Compute Library
 21.02
CPPTypes.cpp
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1 /*
2  * Copyright (c) 2018-2021 Arm Limited.
3  *
4  * SPDX-License-Identifier: MIT
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24 
26 
27 #include "arm_compute/core/Error.h"
28 
29 #if !defined(BARE_METAL)
30 #include <sched.h>
31 #endif /* defined(BARE_METAL) */
32 
33 using namespace arm_compute;
34 
35 void CPUInfo::set_fp16(const bool fp16)
36 {
37  _fp16 = fp16;
38 }
39 
40 void CPUInfo::set_dotprod(const bool dotprod)
41 {
42  _dotprod = dotprod;
43 }
44 
45 void CPUInfo::set_cpu_model(unsigned int cpuid, CPUModel model)
46 {
47  ARM_COMPUTE_ERROR_ON(cpuid >= _percpu.size());
48  if(_percpu.size() > cpuid)
49  {
50  _percpu[cpuid] = model;
51  }
52 }
53 
54 unsigned int CPUInfo::get_cpu_num() const
55 {
56  return _percpu.size();
57 }
58 bool CPUInfo::has_fp16() const
59 {
60  return _fp16;
61 }
62 
64 {
65  return _dotprod;
66 }
67 
68 CPUModel CPUInfo::get_cpu_model(unsigned int cpuid) const
69 {
70  if(cpuid < _percpu.size())
71  {
72  return _percpu[cpuid];
73  }
74  return CPUModel::GENERIC;
75 }
76 
77 unsigned int CPUInfo::get_L1_cache_size() const
78 {
79  return _L1_cache_size;
80 }
81 
82 void CPUInfo::set_L1_cache_size(unsigned int size)
83 {
84  _L1_cache_size = size;
85 }
86 
87 unsigned int CPUInfo::get_L2_cache_size() const
88 {
89  return _L2_cache_size;
90 }
91 
92 void CPUInfo::set_L2_cache_size(unsigned int size)
93 {
94  _L2_cache_size = size;
95 }
96 
97 void CPUInfo::set_cpu_num(unsigned int cpu_count)
98 {
99  _percpu.resize(cpu_count);
100 }
101 
103  : _percpu(1)
104 {
105  // The core library knows nothing about the CPUs so we set only 1 CPU to be generic.
106  // The runtime NESCheduler will initialise this vector with the correct CPU models.
107  // See void detect_cpus_configuration(CPUInfo &cpuinfo) in CPPUtils.h
108  _percpu[0] = CPUModel::GENERIC;
109 }
110 
112 {
113 #if defined(BARE_METAL) || defined(__APPLE__) || (!defined(__arm__) && !defined(__aarch64__))
114  return get_cpu_model(0);
115 #else /* defined(BARE_METAL) || defined(__APPLE__) || (!defined(__arm__) && !defined(__aarch64__)) */
116  return get_cpu_model(sched_getcpu());
117 #endif /* defined(BARE_METAL) || defined(__APPLE__) || (!defined(__arm__) && !defined(__aarch64__)) */
118 }
void set_L2_cache_size(unsigned int size)
Set the L2 cache size.
Definition: CPPTypes.cpp:92
CPUInfo()
Constructor.
Definition: CPPTypes.cpp:102
bool has_fp16() const
Checks if the cpu model supports fp16.
Definition: CPPTypes.cpp:58
#define ARM_COMPUTE_ERROR_ON(cond)
If the condition is true then an error message is printed and an exception thrown.
Definition: Error.h:466
CPUModel
CPU models - we only need to detect CPUs we have microarchitecture-specific code for.
Definition: CPPTypes.h:40
Copyright (c) 2017-2021 Arm Limited.
bool has_dotprod() const
Checks if the cpu model supports dot product.
Definition: CPPTypes.cpp:63
void set_cpu_model(unsigned int cpuid, CPUModel model)
Set the cpumodel for a given cpu core.
Definition: CPPTypes.cpp:45
unsigned int get_cpu_num() const
Return the maximum number of CPUs present.
Definition: CPPTypes.cpp:54
unsigned int get_L1_cache_size() const
Gets the L1 cache size.
Definition: CPPTypes.cpp:77
unsigned int get_L2_cache_size() const
Gets the L2 cache size.
Definition: CPPTypes.cpp:87
CPUModel get_cpu_model() const
Gets the current thread&#39;s cpu model.
Definition: CPPTypes.cpp:111
void set_L1_cache_size(unsigned int size)
Set the L1 cache size.
Definition: CPPTypes.cpp:82
void set_dotprod(const bool dotprod)
Set dot product support.
Definition: CPPTypes.cpp:40
void set_fp16(const bool fp16)
Set fp16 support.
Definition: CPPTypes.cpp:35
void set_cpu_num(unsigned int cpu_count)
Set max number of cpus.
Definition: CPPTypes.cpp:97