MATLAB: How to solve problems in compile CUDE in matlab

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I used Matlab 2016a , Visual Studio 2013, CUDA 7.5 and cuDNN v5.1. When I perform compile cudu in matlab.. it shows error like the following.. vl_compilenn: CUDA: MEX config file: 'C:\Program Files\MATLAB\R2016a\toolbox\distcomp\gpu\extern\src\mex\win64\mex_CUDA_win64.xml' nvcc fatal : Unsupported gpu architecture 'compute_21' Error using vl_compilenn>nvcc_compile (line 540) Command "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\bin\nvcc" -c

Best Answer

http://docs.nvidia.com/deeplearning/sdk/cudnn-install/index.html

Cudnn needs cuda 3.0 or later. Your device only has cuda 2.1. You will need be able to run the software on that hardware.

You are also at pretty much the last MATLAB version that can use that hardware for gpu purposes, I seem to recall.

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MATLAB: A problem in MatConvNet to Compiling the cuDNN support

There is nothing obvious there. I would, though, recommend that you use a complete path for the last parameter. Also double check that you have write permission to the E:/MatconvNet etc directory described by that -o switch

MATLAB: Having problem In MatConvNet to Compiling the cuDNN support.

This appears to be a bug in MatConvNet's vl_compilenn function preventing it from working when your cudnn include path contains spaces. In my version lines 298-301 say:

if opts.enableCudnn,
  flags.cc{end+1} = '-DENABLE_CUDNN' ;
  flags.cc{end+1} = ['-I' opts.cudnnIncludeDir] ;
end

The third line is missing quotes, so change it to:

if opts.enableCudnn,
  flags.cc{end+1} = '-DENABLE_CUDNN' ;
  flags.cc{end+1} = ['-I"' opts.cudnnIncludeDir '"'] ;
end

The actual lines of code may be slightly different in your version of vl_compilenn.

This is a very bad error and I can see similar mistakes being made through that file, which makes me think that somehow under normal circumstances this is not a problem and it's only cropping up on your system for some reason.

...or you're the first ever Windows user of MatConvNet perhaps? (But the file does claim it's been tested on Windows.)

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MATLAB: A problem in MatConvNet to Compiling the cuDNN support

MATLAB: Having problem In MatConvNet to Compiling the cuDNN support.

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