mirror of
https://github.com/facebookresearch/faiss.git
synced 2025-06-03 21:54:02 +08:00
afe0fdc161
Facebook sync (Mar 2019) - MatrixStats object - option to round coordinates during k-means optimization - alternative option for search in HNSW - moved stats and imbalance_factor of IndexIVF to InvertedLists object - range search for IVFScalarQuantizer - direct unit8 codec in ScalarQuantizer - renamed IndexProxy to IndexReplicas and moved to main Faiss - better support for PQ code assignment with external index - support for IMI2x16 (4B virtual centroids!) - support for k = 2048 search on GPU (instead of 1024) - most CUDA mem alloc failures throw exceptions instead of terminating on an assertion - support for renaming an ondisk invertedlists - interrupt computations with ctrl-C in python
79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD+Patents license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "DeviceMemory.h"
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#include "DeviceUtils.h"
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#include "../../FaissAssert.h"
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namespace faiss { namespace gpu {
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DeviceMemoryReservation::DeviceMemoryReservation()
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: state_(NULL),
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device_(0),
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data_(NULL),
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size_(0),
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stream_(0) {
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}
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DeviceMemoryReservation::DeviceMemoryReservation(DeviceMemory* state,
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int device,
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void* p,
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size_t size,
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cudaStream_t stream)
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: state_(state),
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device_(device),
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data_(p),
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size_(size),
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stream_(stream) {
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}
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DeviceMemoryReservation::DeviceMemoryReservation(
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DeviceMemoryReservation&& m) noexcept {
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state_ = m.state_;
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device_ = m.device_;
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data_ = m.data_;
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size_ = m.size_;
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stream_ = m.stream_;
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m.data_ = NULL;
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}
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DeviceMemoryReservation::~DeviceMemoryReservation() {
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if (data_) {
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FAISS_ASSERT(state_);
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state_->returnAllocation(*this);
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}
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data_ = NULL;
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}
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DeviceMemoryReservation&
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DeviceMemoryReservation::operator=(DeviceMemoryReservation&& m) {
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if (data_) {
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FAISS_ASSERT(state_);
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state_->returnAllocation(*this);
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}
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state_ = m.state_;
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device_ = m.device_;
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data_ = m.data_;
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size_ = m.size_;
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stream_ = m.stream_;
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m.data_ = NULL;
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return *this;
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}
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DeviceMemory::~DeviceMemory() {
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}
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} } // namespace
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