[theano-users] GpuArrayException: cuInit: CUDA_ERROR

Discussion:

[theano-users] GpuArrayException: cuInit: CUDA_ERROR_UNKNOWN: unknown error

Hendrik Weideman

2018-01-25 15:17:35 UTC

When I try to import Theano, I run into the following error message:

ERROR (theano.gpuarray): Could not initialize pygpu, support disabled
Traceback (most recent call last):
File "/home/user/Theano/theano/gpuarray/__init__.py", line 227, in
<module>
use(config.device)
File "/home/user/Theano/theano/gpuarray/__init__.py", line 214, in use
init_dev(device, preallocate=preallocate)
File "/home/user/Theano/theano/gpuarray/__init__.py", line 99, in init_dev
**args)
File "pygpu/gpuarray.pyx", line 658, in pygpu.gpuarray.init
(pygpu/gpuarray.c:9628)
File "pygpu/gpuarray.pyx", line 587, in pygpu.gpuarray.pygpu_init
(pygpu/gpuarray.c:9038)
GpuArrayException: cuInit: CUDA_ERROR_UNKNOWN: unknown error

I built and installed libgpuarray successfully, and Theano's installation
completes without any errors.
I'm running Ubuntu 14.04, with CUDA 9.1 and cuDNN 7. I'm currently running
NVIDIA 375.66, but I've
also tried 384.111 with no luck.

Output of nvidia-smi:
NVIDIA-SMI 375.66 Driver Version: 375.66
(And other information, showing three GPUs, GTX 660 and 2x TITAN X).

Output of nvcc --version:
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2017 NVIDIA Corporation
Built on Fri_Nov__3_21:07:56_CDT_2017
Cuda compilation tools, release 9.1, V9.1.85

Any ideas? The error message doesn't really give me a good lead on what I
should be investigating.

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Hendrik Weideman

2018-01-25 20:11:34 UTC

Permalink

For anyone else coming across this post, it turns out CUDA 9.1 doesn't
support Ubuntu 14.04:
http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#system-requirements

Everything works with CUDA 8.0 and NVIDIA 375.26.

Post by Hendrik Weideman
ERROR (theano.gpuarray): Could not initialize pygpu, support disabled
File "/home/user/Theano/theano/gpuarray/__init__.py", line 227, in
<module>
use(config.device)
File "/home/user/Theano/theano/gpuarray/__init__.py", line 214, in use
init_dev(device, preallocate=preallocate)
File "/home/user/Theano/theano/gpuarray/__init__.py", line 99, in init_dev
**args)
File "pygpu/gpuarray.pyx", line 658, in pygpu.gpuarray.init
(pygpu/gpuarray.c:9628)
File "pygpu/gpuarray.pyx", line 587, in pygpu.gpuarray.pygpu_init
(pygpu/gpuarray.c:9038)
GpuArrayException: cuInit: CUDA_ERROR_UNKNOWN: unknown error
I built and installed libgpuarray successfully, and Theano's installation
completes without any errors.
I'm running Ubuntu 14.04, with CUDA 9.1 and cuDNN 7. I'm currently
running NVIDIA 375.66, but I've
also tried 384.111 with no luck.
NVIDIA-SMI 375.66 Driver Version: 375.66
(And other information, showing three GPUs, GTX 660 and 2x TITAN X).
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2017 NVIDIA Corporation
Built on Fri_Nov__3_21:07:56_CDT_2017
Cuda compilation tools, release 9.1, V9.1.85
Any ideas? The error message doesn't really give me a good lead on what I
should be investigating.

Frédéric Bastien

2018-01-31 22:45:41 UTC

Permalink

Thanks for the answer.

Fred

Post by Hendrik Weideman
For anyone else coming across this post, it turns out CUDA 9.1 doesn't
http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#system-requirements
Everything works with CUDA 8.0 and NVIDIA 375.26.

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