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36ddba9196
* Facebook sync (2019-09-10) * Fix depends Makefile target. * Add faiss symlink for new include directives. * Fix missing header. * Fix tests. * Fix Makefile. * Update depend. * Fix include directives spacing.
42 lines
1.5 KiB
Plaintext
42 lines
1.5 KiB
Plaintext
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT 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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#pragma once
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#include <faiss/gpu/utils/Tensor.cuh>
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#include <faiss/gpu/utils/NoTypeTensor.cuh>
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#include <cublas_v2.h>
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namespace faiss { namespace gpu {
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class DeviceMemory;
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/// pqCentroids is of the form (sub q)(sub dim)(code id)
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/// Calculates the distance from the (query - centroid) residual to
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/// each sub-code vector, for the given list of query results in
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/// topQueryToCentroid
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void runPQCodeDistances(Tensor<float, 3, true>& pqCentroids,
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Tensor<float, 2, true>& queries,
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Tensor<float, 2, true>& coarseCentroids,
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Tensor<int, 2, true>& topQueryToCentroid,
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NoTypeTensor<4, true>& outCodeDistances,
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bool useFloat16Lookup,
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cudaStream_t stream);
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void runPQCodeDistancesMM(Tensor<float, 3, true>& pqCentroids,
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Tensor<float, 2, true>& queries,
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Tensor<float, 2, true>& coarseCentroids,
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Tensor<int, 2, true>& topQueryToCentroid,
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NoTypeTensor<4, true>& outCodeDistances,
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bool useFloat16Lookup,
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DeviceMemory& mem,
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cublasHandle_t handle,
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cudaStream_t stream);
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} } // namespace
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