Program Listing for File AllocationAdvisor.cpp¶
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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)
//////////////////////////////////////////////////////////////////////////////
#include "umpire/strategy/AllocationAdvisor.hpp"
#include "umpire/ResourceManager.hpp"
#include "umpire/op/MemoryOperationRegistry.hpp"
#if defined(UMPIRE_ENABLE_CUDA)
#include <cuda_runtime_api.h>
#endif
namespace umpire {
namespace strategy {
AllocationAdvisor::AllocationAdvisor(const std::string& name, int id,
Allocator allocator,
const std::string& advice_operation,
int device_id)
: AllocationAdvisor(name, id, allocator, advice_operation, allocator,
device_id)
{
}
AllocationAdvisor::AllocationAdvisor(const std::string& name, int id,
Allocator allocator,
const std::string& advice_operation,
Allocator accessing_allocator,
int device_id)
: AllocationStrategy(name, id),
m_allocator{allocator.getAllocationStrategy()},
m_device{device_id}
{
auto& op_registry = op::MemoryOperationRegistry::getInstance();
m_advice_operation =
op_registry.find(advice_operation, m_allocator, m_allocator);
#if defined(UMPIRE_ENABLE_CUDA)
if (accessing_allocator.getPlatform() == Platform::host) {
m_device = cudaCpuDeviceId;
}
#else
UMPIRE_USE_VAR(accessing_allocator);
#endif
}
void* AllocationAdvisor::allocate(std::size_t bytes)
{
void* ptr = m_allocator->allocate(bytes);
m_advice_operation->apply(ptr, nullptr, m_device, bytes);
return ptr;
}
void AllocationAdvisor::deallocate(void* ptr)
{
m_allocator->deallocate(ptr);
}
Platform AllocationAdvisor::getPlatform() noexcept
{
return m_allocator->getPlatform();
}
MemoryResourceTraits AllocationAdvisor::getTraits() const noexcept
{
return m_allocator->getTraits();
}
} // end of namespace strategy
} // end of namespace umpire