Faiss

- Main Page
- Namespaces
- Classes
- Files

- File List

All Classes Namespaces Functions Variables Typedefs Enumerations Enumerator Friends
MemorySpace.cpp
1 /**
2 * Copyright (c) 2015-present, Facebook, Inc.
3 * All rights reserved.
4 *
5 * This source code is licensed under the BSD+Patents license found in the
6 * LICENSE file in the root directory of this source tree.
7 */
8
9
10 #include "MemorySpace.h"
11 #include <cuda_runtime.h>
12
13 namespace faiss { namespace gpu {
14
15 /// Allocates CUDA memory for a given memory space
16 void allocMemorySpace(MemorySpace space, void** p, size_t size) {
17 if (space == MemorySpace::Device) {
18 FAISS_ASSERT_FMT(cudaMalloc(p, size) == cudaSuccess,
19 "Failed to cudaMalloc %zu bytes", size);
20 }
21 #ifdef FAISS_UNIFIED_MEM
22 else if (space == MemorySpace::Unified) {
23 FAISS_ASSERT_FMT(cudaMallocManaged(p, size) == cudaSuccess,
24 "Failed to cudaMallocManaged %zu bytes", size);
25 }
26 #endif
27 else {
28 FAISS_ASSERT_FMT(false, "Unknown MemorySpace %d", (int) space);
29 }
30 }
31
32 } }