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33 lines
883 B
C++
33 lines
883 B
C++
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD+Patents 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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#include "MemorySpace.h"
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#include <cuda_runtime.h>
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namespace faiss { namespace gpu {
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/// Allocates CUDA memory for a given memory space
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void allocMemorySpace(MemorySpace space, void** p, size_t size) {
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if (space == MemorySpace::Device) {
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FAISS_ASSERT_FMT(cudaMalloc(p, size) == cudaSuccess,
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"Failed to cudaMalloc %zu bytes", size);
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}
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#ifdef FAISS_UNIFIED_MEM
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else if (space == MemorySpace::Unified) {
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FAISS_ASSERT_FMT(cudaMallocManaged(p, size) == cudaSuccess,
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"Failed to cudaMallocManaged %zu bytes", size);
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}
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#endif
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else {
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FAISS_ASSERT_FMT(false, "Unknown MemorySpace %d", (int) space);
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}
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}
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} }
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