mirror of
https://github.com/facebookresearch/faiss.git
synced 2025-06-03 21:54:02 +08:00
9503cf0d6a
Summary: This adds some more functions to the C API, under a new DeviceUtils_c.h module. Resolves https://github.com/facebookresearch/faiss/issues/1414. - `faiss_get_num_gpus` - `faiss_gpu_profiler_start` - `faiss_gpu_profiler_stop` - `faiss_gpu_sync_all_devices` The only minor issue right now is that building this requires basing it against an older version of Faiss until the building system is updated to use CMake (https://github.com/facebookresearch/faiss/issues/1390). I have provided a separate branch with the same contribution which is based against a version that works and builds OK: [`imp/c_api/add_gpu_device_utils`](https://github.com/Enet4/faiss/tree/imp/c_api/add_gpu_device_utils) Pull Request resolved: https://github.com/facebookresearch/faiss/pull/1613 Reviewed By: wickedfoo Differential Revision: D25942933 Pulled By: mdouze fbshipit-source-id: 5b73a86b0c1702dfb7b9e56bd741f72495aac2fd
40 lines
858 B
C
40 lines
858 B
C
/**
|
|
* 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.
|
|
*/
|
|
|
|
// Copyright 2004-present Facebook. All Rights Reserved.
|
|
// -*- c -*-
|
|
|
|
#ifndef FAISS_DEVICE_UTILS_C_H
|
|
#define FAISS_DEVICE_UTILS_C_H
|
|
|
|
#include <cuda_runtime_api.h>
|
|
#include <cublas.h>
|
|
#include "faiss_c.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/// Returns the number of available GPU devices
|
|
int faiss_get_num_gpus(int* p_output);
|
|
|
|
/// Starts the CUDA profiler (exposed via SWIG)
|
|
int faiss_gpu_profiler_start();
|
|
|
|
/// Stops the CUDA profiler (exposed via SWIG)
|
|
int faiss_gpu_profiler_stop();
|
|
|
|
/// Synchronizes the CPU against all devices (equivalent to
|
|
/// cudaDeviceSynchronize for each device)
|
|
int faiss_gpu_sync_all_devices();
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif
|