mirror of
https://github.com/NVIDIA/cuda-samples.git
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83 lines
3.0 KiB
C
83 lines
3.0 KiB
C
/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#ifndef __VKCUDA_H__
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#define __VKCUDA_H__
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#include <cuda_runtime_api.h>
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#include "cuda.h"
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#define CUDA_DRIVER_API
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#include <helper_cuda.h>
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bool isDeviceCompatible(void *Uuid, size_t size) {
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int cudaDevice = cudaInvalidDeviceId;
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int deviceCount;
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checkCudaErrors(cudaGetDeviceCount(&deviceCount));
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for (int i = 0; i < deviceCount; ++i) {
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cudaDeviceProp devProp = {};
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checkCudaErrors(cudaGetDeviceProperties(&devProp, i));
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if (!memcmp(&devProp.uuid, Uuid, size)) {
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cudaDevice = i;
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break;
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}
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}
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if (cudaDevice == cudaInvalidDeviceId) {
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return false;
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}
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int deviceSupportsHandle = 0;
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int attributeVal = 0;
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int deviceComputeMode = 0;
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checkCudaErrors(cuDeviceGetAttribute(
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&deviceComputeMode, CU_DEVICE_ATTRIBUTE_COMPUTE_MODE, cudaDevice));
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checkCudaErrors(cuDeviceGetAttribute(
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&attributeVal, CU_DEVICE_ATTRIBUTE_VIRTUAL_ADDRESS_MANAGEMENT_SUPPORTED,
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cudaDevice));
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#if defined(__linux__)
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checkCudaErrors(cuDeviceGetAttribute(
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&deviceSupportsHandle,
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CU_DEVICE_ATTRIBUTE_HANDLE_TYPE_POSIX_FILE_DESCRIPTOR_SUPPORTED,
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cudaDevice));
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#else
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checkCudaErrors(cuDeviceGetAttribute(
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&deviceSupportsHandle,
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CU_DEVICE_ATTRIBUTE_HANDLE_TYPE_WIN32_HANDLE_SUPPORTED, cudaDevice));
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#endif
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if ((deviceComputeMode != CU_COMPUTEMODE_DEFAULT) || !attributeVal ||
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!deviceSupportsHandle) {
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return false;
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}
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return true;
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}
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#endif // __VKCUDA_H__
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