Program Listing for File NumaPolicy.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_NumaPolicy_HPP
#define UMPIRE_NumaPolicy_HPP
#include <vector>
#include "umpire/Allocator.hpp"
#include "umpire/strategy/AllocationStrategy.hpp"
namespace umpire {
namespace strategy {
/*!
* \brief Use NUMA interface to locate memory to a specific NUMA node.
*
* This AllocationStrategy provides a method of ensuring memory sits
* on a specific NUMA node. This can be used either for optimization,
* or for moving memory between the host and devices.
*/
class NumaPolicy : public AllocationStrategy {
public:
NumaPolicy(const std::string& name, int id, Allocator allocator,
int numa_node);
void* allocate(std::size_t bytes) override;
void deallocate(void* ptr) override;
Platform getPlatform() noexcept override;
MemoryResourceTraits getTraits() const noexcept override;
int getNode() const noexcept;
private:
strategy::AllocationStrategy* m_allocator;
Platform m_platform;
int m_node;
};
} // end of namespace strategy
} // end of namespace umpire
#endif // UMPIRE_NumaPolicy_HPP