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author | Pablo Tello <pablo.tello@arm.com> | 2018-03-14 17:55:27 +0000 |
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committer | Anthony Barbier <anthony.barbier@arm.com> | 2018-11-02 16:49:16 +0000 |
commit | 7fad9b1d00f3ee1488ba4038d1371f6ea219f8b7 (patch) | |
tree | ded71e1cfa8e0c085f8bce5dfc26a99786d60e52 /arm_compute/runtime/CPUUtils.h | |
parent | 1562be3e8a449360a90af75f6f1481a30d41be75 (diff) | |
download | ComputeLibrary-7fad9b1d00f3ee1488ba4038d1371f6ea219f8b7.tar.gz |
COMPMID-1021: CPUInfo refactoring.
Removed CPUTarget in favor of the CPUModel type.
CPUInfo now holds a vector of N CPUs.
CPUInfo autoinitialise upon construction with 1 GENERIC CPU.
CPPScheduler fills CPUInfo's vector upon construction (runtime).
IScheduler has a single CPUInfo obj and ThreadInfo always gets a pointer to it (avoid copying the vector)
Change-Id: I30f293258c959c87f6bac5eac8b963beb6a4d365
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/124626
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Diffstat (limited to 'arm_compute/runtime/CPUUtils.h')
-rw-r--r-- | arm_compute/runtime/CPUUtils.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arm_compute/runtime/CPUUtils.h b/arm_compute/runtime/CPUUtils.h new file mode 100644 index 0000000000..70211a5817 --- /dev/null +++ b/arm_compute/runtime/CPUUtils.h @@ -0,0 +1,44 @@ +/* + * Copyright (c) 2018 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef __ARM_COMPUTE_RUNTIME_CPU_UTILS_H__ +#define __ARM_COMPUTE_RUNTIME_CPU_UTILS_H__ + +namespace arm_compute +{ +class CPUInfo; +/** This function will try to detect the CPU configuration on the system and will fill + * the cpuinfo object accordingly to reflect this. + * + * @param[out] cpuinfo @ref CPUInfo to be used to hold the system's cpu configuration. + */ +void get_cpu_configuration(CPUInfo &cpuinfo); +/** Some systems have both big and small cores, this fuction computes the minimum number of cores + * that are exactly the same on the system. To maximize performance the library attempts to process + * workloads concurrently using as many threads as big cores are available on the system. + * + * @return The minumum number of common cores. + */ +unsigned int get_threads_hint(); +} +#endif /* __ARM_COMPUTE_RUNTIME_CPU_UTILS_H__ */ |