faiss/gpu/impl/BinaryDistance.cuh
Lucas Hosseini a8118acbc5
Facebook sync (May 2019) + relicense (#838)
Changelog:

- changed license: BSD+Patents -> MIT
- propagates exceptions raised in sub-indexes of IndexShards and IndexReplicas
- support for searching several inverted lists in parallel (parallel_mode != 0)
- better support for PQ codes where nbit != 8 or 16
- IVFSpectralHash implementation: spectral hash codes inside an IVF
- 6-bit per component scalar quantizer (4 and 8 bit were already supported)
- combinations of inverted lists: HStackInvertedLists and VStackInvertedLists
- configurable number of threads for OnDiskInvertedLists prefetching (including 0=no prefetch)
- more test and demo code compatible with Python 3 (print with parentheses)
- refactored benchmark code: data loading is now in a single file
2019-05-28 16:17:22 +02:00

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/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include "../utils/DeviceTensor.cuh"
namespace faiss { namespace gpu {
// Performs brute-force k-NN comparison between `vecs` and `query`, where they
// are encoded as binary vectors
void runBinaryDistance(Tensor<unsigned char, 2, true>& vecs,
Tensor<unsigned char, 2, true>& query,
Tensor<int, 2, true>& outK,
Tensor<int, 2, true>& outV,
int k, cudaStream_t stream);
} } // namespace