mfem::MemoryManager Class Reference

#include <mem_manager.hpp>

Public Member Functions
	MemoryManager ()
	~MemoryManager ()
void	Init ()
	Initialize the memory manager.
void	Configure (const MemoryType h_mt, const MemoryType d_mt)
	Configure the Memory manager with given default host and device types. This method will be called when configuring a device.
void	Destroy ()
	Free all the device memories.
bool	IsKnown (const void *h_ptr)
	Return true if the pointer is known by the memory manager.
bool	IsAlias (const void *h_ptr)
	Return true if the pointer is known by the memory manager as an alias.
void	RegisterCheck (void *h_ptr)
	Check if the host pointer has been registered in the memory manager.
int	PrintPtrs (std::ostream &out=mfem::out)
int	PrintAliases (std::ostream &out=mfem::out)
	__attribute__ ((used)) inline static void *__enzyme_allocation_like1[4]
	__attribute__ ((used)) inline static void *__enzyme_allocation_like2[4]

Static Public Member Functions
static MemoryType	GetDualMemoryType (MemoryType mt)
	Return the dual MemoryType of the given one, mt.
static void	SetDualMemoryType (MemoryType mt, MemoryType dual_mt)
	Set the dual memory type of mt to be dual_mt.
static void	SetUmpireHostAllocatorName (const char *h_name)
	Set the host Umpire allocator name used with MemoryType::HOST_UMPIRE.
static void	SetUmpireDeviceAllocatorName (const char *d_name)
	Set the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE.
static void	SetUmpireDevice2AllocatorName (const char *d_name)
	Set the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE_2.
static const char *	GetUmpireHostAllocatorName ()
	Get the host Umpire allocator name used with MemoryType::HOST_UMPIRE.
static const char *	GetUmpireDeviceAllocatorName ()
	Get the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE.
static const char *	GetUmpireDevice2AllocatorName ()
	Get the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE_2.
static MemoryType	GetHostMemoryType ()
static MemoryType	GetDeviceMemoryType ()
static void	myfree (void *mem, MemoryType MT, unsigned &flags)

Friends
template<typename T >
class	Memory

Detailed Description

The MFEM memory manager class. Host-side pointers are inserted into this manager which keeps track of the associated device pointer, and where the data currently resides.

Definition at line 607 of file mem_manager.hpp.

Constructor & Destructor Documentation

MemoryManager()

mfem::MemoryManager::MemoryManager

(

)

Definition at line 1585 of file mem_manager.cpp.

~MemoryManager()

mfem::MemoryManager::~MemoryManager

(

)

Definition at line 1587 of file mem_manager.cpp.

Member Function Documentation

__attribute__() [1/2]

mfem::MemoryManager::__attribute__

(

(used)

)

__attribute__() [2/2]

mfem::MemoryManager::__attribute__

(

(used)

)

Configure()

void mfem::MemoryManager::Configure	(	const MemoryType	h_mt,
		const MemoryType	d_mt )

Configure the Memory manager with given default host and device types. This method will be called when configuring a device.

The host and device MemoryTypes, h_mt and d_mt, are set to be dual to each other.

Definition at line 1620 of file mem_manager.cpp.

Destroy()

void mfem::MemoryManager::Destroy

(

)

Free all the device memories.

Definition at line 1639 of file mem_manager.cpp.

GetDeviceMemoryType()

static MemoryType mfem::MemoryManager::GetDeviceMemoryType ( )

inlinestatic

Definition at line 862 of file mem_manager.hpp.

GetDualMemoryType()

static MemoryType mfem::MemoryManager::GetDualMemoryType ( MemoryType mt )

inlinestatic

Return the dual MemoryType of the given one, mt.

The default dual memory types are:

memory type	dual type
HOST	DEVICE
HOST_32	DEVICE
HOST_64	DEVICE
HOST_DEBUG	DEVICE_DEBUG
HOST_UMPIRE	DEVICE_UMPIRE
HOST_PINNED	DEVICE
MANAGED	MANAGED
DEVICE	HOST
DEVICE_DEBUG	HOST_DEBUG
DEVICE_UMPIRE	HOST_UMPIRE
DEVICE_UMPIRE_2	HOST_UMPIRE

The dual types can be modified before device configuration using the method SetDualMemoryType() or by calling Device::SetMemoryTypes().

Definition at line 805 of file mem_manager.hpp.

GetHostMemoryType()

static MemoryType mfem::MemoryManager::GetHostMemoryType ( )

inlinestatic

Definition at line 861 of file mem_manager.hpp.

GetUmpireDevice2AllocatorName()

static const char * mfem::MemoryManager::GetUmpireDevice2AllocatorName ( )

inlinestatic

Get the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE_2.

Definition at line 838 of file mem_manager.hpp.

GetUmpireDeviceAllocatorName()

static const char * mfem::MemoryManager::GetUmpireDeviceAllocatorName ( )

inlinestatic

Get the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE.

Definition at line 836 of file mem_manager.hpp.

GetUmpireHostAllocatorName()

static const char * mfem::MemoryManager::GetUmpireHostAllocatorName ( )

inlinestatic

Get the host Umpire allocator name used with MemoryType::HOST_UMPIRE.

Definition at line 834 of file mem_manager.hpp.

Init()

void mfem::MemoryManager::Init

(

)

Initialize the memory manager.

Definition at line 1576 of file mem_manager.cpp.

IsAlias()

bool mfem::MemoryManager::IsAlias ( const void * h_ptr )

inline

Return true if the pointer is known by the memory manager as an alias.

Definition at line 848 of file mem_manager.hpp.

IsKnown()

bool mfem::MemoryManager::IsKnown ( const void * h_ptr )

inline

Return true if the pointer is known by the memory manager.

Definition at line 845 of file mem_manager.hpp.

myfree()

static void mfem::MemoryManager::myfree ( void * mem, MemoryType MT, unsigned & flags )

inlinestatic

Definition at line 865 of file mem_manager.hpp.

PrintAliases()

int mfem::MemoryManager::PrintAliases

(

std::ostream &

out = mfem::out

)

Prints all aliases known by the memory manager returning the number of printed pointers

Definition at line 1700 of file mem_manager.cpp.

PrintPtrs()

int mfem::MemoryManager::PrintPtrs

(

std::ostream &

out = mfem::out

)

Prints all pointers known by the memory manager, returning the number of printed pointers

Definition at line 1685 of file mem_manager.cpp.

RegisterCheck()

void mfem::MemoryManager::RegisterCheck

(

void *

h_ptr

)

Check if the host pointer has been registered in the memory manager.

Definition at line 1674 of file mem_manager.cpp.

SetDualMemoryType()

void mfem::MemoryManager::SetDualMemoryType ( MemoryType mt, MemoryType dual_mt )

static

Set the dual memory type of mt to be dual_mt.

This method can only be called before configuration, i.e. before calling Configure(), which is typically done during Device construction.

One of the types must be a host MemoryType and the other must be a device MemoryType or both types must be the same host memory type. The latter case is only allowed for convenience in setting up pure host execution, so the actual dual is not updated.

Definition at line 1589 of file mem_manager.cpp.

SetUmpireDevice2AllocatorName()

static void mfem::MemoryManager::SetUmpireDevice2AllocatorName ( const char * d_name )

inlinestatic

Set the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE_2.

Definition at line 831 of file mem_manager.hpp.

SetUmpireDeviceAllocatorName()

static void mfem::MemoryManager::SetUmpireDeviceAllocatorName ( const char * d_name )

inlinestatic

Set the device Umpire allocator name used with MemoryType::DEVICE_UMPIRE.

Definition at line 829 of file mem_manager.hpp.

SetUmpireHostAllocatorName()

static void mfem::MemoryManager::SetUmpireHostAllocatorName ( const char * h_name )

inlinestatic

Set the host Umpire allocator name used with MemoryType::HOST_UMPIRE.

Definition at line 827 of file mem_manager.hpp.

Friends And Related Symbol Documentation

Memory

template<typename T >

friend class Memory

friend

Definition at line 614 of file mem_manager.hpp.

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The documentation for this class was generated from the following files:

• general/mem_manager.hpp
• general/mem_manager.cpp