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Copy pathGpuAutoTune_c.cpp
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97 lines (85 loc) · 3.29 KB
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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD+Patents license found in the
* LICENSE file in the root directory of this source tree.
*/
// Copyright 2004-present Facebook. All Rights Reserved.
// -*- c++ -*-
#include "GpuAutoTune_c.h"
#include "GpuClonerOptions_c.h"
#include "macros_impl.h"
#include "Index.h"
#include "gpu/GpuAutoTune.h"
#include "gpu/GpuClonerOptions.h"
#include <vector>
using faiss::Index;
using faiss::gpu::GpuResources;
using faiss::gpu::GpuClonerOptions;
using faiss::gpu::GpuMultipleClonerOptions;
int faiss_index_gpu_to_cpu(const FaissIndex* gpu_index, FaissIndex** p_out) {
try {
auto cpu_index = faiss::gpu::index_gpu_to_cpu(
reinterpret_cast<const Index*>(gpu_index)
);
*p_out = reinterpret_cast<FaissIndex*>(cpu_index);
} CATCH_AND_HANDLE
}
/// converts any CPU index that can be converted to GPU
int faiss_index_cpu_to_gpu(FaissGpuResources* resources, int device, const FaissIndex *index, FaissGpuIndex** p_out) {
try {
auto res = reinterpret_cast<GpuResources*>(resources);
auto gpu_index = faiss::gpu::index_cpu_to_gpu(
res, device, reinterpret_cast<const Index*>(index)
);
*p_out = reinterpret_cast<FaissGpuIndex*>(gpu_index);
} CATCH_AND_HANDLE
}
int faiss_index_cpu_to_gpu_with_options(
FaissGpuResources* resources, int device,
const FaissIndex *index, const FaissGpuClonerOptions* options,
FaissGpuIndex** p_out)
{
try {
auto res = reinterpret_cast<GpuResources*>(resources);
auto gpu_index = faiss::gpu::index_cpu_to_gpu(
res, device, reinterpret_cast<const Index*>(index),
reinterpret_cast<const GpuClonerOptions*>(options));
*p_out = reinterpret_cast<FaissGpuIndex*>(gpu_index);
} CATCH_AND_HANDLE
}
int faiss_index_cpu_to_gpu_multiple(
FaissGpuResources* const* resources_vec,
const int* devices, size_t devices_size,
const FaissIndex* index, FaissGpuIndex** p_out)
{
try {
std::vector<GpuResources*> res(devices_size);
for (auto i = 0u; i < devices_size; ++i) {
res[i] = reinterpret_cast<GpuResources*>(resources_vec[i]);
}
std::vector<int> dev(devices, devices + devices_size);
auto gpu_index = faiss::gpu::index_cpu_to_gpu_multiple(
res, dev, reinterpret_cast<const Index*>(index));
*p_out = reinterpret_cast<FaissGpuIndex*>(gpu_index);
} CATCH_AND_HANDLE
}
int faiss_index_cpu_to_gpu_multiple_with_options(
FaissGpuResources** resources_vec, size_t resources_vec_size,
int* devices, size_t devices_size,
const FaissIndex* index, const FaissGpuMultipleClonerOptions* options,
FaissGpuIndex** p_out)
{
try {
std::vector<GpuResources*> res(resources_vec_size);
for (auto i = 0u; i < resources_vec_size; ++i) {
res[i] = reinterpret_cast<GpuResources*>(resources_vec[i]);
}
std::vector<int> dev(devices, devices + devices_size);
auto gpu_index = faiss::gpu::index_cpu_to_gpu_multiple(
res, dev, reinterpret_cast<const Index*>(index),
reinterpret_cast<const GpuMultipleClonerOptions*>(options));
*p_out = reinterpret_cast<FaissGpuIndex*>(gpu_index);
} CATCH_AND_HANDLE
}