kernel_cache.hpp

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/* ************************************************************************
 * Copyright 2015 Vratis, Ltd.
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 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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#ifndef GUARD_OLC_KERNEL_CACHE_HPP_
#define GUARD_OLC_KERNEL_CACHE_HPP_

#include <handle.hpp>
#include <kernel.hpp>
#include <simple_hash.hpp>
#include <string>
#include <unordered_map>
#include <vector>

namespace olCompile {

/**
 * @brief The KernelCache class Build and cache kernels
 *
 */
class KernelCache
{
    public:
    using Key        = std::pair<std::string, std::string>;
    using KernelMap  = std::unordered_map<Key, std::vector<Kernel>, SimpleHash>;
    using ProgramMap = std::unordered_map<Key, Program, SimpleHash>;

    Kernel AddKernel(const Handle& h,
                     const std::string& algorithm,
                     const std::string& network_config,
                     const std::string& program_name,
                     const std::string& kernel_name,
                     const std::vector<size_t>& vld,
                     const std::vector<size_t>& vgd,
                     std::string params      = "",
                     std::size_t cache_index = 0);

    void AddKernel(Key key, Kernel k, std::size_t cache_index);

    void ClearKernels(const std::string& algorithm, const std::string& network_config);

    const std::vector<Kernel>& GetKernels(const std::string& algorithm,
                                          const std::string& network_config);

    bool HasKernels(const std::string& algorithm, const std::string& network_config) const;

    bool HasProgram(const std::string& name, const std::string& params) const;

    void AddProgram(Program prog, const std::string& program_name, std::string params);

    KernelCache();

    private:
    KernelMap kernel_map;
    ProgramMap program_map;
};

} // namespace olCompile

#endif // GUARD_OLC_KERNEL_CACHE_HPP_