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
|
// =================================================================================================
// 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, providing a static variable holding the actual database
// information. The class also provides utility functions to search the database and to access a
// found entry by parameter-key. The database itself is filled in the corresponding source-file and
// partially also by the database/xxxxx.h files, in which kernel-specific parameters are found.
//
// =================================================================================================
#ifndef CLBLAST_DATABASE_H_
#define CLBLAST_DATABASE_H_
#include <string>
#include <vector>
#include <unordered_map>
#include "internal/utilities.h"
namespace clblast {
// =================================================================================================
// See comment at top of file for a description of the class
class Database {
public:
// Type alias for the database parameters
using Parameters = std::unordered_map<std::string,size_t>;
// Structures for content inside the database
struct DatabaseDevice {
const std::string name;
const Parameters parameters;
};
struct DatabaseVendor {
const cl_device_type type;
const std::string name;
const std::vector<DatabaseDevice> devices;
};
struct DatabaseEntry {
const std::string kernel;
const Precision precision;
const std::vector<DatabaseVendor> vendors;
};
// The default vendor or device
static constexpr auto kDefault = "Default";
// The database consists of separate database entries, stored together in a vector
static const DatabaseEntry XaxpySingle, XaxpyDouble, XaxpyComplexSingle, XaxpyComplexDouble;
static const DatabaseEntry XgemmSingle, XgemmDouble, XgemmComplexSingle, XgemmComplexDouble;
static const DatabaseEntry CopySingle, CopyDouble, CopyComplexSingle, CopyComplexDouble;
static const DatabaseEntry PadSingle, PadDouble, PadComplexSingle, PadComplexDouble;
static const DatabaseEntry TraSingle, TraDouble, TraComplexSingle, TraComplexDouble;
static const DatabaseEntry PadTraSingle, PadTraDouble, PadTraComplexSingle, PadTraComplexDouble;
static const std::vector<DatabaseEntry> database;
// The constructor
explicit Database(const CommandQueue &queue, const std::vector<std::string> &routines,
const Precision precision);
// Accessor of values by key
size_t operator[](const std::string key) const { return parameters_.find(key)->second; }
// Obtain a list of OpenCL pre-processor defines based on the parameters
std::string GetDefines() const;
private:
Parameters Search(const std::string &this_kernel, const cl_device_type this_type,
const std::string &this_vendor, const std::string &this_device,
const Precision this_precision) const;
// Tests equality between a database-vendor string and an OpenCL vendor string
bool VendorEqual(const std::string &db_vendor, const std::string &cl_vendor) const;
// Found parameters suitable for this device/kernel
Parameters parameters_;
};
// =================================================================================================
} // namespace clblast
// CLBLAST_DATABASE_H_
#endif
|
