umpire::alloc::CudaMallocManagedAllocator Struct Reference

Uses cudaMallocManaged and cudaFree to allocate and deallocate unified memory on NVIDIA GPUs. More...

#include </home/docs/checkouts/readthedocs.org/user_builds/umpire/checkouts/develop/src/umpire/alloc/CudaMallocManagedAllocator.hpp>

Public Member Functions
void *	allocate (std::size_t bytes)
	Allocate bytes of memory using cudaMallocManaged. More...
void	deallocate (void *ptr)
	Deallocate memory using cudaFree. More...
bool	isAccessible (Platform p)

Detailed Description

Uses cudaMallocManaged and cudaFree to allocate and deallocate unified memory on NVIDIA GPUs.

Member Function Documentation

allocate()

void* umpire::alloc::CudaMallocManagedAllocator::allocate ( std::size_t  bytes )

inline

Allocate bytes of memory using cudaMallocManaged.

Parameters

bytes

Number of bytes to allocate.

Returns

Pointer to start of the allocation.

Exceptions

umpire::util::runtime_error

if memory cannot be allocated.

References umpire::util::message::Debug, umpire::error(), UMPIRE_ERROR, and UMPIRE_LOG.

deallocate()

void umpire::alloc::CudaMallocManagedAllocator::deallocate ( void *  ptr )

inline

Deallocate memory using cudaFree.

Parameters

ptr	Address to deallocate.

Exceptions

umpire::util::runtime_error

if memory be free'd.

References umpire::util::message::Debug, umpire::error(), UMPIRE_ERROR, and UMPIRE_LOG.

isAccessible()

bool umpire::alloc::CudaMallocManagedAllocator::isAccessible ( Platform  p )

inline