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// =================================================================================================
// 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 all the basic functionality for the BLAS routines. This class serves as a
// base class for the actual routines (e.g. Xaxpy, Xgemm). It contains common functionality such as
// compiling the OpenCL kernel, connecting to the database, etc.
//
// =================================================================================================
#ifndef CLBLAST_ROUTINE_H_
#define CLBLAST_ROUTINE_H_
#include <string>
#include <vector>
#include <unordered_map>
#include "utilities/utilities.hpp"
#include "cache.hpp"
#include "utilities/buffer_test.hpp"
#include "database/database.hpp"
#include "routines/common.hpp"
namespace clblast {
// =================================================================================================
// See comment at top of file for a description of the class
class Routine {
public:
// Base class constructor. The user database is an optional extra database to override the
// built-in database.
// All heavy preparation work is done inside this constructor.
// NOTE: the caller must provide the same userDatabase for each combination of device, precision
// and routine list, otherwise the caching logic will break.
explicit Routine(Queue &queue, EventPointer event, const std::string &name,
const std::vector<std::string> &routines, const Precision precision,
const std::vector<database::DatabaseEntry> &userDatabase,
std::initializer_list<const char *> source);
// List of kernel-routine look-ups
static const std::vector<std::string> routines_axpy;
static const std::vector<std::string> routines_dot;
static const std::vector<std::string> routines_ger;
static const std::vector<std::string> routines_gemv;
static const std::vector<std::string> routines_gemm;
static const std::vector<std::string> routines_gemm_syrk;
static const std::vector<std::string> routines_trsm;
static const std::unordered_map<std::string, const std::vector<std::string>> routines_by_kernel;
private:
// Initializes program_, fetching cached program or building one
void InitProgram(std::initializer_list<const char *> source);
// Initializes db_, fetching cached database or building one
void InitDatabase(const std::vector<database::DatabaseEntry> &userDatabase);
protected:
// Non-static variable for the precision
const Precision precision_;
// The routine's name and the corresponding kernels
const std::string routine_name_;
const std::vector<std::string> kernel_names_;
// The OpenCL objects, accessible only from derived classes
Queue queue_;
EventPointer event_;
const Context context_;
const Device device_;
// OpenCL device properties
const std::string device_name_;
// Compiled program (either retrieved from cache or compiled in slow path)
Program program_;
// Connection to the database for all the device-specific parameters
Databases db_;
};
// =================================================================================================
} // namespace clblast
// CLBLAST_ROUTINE_H_
#endif
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