umpire::alloc::PosixMemalignAllocator Struct Reference

Uses posix_memalign() and free() to allocate page-aligned memory. More...

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

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

Detailed Description

Uses posix_memalign() and free() to allocate page-aligned memory.

Member Function Documentation

allocate()

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

inline

Allocate bytes of memory using posix_memalign.

Parameters

bytes

Number of bytes to allocate. Does not have to be a multiple of the system page size.

Returns

Pointer to start of the allocation.

Exceptions

umpire::util::runtime_error

if memory cannot be allocated.

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

deallocate()

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

inline

Deallocate memory using free.

Parameters

ptr	Address to deallocate.

Exceptions

umpire::util::runtime_error

if memory cannot be free'd.

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

isAccessible()

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

inline