Hi John,
What operating system are you using? and how were the NVIDIA drivers installed in the first place?
If it is redhat and they are through an RPM you can do - yum list | grep nvidia - and then uninstall all the installed RPMs that are related to NVIDIA and then reinstall them.
All the best
Ross
> On Mar 23, 2015, at 7:41 AM, Beale, John <John.Beale.stlcop.edu> wrote:
>
> CUDA was installed on my Linux workstation (which possesses two Nvidia GPUs) and it worked perfectly with Amber. Unfortunately, I mistakenly installed several recommended software updates, a number of which were for the Nvidia units, and now I can't get CUDA to work. Initially, the deviceQuery and bandwidthTest tests passed. Now they fail. The deviceQuery gives the following response:
>
> Warning: Module nvidia_uvm_346.46 not found
> cudaGetDeviceCount returned 30
>
> ? Unknown error
> Result = FAIL
>
> In my /var/lib/dkms directory I have the nvidia-uvm directory (note that this name is hyphenated, not underscored as it is in the deviceQuery error message). In /usr/src I have an nvidia-uvm-346.46 directory.
>
> If someone could help me get past these problems and get my CUDA working again I would appreciate it greatly! I have found on the web that others have had this problem, but I haven't found a solution there.
>
>
> John M. Beale, Jr. John M. Beale, Jr., Ph.D.
> Professor of Medicinal Chemistry and Pharmacognosy
> Saint Louis College of Pharmacy
> 4588 Parkview Place
> Saint Louis, Missouri 63110-1088
> Office: 314-446-8461
> Cell: 314-315-0409
> FAX: 314-446-8460
> John.Beale.stlcop.edu<mailto:John.Beale.stlcop.edu>
>
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Received on Mon Mar 23 2015 - 10:00:05 PDT
