1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
// ----------------------------------------------------------------------------
// - Open3D: www.open3d.org -
// ----------------------------------------------------------------------------
// The MIT License (MIT)
//
// Copyright (c) 2018-2021 www.open3d.org
//
// 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.
// ----------------------------------------------------------------------------
#include "open3d/core/MemoryManager.h"
#include <benchmark/benchmark.h>
#include "open3d/core/CUDAUtils.h"
namespace open3d {
namespace core {
enum class MemoryManagerBackend { Direct, Cached };
std::shared_ptr<MemoryManagerDevice> MakeMemoryManager(
const Device& device, const MemoryManagerBackend& backend) {
std::shared_ptr<MemoryManagerDevice> device_mm;
switch (device.GetType()) {
case Device::DeviceType::CPU:
device_mm = std::make_shared<MemoryManagerCPU>();
break;
#ifdef BUILD_CUDA_MODULE
case Device::DeviceType::CUDA:
device_mm = std::make_shared<MemoryManagerCUDA>();
break;
#endif
default:
utility::LogError("Unimplemented device {}.", device.ToString());
break;
}
switch (backend) {
case MemoryManagerBackend::Direct:
return device_mm;
case MemoryManagerBackend::Cached:
return std::make_shared<MemoryManagerCached>(device_mm);
default:
utility::LogError("Unimplemented backend.");
break;
}
}
void Malloc(benchmark::State& state,
int size,
const Device& device,
const MemoryManagerBackend& backend) {
MemoryManagerCached::ReleaseCache(device);
auto device_mm = MakeMemoryManager(device, backend);
// Warmup.
{
void* ptr = device_mm->Malloc(size, device);
device_mm->Free(ptr, device);
cuda::Synchronize(device);
}
for (auto _ : state) {
void* ptr = device_mm->Malloc(size, device);
cuda::Synchronize(device);
state.PauseTiming();
device_mm->Free(ptr, device);
cuda::Synchronize(device);
state.ResumeTiming();
}
MemoryManagerCached::ReleaseCache(device);
}
void Free(benchmark::State& state,
int size,
const Device& device,
const MemoryManagerBackend& backend) {
MemoryManagerCached::ReleaseCache(device);
auto device_mm = MakeMemoryManager(device, backend);
// Warmup.
{
void* ptr = device_mm->Malloc(size, device);
device_mm->Free(ptr, device);
cuda::Synchronize(device);
}
for (auto _ : state) {
state.PauseTiming();
void* ptr = device_mm->Malloc(size, device);
cuda::Synchronize(device);
state.ResumeTiming();
device_mm->Free(ptr, device);
cuda::Synchronize(device);
}
MemoryManagerCached::ReleaseCache(device);
}
#define ENUM_BM_SIZE(FN, DEVICE, DEVICE_NAME, BACKEND) \
BENCHMARK_CAPTURE(FN, BACKEND##_100_##DEVICE_NAME, 100, DEVICE, BACKEND) \
->Unit(benchmark::kMicrosecond); \
BENCHMARK_CAPTURE(FN, BACKEND##_1000_##DEVICE_NAME, 1000, DEVICE, BACKEND) \
->Unit(benchmark::kMicrosecond); \
BENCHMARK_CAPTURE(FN, BACKEND##_10000_##DEVICE_NAME, 10000, DEVICE, \
BACKEND) \
->Unit(benchmark::kMicrosecond); \
BENCHMARK_CAPTURE(FN, BACKEND##_100000_##DEVICE_NAME, 100000, DEVICE, \
BACKEND) \
->Unit(benchmark::kMicrosecond); \
BENCHMARK_CAPTURE(FN, BACKEND##_1000000_##DEVICE_NAME, 1000000, DEVICE, \
BACKEND) \
->Unit(benchmark::kMicrosecond); \
BENCHMARK_CAPTURE(FN, BACKEND##_10000000_##DEVICE_NAME, 10000000, DEVICE, \
BACKEND) \
->Unit(benchmark::kMicrosecond); \
BENCHMARK_CAPTURE(FN, BACKEND##_100000000_##DEVICE_NAME, 100000000, \
DEVICE, BACKEND) \
->Unit(benchmark::kMicrosecond); \
BENCHMARK_CAPTURE(FN, BACKEND##_1000000000_##DEVICE_NAME, 1000000000, \
DEVICE, BACKEND) \
->Unit(benchmark::kMicrosecond);
#ifdef BUILD_CUDA_MODULE
#define ENUM_BM_BACKEND(FN) \
ENUM_BM_SIZE(FN, Device("CPU:0"), CPU, MemoryManagerBackend::Direct) \
ENUM_BM_SIZE(FN, Device("CPU:0"), CPU, MemoryManagerBackend::Cached) \
ENUM_BM_SIZE(FN, Device("CUDA:0"), CUDA, MemoryManagerBackend::Direct) \
ENUM_BM_SIZE(FN, Device("CUDA:0"), CUDA, MemoryManagerBackend::Cached)
#else
#define ENUM_BM_BACKEND(FN) \
ENUM_BM_SIZE(FN, Device("CPU:0"), CPU, MemoryManagerBackend::Direct) \
ENUM_BM_SIZE(FN, Device("CPU:0"), CPU, MemoryManagerBackend::Cached)
#endif
ENUM_BM_BACKEND(Malloc)
ENUM_BM_BACKEND(Free)
} // namespace core
} // namespace open3d
|
