Hi,
After updating the NVIDIA driver from 367.48 to 375.26, I can no longer get
PyCUDA to run. I have tried a fresh build of PyCUDA-2016.1.2, and the
configure/make/make install steps seem to proceed fine. However if I do:
$ python
Python 2.7.5 (default, Nov 3 2016, 22:05:29)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import pycuda
>>> import pycuda.autoinit
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/home/jwillis/envs/er10/lib/python2.7/site-packages/pycuda-2016.1.2-py2.7-linux-x86_64.egg/pycuda/autoinit.py",
line 5, in <module>
cuda.init()
pycuda._driver.Error: cuInit failed: unknown error
>>>
If I look to make sure that kernel modules are loaded, I see the following
(though I’m not sure what I *should* see, this just seemed to be a common
source of this kind of problem after an upgrade):
$ lsmod | grep nvi
nvidia 11944366 0
i2c_core 40756 7
ast,drm,igb,i2c_i801,drm_kms_helper,i2c_algo_bit,nvidia
Does anyone have any suggestions on what to try next in debugging the source of
this error? I can compile a “hello world” kernel directly with nvcc and run it
with no problem.
Thanks,
Josh
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