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author | Matthew Bentham <Matthew.Bentham@arm.com> | 2019-06-21 17:22:23 +0100 |
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committer | Matthew Bentham <matthew.bentham@arm.com> | 2019-07-04 09:10:46 +0000 |
commit | 7c1603a4e310c5b7b0d3bdddc0c80a63a7661107 (patch) | |
tree | 9be52766d80394d253b2b51f4ef8fd136272cf6e /src/backends/reference/RefMemoryManager.cpp | |
parent | f9ac3fd5676565b1065698158f8d54a27f24981c (diff) | |
download | armnn-7c1603a4e310c5b7b0d3bdddc0c80a63a7661107.tar.gz |
IVGCVSW-3307 Add RefMemoryManager
Simple pool memory manager for use in the reference backend,
in order to make the backend usable for testing large networks.
Change-Id: I5694da29052c60f95b57da595c64cc114d75b8ba
Signed-off-by: Matthew Bentham <Matthew.Bentham@arm.com>
Diffstat (limited to 'src/backends/reference/RefMemoryManager.cpp')
-rw-r--r-- | src/backends/reference/RefMemoryManager.cpp | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/backends/reference/RefMemoryManager.cpp b/src/backends/reference/RefMemoryManager.cpp new file mode 100644 index 0000000000..0f4a289807 --- /dev/null +++ b/src/backends/reference/RefMemoryManager.cpp @@ -0,0 +1,100 @@ +// +// Copyright © 2017 Arm Ltd. All rights reserved. +// SPDX-License-Identifier: MIT +// +#include "RefMemoryManager.hpp" + +#include <boost/assert.hpp> + +namespace armnn +{ + +RefMemoryManager::RefMemoryManager() +{} + +RefMemoryManager::~RefMemoryManager() +{} + +RefMemoryManager::Pool* RefMemoryManager::Manage(unsigned int numBytes) +{ + if (!m_FreePools.empty()) + { + Pool* res = m_FreePools.back(); + m_FreePools.pop_back(); + res->Reserve(numBytes); + return res; + } + else + { + m_Pools.push_front(Pool(numBytes)); + return &m_Pools.front(); + } +} + +void RefMemoryManager::Allocate(RefMemoryManager::Pool* pool) +{ + BOOST_ASSERT(pool); + m_FreePools.push_back(pool); +} + +void* RefMemoryManager::GetPointer(RefMemoryManager::Pool* pool) +{ + return pool->GetPointer(); +} + +void RefMemoryManager::Acquire() +{ + for (Pool &pool: m_Pools) + { + pool.Acquire(); + } +} + +void RefMemoryManager::Release() +{ + for (Pool &pool: m_Pools) + { + pool.Release(); + } +} + +RefMemoryManager::Pool::Pool(unsigned int numBytes) + : m_Size(numBytes), + m_Pointer(nullptr) +{} + +RefMemoryManager::Pool::~Pool() +{ + if (m_Pointer) + { + Release(); + } +} + +void* RefMemoryManager::Pool::GetPointer() +{ + BOOST_ASSERT_MSG(m_Pointer, "RefMemoryManager::Pool::GetPointer() called when memory not acquired"); + return m_Pointer; +} + +void RefMemoryManager::Pool::Reserve(unsigned int numBytes) +{ + BOOST_ASSERT_MSG(!m_Pointer, "RefMemoryManager::Pool::Reserve() cannot be called after memory acquired"); + m_Size = std::max(m_Size, numBytes); +} + +void RefMemoryManager::Pool::Acquire() +{ + BOOST_ASSERT_MSG(!m_Pointer, "RefMemoryManager::Pool::Acquire() called when memory already acquired"); + BOOST_ASSERT(m_Size >= 0); + m_Pointer = ::operator new(size_t(m_Size)); +} + +void RefMemoryManager::Pool::Release() +{ + BOOST_ASSERT_MSG(m_Pointer, "RefMemoryManager::Pool::Release() called when memory not acquired"); + ::operator delete(m_Pointer); + m_Pointer = nullptr; +} + +} |