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Diffstat (limited to 'src/backends/aclCommon/memory/OffsetLifetimeManager.cpp')
-rw-r--r-- | src/backends/aclCommon/memory/OffsetLifetimeManager.cpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/backends/aclCommon/memory/OffsetLifetimeManager.cpp b/src/backends/aclCommon/memory/OffsetLifetimeManager.cpp new file mode 100644 index 0000000000..d0174f893c --- /dev/null +++ b/src/backends/aclCommon/memory/OffsetLifetimeManager.cpp @@ -0,0 +1,62 @@ +// +// Copyright © 2017 Arm Ltd. All rights reserved. +// SPDX-License-Identifier: MIT +// +#include "OffsetLifetimeManager.hpp" +#include "OffsetMemoryPool.hpp" + +#include <arm_compute/runtime/IMemoryGroup.h> + +#include <numeric> + +#include <boost/assert.hpp> + +namespace armnn +{ + +OffsetLifetimeManager::OffsetLifetimeManager() + : m_BlobSize(0) +{ +} + +std::unique_ptr<arm_compute::IMemoryPool> OffsetLifetimeManager::create_pool(arm_compute::IAllocator* allocator) +{ + BOOST_ASSERT(allocator); + return std::make_unique<OffsetMemoryPool>(allocator, m_BlobSize); +} + +arm_compute::MappingType OffsetLifetimeManager::mapping_type() const +{ + return arm_compute::MappingType::OFFSETS; +} + +void OffsetLifetimeManager::update_blobs_and_mappings() +{ + BOOST_ASSERT(are_all_finalized()); + BOOST_ASSERT(_active_group); + + // Update blob size + size_t maxGroupSize = std::accumulate(std::begin(_free_blobs), std::end(_free_blobs), + static_cast<size_t>(0), [](size_t s, const Blob& b) + { + return s + b.max_size; + }); + m_BlobSize = std::max(m_BlobSize, maxGroupSize); + + // Calculate group mappings + auto& groupMappings = _active_group->mappings(); + size_t offset = 0; + for(auto& freeBlob : _free_blobs) + { + for(auto& boundElementId : freeBlob.bound_elements) + { + BOOST_ASSERT(_active_elements.find(boundElementId) != std::end(_active_elements)); + Element& boundElement = _active_elements[boundElementId]; + groupMappings[boundElement.handle] = offset; + } + offset += freeBlob.max_size; + BOOST_ASSERT(offset <= m_BlobSize); + } +} + +} // namespace armnn
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