Hey Everyone,
I'm working on a fresh install of an Ubuntu 18.04 system. Everything was going well until I got MATLAB 2019a and was trying to compile GPU code.
Namely, when running
In MATLAB, it will tell me:
Warning: Version 10.0 of the CUDA toolkit could not be found. If installed, set MW_NVCC_PATH environment variable
to location of nvcc compiler.
> In mexcuda (line 166)
Error using mex
No supported compiler was found. For options, visit https://www.mathworks.com/support/compilers.
Error in mexcuda (line 166)
[varargout{1:nargout}] = mex(mexArguments{:});
So I found my CUDA 10.1 installation at the normal symbolic link place and updated the environment:
setenv('MW_NVCC_PATH','/usr/local/cuda/bin')
Then ran mexcuda again. Still the same error message. However, oddly enough, when I run d = gpuDevice() it works perfectly and shows:
>> d = gpuDevice
d =
CUDADevice with properties:
Name: 'GeForce GTX 1070'
Index: 1
ComputeCapability: '6.1'
SupportsDouble: 1
DriverVersion: 10.1000
ToolkitVersion: 10
MaxThreadsPerBlock: 1024
MaxShmemPerBlock: 49152
MaxThreadBlockSize: [1024 1024 64]
MaxGridSize: [2.1475e+09 65535 65535]
SIMDWidth: 32
TotalMemory: 8.5126e+09
AvailableMemory: 8.0890e+09
MultiprocessorCount: 15
ClockRateKHz: 1721000
ComputeMode: 'Default'
GPUOverlapsTransfers: 1
KernelExecutionTimeout: 1
CanMapHostMemory: 1
DeviceSupported: 1
DeviceSelected: 1
If I update my path variable and run nvcc --version it shows:
$ export PATH=/usr/local/cuda-10.1/bin
$ nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Wed_Apr_24_19:10:27_PDT_2019
Cuda compilation tools, release 10.1, V10.1.168
Any ideas as to why CUDA is recognized, the GPU works, but MATLAB will not let CUDA 10.1 be CUDA 10.0?
Thanks!