onert::backend::basic::DynamicMemoryManager Class Reference

#include <MemoryManager.h>

Public Member Functions
	DynamicMemoryManager ()=default
virtual	~DynamicMemoryManager ()=default
std::shared_ptr< Allocator >	allocate (const ITensor *tensor, uint32_t capacity)
void	deallocate (const ITensor *tensor)
void	deallocate (void)

Detailed Description

Definition at line 56 of file MemoryManager.h.

Constructor & Destructor Documentation

DynamicMemoryManager()

onert::backend::basic::DynamicMemoryManager::DynamicMemoryManager ( )

default

~DynamicMemoryManager()

virtual onert::backend::basic::DynamicMemoryManager::~DynamicMemoryManager ( )

virtualdefault

Member Function Documentation

allocate()

std::shared_ptr< basic::Allocator > onert::backend::basic::DynamicMemoryManager::allocate	(	const ITensor *	tensor,
		uint32_t	capacity
	)

Definition at line 71 of file MemoryManager.cc.

{
  auto find = _mem_alloc_map.find(tensor);
  if (find != _mem_alloc_map.end())
    throw std::runtime_error("Cannot allocate memory for a tensor. It was already allocated.");
 
  _mem_alloc_map[tensor] = std::make_shared<basic::Allocator>(capacity);
  return _mem_alloc_map[tensor];
}

Referenced by onert::backend::basic::Tensor::applyShape(), and onert::backend::builtin::kernel::WhileLayer::run().

deallocate() [1/2]

void onert::backend::basic::DynamicMemoryManager::deallocate

(

const ITensor *

tensor

)

Definition at line 82 of file MemoryManager.cc.

{
  auto find = _mem_alloc_map.find(tensor);
  if (find == _mem_alloc_map.end())
    throw std::runtime_error("Cannot find Allocator for the requested index");
 
  find->second->release();    // explicitly erase memory
  _mem_alloc_map.erase(find); // remove tensor and alloc
}

Referenced by onert::backend::basic::Tensor::applyShape(), onert::backend::basic::Tensor::deallocBuffer(), and onert::backend::builtin::kernel::WhileLayer::run().

deallocate() [2/2]

void onert::backend::basic::DynamicMemoryManager::deallocate

(

void

)

Definition at line 92 of file MemoryManager.cc.

{
  for (auto &&mem_alloc : _mem_alloc_map)
  {
    // Release memory buffer of mem_alloc
    mem_alloc.second->release();
  }
 
  _mem_alloc_map.clear();
}

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

• runtime/onert/core/include/backend/basic/MemoryManager.h
• runtime/onert/core/src/backend/basic/MemoryManager.cc