41 | */ |
| 42 | unsigned int get_threads_hint(); |
| 43 | } |
| 44 | #endif /* __ARM_COMPUTE_RUNTIME_CPU_UTILS_H__ */ |