umpire::alloc::HipMallocManagedAllocator Struct Reference

Uses hipMallocManaged and hipFree to allocate and deallocate unified memory on AMD GPUs. More...

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

Inheritance diagram for umpire::alloc::HipMallocManagedAllocator:

Public Member Functions
void *	allocate (std::size_t bytes)
	Allocate bytes of memory using hipMallocManaged. More...
void	deallocate (void *ptr)
	Deallocate memory using hipFree. More...
bool	isAccessible (Platform p)
	HipAllocator ()
	HipAllocator (MemoryResourceTraits::granularity_type g)

Public Attributes
MemoryResourceTraits::granularity_type	m_granularity

Detailed Description

Uses hipMallocManaged and hipFree to allocate and deallocate unified memory on AMD GPUs.

Member Function Documentation

allocate()

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

inline

Allocate bytes of memory using hipMallocManaged.

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::MemoryResourceTraits::coarse_grained, umpire::util::message::Debug, umpire::error(), umpire::alloc::HipAllocator::m_granularity, UMPIRE_ERROR, and UMPIRE_LOG.

Referenced by umpire::resource::HipUnifiedMemoryResource::allocate().

deallocate()

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

inline

Deallocate memory using hipFree.

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.

Referenced by umpire::resource::HipUnifiedMemoryResource::deallocate().

isAccessible()

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

inline

HipAllocator() [1/2]

umpire::alloc::HipAllocator::HipAllocator

inline

HipAllocator() [2/2]

umpire::alloc::HipAllocator::HipAllocator

inline

Member Data Documentation

m_granularity

MemoryResourceTraits::granularity_type umpire::alloc::HipAllocator::m_granularity

inherited

Referenced by allocate(), umpire::alloc::HipPinnedAllocator::allocate(), and umpire::alloc::HipMallocAllocator::allocate().