Before I left work on Friday I checked to ensure that the packages in Synaptic were all NVIDIA version 331 (I think). Even if the numbers are right in Synaptic, I suppose there could still be a version mismatch somewhere, so I'll check "dmesg" specifically on Monday.
FWIW I am pretty sure that the CUDA version jumped up from 5.5 (or 5.0?) in 14.04 up to CUDA 6.0 in 14.10. But I assume that PyCUDA is designed (and tested) to be forward-compatible, so I doubt that's the problem. Eric On Fri, Oct 31, 2014 at 11:40 PM, Andreas Kloeckner <[email protected] > wrote: > Eric Larson <[email protected]> writes: > > > PyCUDA worked perfectly on Ubuntu 14.04, but after upgrade to 14.10 I get > > the following in both Python 2 and Python 3: > > > >>>> import pycuda.autoinit > > Traceback (most recent call last): > > File "<stdin>", line 1, in <module> > > File > > > "/home/larsoner/.local/lib/python2.7/site-packages/pycuda-2014.1-py2.7-linux-x86_64.egg/pycuda/autoinit.py", > > line 4, in <module> > > cuda.init() > > pycuda._driver.Error: cuInit failed: unknown > > > > This is the same on latest `master` (shown above) and using the version > in > > the Ubuntu repos. I can manually compile and run at least this example > > (devicequery): > > > > http://www.cac.cornell.edu/vw/gpu/example_submit.aspx > > > > and my system is using the proprietary NVIDIA drivers, so CUDA appears to > > be configured properly. Has anyone else experienced this? I've reported > the > > bug here as well: > > > > https://bugs.launchpad.net/ubuntu/+source/pycuda/+bug/1388217 > > Check if 'dmesg' reveals anything. You might have a mismatch between > libcuda.so and you driver. (If so, good job, Ubuntu.) > > Andreas >
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