Unrecognized function or variable 'nvcc'. with Matlab R2022a

11 ビュー (過去 30 日間)
Felix Wellschmied
Felix Wellschmied 2022 年 9 月 1 日
コメント済み: Felix Wellschmied 2022 年 9 月 1 日
I am running Matlab R2022a with CUDA 11.2 on Windows (Visual Studio Community 2019). I have a add_kernel.cu file in my folder but fail to compile it:
nvcc -ptx add_kernel.cu
Unrecognized function or variable 'nvcc'.
Matlab seems to recognize my CUDA version:
system('nvcc --version')
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2020 NVIDIA Corporation
Built on Mon_Nov_30_19:15:10_Pacific_Standard_Time_2020
Cuda compilation tools, release 11.2, V11.2.67
Build cuda_11.2.r11.2/compiler.29373293_0
ans =
I have looked around and people suggested to explicitly add the pathes of the ncc file and the VS execution which I already tried:
addpath(genpath('C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.29.30133\bin\Hostx64\x64'))
addpath(genpath('C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.2\bin'))
I think it is irrelavent but Matlab also finds my GPU:
CUDADevice with properties:
Name: 'NVIDIA GeForce RTX 3060'
Index: 1
ComputeCapability: '8.6'
SupportsDouble: 1
DriverVersion: 11.7000
ToolkitVersion: 11.2000
MaxThreadsPerBlock: 1024
MaxShmemPerBlock: 49152
MaxThreadBlockSize: [1024 1024 64]
MaxGridSize: [2.1475e+09 65535 65535]
SIMDWidth: 32
TotalMemory: 1.2884e+10
AvailableMemory: 1.1646e+10
MultiprocessorCount: 28
ClockRateKHz: 1777000
ComputeMode: 'Default'
GPUOverlapsTransfers: 1
KernelExecutionTimeout: 1
CanMapHostMemory: 1
DeviceSupported: 1
DeviceAvailable: 1
DeviceSelected: 1
I would be glad about any suggestions.


Raymond Norris
Raymond Norris 2022 年 9 月 1 日
nvcc is a NVIDIA compiler, not a MATLAB function. I suspect what you want is mexcuda.
  1 件のコメント
Felix Wellschmied
Felix Wellschmied 2022 年 9 月 1 日
Thank you very much. I falsely read from the following article that nvcc is the Matlab comand and not mexcuda:
My fault. Thank you for your quick reply!


その他の回答 (0 件)





Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by