HiCR::backend::lpf::MemoryManager Class Reference

#include <memoryManager.hpp>

Inheritance diagram for HiCR::backend::lpf::MemoryManager:

Public Member Functions
	MemoryManager (lpf_t lpf)
__INLINE__ std::shared_ptr< HiCR::LocalMemorySlot >	registerLocalMemorySlotImpl (std::shared_ptr< HiCR::MemorySpace > memorySpace, void *const ptr, const size_t size) override
__INLINE__ void	deregisterLocalMemorySlotImpl (std::shared_ptr< HiCR::LocalMemorySlot > memorySlot) override
__INLINE__ std::shared_ptr< HiCR::LocalMemorySlot >	allocateLocalMemorySlotImpl (std::shared_ptr< HiCR::MemorySpace > memorySpace, const size_t size) override
__INLINE__ void	freeLocalMemorySlotImpl (std::shared_ptr< HiCR::LocalMemorySlot > memorySlot) override
Public Member Functions inherited from HiCR::MemoryManager
virtual	~MemoryManager ()=default
__INLINE__ std::shared_ptr< LocalMemorySlot >	allocateLocalMemorySlot (const std::shared_ptr< MemorySpace > &memorySpace, const size_t size)
virtual std::shared_ptr< LocalMemorySlot >	registerLocalMemorySlot (const std::shared_ptr< HiCR::MemorySpace > &memorySpace, void *const ptr, const size_t size)
__INLINE__ void	deregisterLocalMemorySlot (const std::shared_ptr< HiCR::LocalMemorySlot > &memorySlot)
__INLINE__ void	memset (const std::shared_ptr< HiCR::LocalMemorySlot > &memorySlot, int value, size_t size)
__INLINE__ void	freeLocalMemorySlot (const std::shared_ptr< HiCR::LocalMemorySlot > &memorySlot)

Additional Inherited Members
Protected Member Functions inherited from HiCR::MemoryManager
virtual void	memsetImpl (const std::shared_ptr< HiCR::LocalMemorySlot > memorySlot, int value, size_t size)
virtual void	freeLocalMemorySlotImpl (std::shared_ptr< HiCR::LocalMemorySlot > memorySlot)=0
virtual void	deregisterLocalMemorySlotImpl (std::shared_ptr< HiCR::LocalMemorySlot > memorySlot)=0

Detailed Description

Implementation of the LPF backend

The only LPF engine currently of interest is the IB Verbs engine (see above for branch and hash)

Constructor & Destructor Documentation

MemoryManager()

HiCR::backend::lpf::MemoryManager::MemoryManager ( lpf_t  lpf )

inline

Map of global slot id and MPI windows Constructor of the LPF memory manager

Parameters

[in]

lpf

LPF context

Note

The decision to resize memory register in the constructor is because this call requires lpf_sync to become effective. This makes it almost impossible to do local memory registrations with LPF. On the other hand, the resize message queue could also be locally made, and placed elsewhere.

Member Function Documentation

allocateLocalMemorySlotImpl()

__INLINE__ std::shared_ptr< HiCR::LocalMemorySlot > HiCR::backend::lpf::MemoryManager::allocateLocalMemorySlotImpl ( std::shared_ptr< HiCR::MemorySpace >  memorySpace, const size_t  size  )

inlineoverridevirtual

Allocates memory in the current memory space (whole system)

Parameters

[in]	memorySpace	Memory space in which to perform the allocation.
[in]	size	Size of the memory slot to create

Returns

The address of the newly allocated memory slot

Implements HiCR::MemoryManager.

deregisterLocalMemorySlotImpl()

__INLINE__ void HiCR::backend::lpf::MemoryManager::deregisterLocalMemorySlotImpl ( std::shared_ptr< HiCR::LocalMemorySlot >  memorySlot )

inlineoverride

De-registers a memory slot previously registered

Parameters

[in]

memorySlot

Pointer to the memory slot to deregister.

freeLocalMemorySlotImpl()

__INLINE__ void HiCR::backend::lpf::MemoryManager::freeLocalMemorySlotImpl ( std::shared_ptr< HiCR::LocalMemorySlot >  memorySlot )

inlineoverride

Frees up a local memory slot reserved from this memory space

Parameters

[in]

memorySlot

Local memory slot to free up. It becomes unusable after freeing.

registerLocalMemorySlotImpl()

__INLINE__ std::shared_ptr< HiCR::LocalMemorySlot > HiCR::backend::lpf::MemoryManager::registerLocalMemorySlotImpl ( std::shared_ptr< HiCR::MemorySpace >  memorySpace, void *const  ptr, const size_t  size  )

inlineoverridevirtual

Associates a pointer locally-allocated manually and creates a local memory slot with it

Parameters

[in]	ptr	Pointer to the local memory space
[in]	size	Size of the memory slot to register
[in]	memorySpace	The memory space onto which to register the new memory slot

Returns

A newly created memory slot

Implements HiCR::MemoryManager.

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

• /home/runner/work/HiCR/HiCR/include/hicr/backends/lpf/memoryManager.hpp