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103 lines
4 KiB
C++
103 lines
4 KiB
C++
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// =================================================================================================
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// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
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// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
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// width of 100 characters per line.
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//
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// Author(s):
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// Cedric Nugteren <www.cedricnugteren.nl>
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//
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// This file implements the Database class, providing a static variable holding the actual database
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// information. The class also provides utility functions to search the database and to access a
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// found entry by parameter-key. The database itself is filled in the corresponding source-file and
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// partially also by the database/xxxxx.h files, in which kernel-specific parameters are found.
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//
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// =================================================================================================
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#ifndef CLBLAST_DATABASE_H_
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#define CLBLAST_DATABASE_H_
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#include <string>
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#include <vector>
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#include <unordered_map>
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#include "internal/utilities.h"
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namespace clblast {
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// =================================================================================================
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// See comment at top of file for a description of the class
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class Database {
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public:
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// Type alias for the database parameters
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using Parameters = std::unordered_map<std::string,size_t>;
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// Structures for content inside the database
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struct DatabaseDevice {
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const std::string name;
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const Parameters parameters;
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};
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struct DatabaseVendor {
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const std::string type;
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const std::string name;
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const std::vector<DatabaseDevice> devices;
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};
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struct DatabaseEntry {
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const std::string kernel;
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const Precision precision;
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const std::vector<DatabaseVendor> vendors;
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};
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// The OpenCL device types
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static constexpr auto kDeviceTypeCPU = "CPU";
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static constexpr auto kDeviceTypeGPU = "GPU";
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static constexpr auto kDeviceTypeAccelerator = "accelerator";
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static constexpr auto kDeviceTypeAll = "default";
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// The OpenCL device vendors
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static constexpr auto kDeviceVendorNVIDIA = "NVIDIA Corporation";
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static constexpr auto kDeviceVendorAMD = "Advanced Micro Devices, Inc.";
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static constexpr auto kDeviceVendorIntel = "Intel";
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static constexpr auto kDeviceVendorAll = "default";
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// The OpenCL device names
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static constexpr auto kDefaultDevice = "default";
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// The database consists of separate database entries, stored together in a vector
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static const DatabaseEntry XaxpySingle, XaxpyDouble, XaxpyComplexSingle, XaxpyComplexDouble;
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static const DatabaseEntry XdotSingle, XdotDouble, XdotComplexSingle, XdotComplexDouble;
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static const DatabaseEntry XgemvSingle, XgemvDouble, XgemvComplexSingle, XgemvComplexDouble;
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static const DatabaseEntry XgemmSingle, XgemmDouble, XgemmComplexSingle, XgemmComplexDouble;
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static const DatabaseEntry CopySingle, CopyDouble, CopyComplexSingle, CopyComplexDouble;
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static const DatabaseEntry PadSingle, PadDouble, PadComplexSingle, PadComplexDouble;
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static const DatabaseEntry TraSingle, TraDouble, TraComplexSingle, TraComplexDouble;
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static const DatabaseEntry PadTraSingle, PadTraDouble, PadTraComplexSingle, PadTraComplexDouble;
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static const std::vector<DatabaseEntry> database;
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// The constructor
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explicit Database(const Queue &queue, const std::vector<std::string> &routines,
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const Precision precision);
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// Accessor of values by key
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size_t operator[](const std::string key) const { return parameters_.find(key)->second; }
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// Obtain a list of OpenCL pre-processor defines based on the parameters
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std::string GetDefines() const;
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private:
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Parameters Search(const std::string &this_kernel, const std::string &this_type,
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const std::string &this_vendor, const std::string &this_device,
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const Precision this_precision) const;
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// Found parameters suitable for this device/kernel
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Parameters parameters_;
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};
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// =================================================================================================
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} // namespace clblast
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// CLBLAST_DATABASE_H_
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#endif
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