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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
// =================================================================================================
// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
// width of 100 characters per line.
//
// Author(s):
// Cedric Nugteren <www.cedricnugteren.nl>
//
// This file implements the Database class (see the header for information about the class).
//
// =================================================================================================
#include <list>
#include "utilities/utilities.hpp"
#include "database/database.hpp"
#include "database/kernels/xaxpy/xaxpy.hpp"
#include "database/kernels/xdot/xdot.hpp"
#include "database/kernels/xgemv/xgemv.hpp"
#include "database/kernels/xgemv_fast/xgemv_fast.hpp"
#include "database/kernels/xgemv_fast_rot/xgemv_fast_rot.hpp"
#include "database/kernels/xger/xger.hpp"
#include "database/kernels/xgemm/xgemm.hpp"
#include "database/kernels/xgemm_direct/xgemm_direct.hpp"
#include "database/kernels/copy/copy.hpp"
#include "database/kernels/pad/pad.hpp"
#include "database/kernels/transpose/transpose.hpp"
#include "database/kernels/padtranspose/padtranspose.hpp"
#include "database/kernels/xtrsv.hpp"
#include "database/kernels/invert.hpp"
#include "database/apple_cpu_fallback.hpp"
#include "database/kernel_selection.hpp"
namespace clblast {
// =================================================================================================
namespace database {
extern const DatabaseEntry CopyHalf;
}
// Initializes the databases
const std::vector<database::DatabaseEntry> Database::database = std::vector<database::DatabaseEntry>{
database::XaxpyHalf, database::XaxpySingle, database::XaxpyDouble, database::XaxpyComplexSingle, database::XaxpyComplexDouble,
database::XdotHalf, database::XdotSingle, database::XdotDouble, database::XdotComplexSingle, database::XdotComplexDouble,
database::XgemvHalf, database::XgemvSingle, database::XgemvDouble, database::XgemvComplexSingle, database::XgemvComplexDouble,
database::XgemvFastHalf, database::XgemvFastSingle, database::XgemvFastDouble, database::XgemvFastComplexSingle, database::XgemvFastComplexDouble,
database::XgemvFastRotHalf, database::XgemvFastRotSingle, database::XgemvFastRotDouble, database::XgemvFastRotComplexSingle, database::XgemvFastRotComplexDouble,
database::XgerHalf, database::XgerSingle, database::XgerDouble, database::XgerComplexSingle, database::XgerComplexDouble,
database::XtrsvHalf, database::XtrsvSingle, database::XtrsvDouble, database::XtrsvComplexSingle, database::XtrsvComplexDouble,
database::XgemmHalf, database::XgemmSingle, database::XgemmDouble, database::XgemmComplexSingle, database::XgemmComplexDouble,
database::XgemmDirectHalf, database::XgemmDirectSingle, database::XgemmDirectDouble, database::XgemmDirectComplexSingle, database::XgemmDirectComplexDouble,
database::CopyHalf, database::CopySingle, database::CopyDouble, database::CopyComplexSingle, database::CopyComplexDouble,
database::PadHalf, database::PadSingle, database::PadDouble, database::PadComplexSingle, database::PadComplexDouble,
database::TransposeHalf, database::TransposeSingle, database::TransposeDouble, database::TransposeComplexSingle, database::TransposeComplexDouble,
database::PadtransposeHalf, database::PadtransposeSingle, database::PadtransposeDouble, database::PadtransposeComplexSingle, database::PadtransposeComplexDouble,
database::InvertHalf, database::InvertSingle, database::InvertDouble, database::InvertComplexSingle, database::InvertComplexDouble,
database::KernelSelectionHalf, database::KernelSelectionSingle, database::KernelSelectionDouble, database::KernelSelectionComplexSingle, database::KernelSelectionComplexDouble
};
const std::vector<database::DatabaseEntry> Database::apple_cpu_fallback = std::vector<database::DatabaseEntry>{
database::XaxpyApple, database::XdotApple,
database::XgemvApple, database::XgemvFastApple, database::XgemvFastRotApple, database::XgerApple, database::XtrsvApple,
database::XgemmApple, database::XgemmDirectApple,
database::CopyApple, database::PadApple, database::TransposeApple, database::PadtransposeApple,
database::InvertApple
};
// The default values
const std::string Database::kDeviceVendorAll = "default";
// Alternative names for some OpenCL vendors
const std::unordered_map<std::string, std::string> Database::kVendorNames{
{ "Intel(R) Corporation", "Intel" },
{ "GenuineIntel", "Intel" },
{ "Advanced Micro Devices, Inc.", "AMD" },
{ "NVIDIA Corporation", "NVIDIA" },
};
// =================================================================================================
// Constructor, computing device properties and populating the parameter-vector from the database.
// This takes an optional overlay database in case of custom tuning or custom kernels.
Database::Database(const Device &device, const std::string &kernel_name,
const Precision precision, const std::vector<database::DatabaseEntry> &overlay):
parameters_(std::make_shared<database::Parameters>()) {
// Finds information of the current device
auto device_type = device.Type();
auto device_vendor = device.Vendor();
auto device_name = device.Name();
// Set the short vendor name
for (auto &combination : kVendorNames) {
if (device_vendor == combination.first) {
device_vendor = combination.second;
}
}
// Sets the databases to search through
auto databases = std::list<std::vector<database::DatabaseEntry>>{overlay, database};
// Special case: modifies the database if the device is a CPU with Apple OpenCL
#if defined(__APPLE__) || defined(__MACOSX)
if (device.Type() == "CPU") {
auto extensions = device.Capabilities();
const auto is_apple = (extensions.find("cl_APPLE_SetMemObjectDestructor") == std::string::npos) ? false : true;
if (is_apple) {
databases.push_front(apple_cpu_fallback);
}
}
#endif
// Searches potentially multiple databases
auto search_result = database::Parameters();
for (auto &db: databases) {
search_result = Search(kernel_name, device_type, device_vendor, device_name, precision, db);
if (search_result.size() != 0) {
parameters_->insert(search_result.begin(), search_result.end());
break;
}
}
if (search_result.size() == 0) { throw RuntimeErrorCode(StatusCode::kDatabaseError); }
}
// =================================================================================================
// Returns a list of OpenCL pre-processor defines in string form
std::string Database::GetDefines() const {
std::string defines{};
for (auto ¶meter: *parameters_) {
defines += "#define "+parameter.first+" "+ToString(parameter.second)+"\n";
}
return defines;
}
// Retrieves the names of all the parameters
std::vector<std::string> Database::GetParameterNames() const {
auto parameter_names = std::vector<std::string>();
for (auto ¶meter: *parameters_) {
parameter_names.push_back(parameter.first);
}
return parameter_names;
}
// =================================================================================================
// Searches a particular database for the right kernel and precision
database::Parameters Database::Search(const std::string &this_kernel,
const std::string &this_type,
const std::string &this_vendor,
const std::string &this_device,
const Precision this_precision,
const std::vector<database::DatabaseEntry> &this_database) const {
// Selects the right kernel
for (auto &db: this_database) {
if ((db.kernel == this_kernel) &&
(db.precision == this_precision || db.precision == Precision::kAny)) {
// Searches for the right vendor and device type, or selects the default if unavailable
const auto parameters = SearchVendorAndType(this_vendor, this_type, this_device,
db.vendors, db.parameter_names);
if (parameters.size() != 0) { return parameters; }
return SearchVendorAndType(kDeviceVendorAll, database::kDeviceTypeAll, this_device,
db.vendors, db.parameter_names);
}
}
// If we reached this point, the entry was not found in this database
return database::Parameters();
}
database::Parameters Database::SearchVendorAndType(const std::string &target_vendor,
const std::string &target_type,
const std::string &this_device,
const std::vector<database::DatabaseVendor> &vendors,
const std::vector<std::string> ¶meter_names) const {
for (auto &vendor: vendors) {
if ((vendor.name == target_vendor) && (vendor.type == target_type)) {
// Searches the device; if unavailable, returns the vendor's default parameters
const auto parameters = SearchDevice(this_device, vendor.devices, parameter_names);
if (parameters.size() != 0) { return parameters; }
return SearchDevice("default", vendor.devices, parameter_names);
}
}
return database::Parameters();
}
database::Parameters Database::SearchDevice(const std::string &target_device,
const std::vector<database::DatabaseDevice> &devices,
const std::vector<std::string> ¶meter_names) const {
for (auto &device: devices) {
if (device.name == target_device) {
// Sets the parameters accordingly
auto parameters = database::Parameters();
if (parameter_names.size() != device.parameters.size()) { return database::Parameters(); } // ERROR
for (auto i = size_t{0}; i < parameter_names.size(); ++i) {
parameters[parameter_names[i]] = device.parameters[i];
}
return parameters;
}
}
return database::Parameters();
}
// =================================================================================================
} // namespace clblast
|
