Hi Andreas, Thanks for the quick response. The machine had been rebooted (uptime less than since the driver upgrade was applied) and when I look through the output of dmesg, I see:
[ 11.645200] nvidia-nvlink: Nvlink Core is being initialized, major device number 243 [ 11.645234] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 375.26 Thu Dec 8 18:36:43 PST 2016 (using threaded interrupts) which to me would indicate the new kernel module has in fact been loaded. Is there something else I should be looking for there? Thanks, Josh > On Jan 25, 2017, at 4:13 PM, Andreas Kloeckner <li...@informa.tiker.net> > wrote: > > Josh Willis <josh.wil...@acu.edu> writes: > >> 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. > > Check the output of 'dmesg'. You may need to reboot. > > Andreas -- Josh Willis josh.wil...@acu.edu Associate Professor of Engineering & Physics Abilene Christian University Onstead Science Center Room 321C Phone: (325) 674-2527 Fax: (325) 674-2146 Dept: (325) 674-2165 _______________________________________________ PyCUDA mailing list PyCUDA@tiker.net https://lists.tiker.net/listinfo/pycuda
