【发布时间】：2017-08-11 12:38:27
【问题描述】：
我使用的是 Windows 10，这是 mex 使用的编译器（如您所见，我使用的是 Visual Studio C++ 2015）：
>> mex -setup c++
MEX configured to use 'Microsoft Visual C++ 2015 Professional' for C++ language compilation.
Warning: The MATLAB C and Fortran API has changed to support MATLAB
variables with more than 2^32-1 elements. In the near future
you will be required to update your code to utilize the
new API. You can find more information about this at:
http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.
To choose a different C++ compiler, select one from the following:
MinGW64 Compiler (C++) mex -setup:'C:\Program Files\MATLAB_R2016b\bin\win64\mexopts\mingw64_g++.xml' C++
Microsoft Visual C++ 2015 Professional mex -setup:C:\Users\LENOVO\AppData\Roaming\MathWorks\MATLAB\R2016b\mex_C++_win64.xml C++
这是使用 gpuDevice 的结果：
>> gpuDevice
ans =
CUDADevice with properties:
Name: 'Quadro M1000M'
Index: 1
ComputeCapability: '5.0'
SupportsDouble: 1
DriverVersion: 8
ToolkitVersion: 7.5000
MaxThreadsPerBlock: 1024
MaxShmemPerBlock: 49152
MaxThreadBlockSize: [1024 1024 64]
MaxGridSize: [2.1475e+09 65535 65535]
SIMDWidth: 32
TotalMemory: 2.1475e+09
AvailableMemory: 1.6919e+09
MultiprocessorCount: 4
ClockRateKHz: 1071500
ComputeMode: 'Default'
GPUOverlapsTransfers: 1
KernelExecutionTimeout: 1
CanMapHostMemory: 1
DeviceSupported: 1
DeviceSelected: 1
在 Windows 命令提示符下，我检查 nvcc 时的结果：
C:\Users\LENOVO>nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2016 NVIDIA Corporation
Built on Mon_Jan__9_17:32:33_CST_2017
Cuda compilation tools, release 8.0, V8.0.60
但是似乎有一些警告：
C:\Users\LENOVO>nvcc
nvcc warning : The 'compute_20', 'sm_20', and 'sm_21' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning).
nvcc fatal : No input files specified; use option --help for more information
无论如何，当我尝试使用 mexcuda 编译 mexGPUExample.cu 时，出现了错误：
>> mexcuda -v mexGPUExample.cu
Warning: The selected C++ compiler is not supported for CUDA compilation. Searching for a supported
compiler.
> In mexcuda (line 89)
Trying MEX options 'C:\Program Files\MATLAB_R2016b\toolbox\distcomp\gpu\extern\src\mex\win64\nvcc_msvcpp2013.xml'...FAILED
Trying MEX options 'C:\Program Files\MATLAB_R2016b\toolbox\distcomp\gpu\extern\src\mex\win64\nvcc_msvcpp2012.xml'...FAILED
Warning: No supported host compiler found, or other problem with the environment.
Continuing with selected compiler to provide detailed diagnosis.
> In mexcuda (line 130)
mex -largeArrayDims -f C:\Program Files\MATLAB_R2016b\toolbox\distcomp\gpu\extern\src\mex\win64\nvcc_msvcpp2013.xml NVCC_FLAGS="" -v mexGPUExample.cu
Verbose mode is on.
... Looking for compiler 'NVIDIA CUDA Compiler' ...
... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No.
... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No.
Did not find installed compiler 'NVIDIA CUDA Compiler'.
Error using mex
No supported compiler or SDK was found. For options, visit
http://www.mathworks.com/support/compilers/R2016b/win64.html.
Error in mexcuda (line 157)
[varargout{1:nargout}] = mex(mexArguments{:});
但我已经安装了 Visual C++ 2015 编译器，CUDA 编译器支持该编译器（根据：https://www.mathworks.com/matlabcentral/answers/270635-mexcuda-error-on-windows-10-matlab-2015-b）。我很困惑:( 请帮助我，非常感谢您
【问题讨论】：
-
对于受支持的 CUDA 编译器，请信任 NVIDIA better。但是，应该支持您的。当我编译我的 .cu 文件时，而不是使用
mexcuda我使用mex并有一个带有nvcc标志和其他东西的.xml文件。你试过吗？ -
@AnderBiguri 如何设置这个 .xml 文件，你能给我链接吗？
-
在尝试之前，请尝试
mex -setup:C:\Users\LENOVO\AppData\Roaming\MathWorks\MATLAB\R2016b\mex_C++_win64.xml C++。否则，请检查xml file here。您可能需要修改一些路径和编译器标志。 YMMV
标签： matlab visual-c++ cuda installation gpu