Program Listing for File AmAllocAllocator.hpp¶
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//////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2018-2019, Lawrence Livermore National Security, LLC.
// Produced at the Lawrence Livermore National Laboratory
//
// Created by David Beckingsale, david@llnl.gov
// LLNL-CODE-747640
//
// All rights reserved.
//
// This file is part of Umpire.
//
// For details, see https://github.com/LLNL/Umpire
// Please also see the LICENSE file for MIT license.
//////////////////////////////////////////////////////////////////////////////
#ifndef UMPIRE_AmAllocAllocator_HPP
#define UMPIRE_AmAllocAllocator_HPP
#include <hc_am.hpp>
namespace umpire {
namespace alloc {
/*!
* \brief Uses hcAlloc and hcAlloc to allocate and deallocate memory on
* AMD GPUs that support ROCm.
*/
struct AmAllocAllocator {
/*!
* \brief Allocate bytes of memory using hcAlloc
*
* \param bytes Number of bytes to allocate.
* \return Pointer to start of the allocation.
*
* \throws umpire::util::Exception if memory cannot be allocated.
*/
void* allocate(size_t bytes)
{
/* Default accelerator */
hc::accelerator acc;
void* ret = hc::am_alloc(bytes, acc, 0);
UMPIRE_LOG(Debug, "(size=" << bytes << ") returning " << ret);
if (ret == nullptr) {
UMPIRE_ERROR("hc::am_alloc(bytes = " << bytes << ") failed");
} else {
return ret;
}
}
/*!
* \brief Deallocate memory using hcFree.
*
* \param ptr Address to deallocate.
*
* \throws umpire::util::Exception if memory cannot be free'd.
*/
void deallocate(void* ptr)
{
UMPIRE_LOG(Debug, "(ptr=" << ptr << ")");
auto status = hc::am_free(ptr);
}
};
} // end of namespace alloc
} // end of namespace umpire
#endif // UMPIRE_AmAllocAllocator_HPP