Program Listing for File AllocationPrefetcher.hpp¶
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//////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2016-20, Lawrence Livermore National Security, LLC and Umpire
// project contributors. See the COPYRIGHT file for details.
//
// SPDX-License-Identifier: (MIT)
//////////////////////////////////////////////////////////////////////////////
#ifndef UMPIRE_AllocationPrefetcher_HPP
#define UMPIRE_AllocationPrefetcher_HPP
#include <memory>
#include "umpire/strategy/AllocationStrategy.hpp"
#include "umpire/Allocator.hpp"
#include "umpire/op/MemoryOperation.hpp"
namespace umpire {
namespace strategy {
/*!
*
* \brief Apply the appropriate "PREFETCH" operation to every allocation.
*/
class AllocationPrefetcher :
public AllocationStrategy
{
public:
AllocationPrefetcher(
const std::string& name,
int id,
Allocator allocator,
int device_id = 0);
void* allocate(std::size_t bytes);
void deallocate(void* ptr);
std::size_t getCurrentSize() const noexcept;
std::size_t getHighWatermark() const noexcept;
Platform getPlatform() noexcept;
private:
std::shared_ptr<op::MemoryOperation> m_prefetch_operation;
strategy::AllocationStrategy* m_allocator;
int m_device;
};
} // end of namespace strategy
} // end namespace umpire
#endif // UMPIRE_AllocationPrefetcher_HPP