VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Aug 18 2015 - 14:02:40 CDT

Hi,
  I wonder if your distro has left out some driver component
that's needed. Can you please send me the complete startup
messages that VMD prints on your machine, and also the output you
get when you run nvidia-smi on your system? That should be helpful
in giving you some concrete suggestions to try next.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Tue, Aug 18, 2015 at 11:10:24AM +0200, Andrea Spitaleri wrote:
> Hi,
>
> thanks to all for the kind reply. My nvidia-smi give me back:
>
> NVIDIA-SMI 346.59 Driver Version: 346.59
>
> so as mentioned by John my version and system should fulfil the minimum
> requirement in order to use GPU-acceleration for rendering.
>
> I use to update my nvidia drivers and cuda by using apt-get and the latest
> driver for NVIDIA is 346.59
>
> best
>
> and
>
> On 13/08/2015 22:27, Josh Vermaas wrote:
>
> Hi Andrea,
>
> VMD in principle doesn't care which driver version you use (save for
> really old ones), so long as the driver matches the cuda runtime
> version. To figure out what is being detected on your machine, run
> nvidia-smi. On my computer, which is running Ubuntu 14.04, this is my
> output:
>
> nvidia-smi
> Thu Aug 13 15:21:27 2015
> +------------------------------------------------------+
> | NVIDIA-SMI 346.59 Driver Version: 346.59
> |
> |-------------------------------+----------------------+----------------------+
> | GPU Name Persistence-M| Bus-Id Disp.A | Volatile
> Uncorr. ECC |
> | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util
> Compute M. |
> |===============================+======================+======================|
> | 0 GeForce GTX 980 Off | 0000:0C:00.0 N/A
> | N/A |
> | 46% 77C P2 N/A / N/A | 2731MiB / 4095MiB | N/A
> Default |
> +-------------------------------+----------------------+----------------------+
>
> +-----------------------------------------------------------------------------+
> | Processes: GPU
> Memory |
> | GPU PID Type Process name
> Usage |
> |=============================================================================|
> | 0 C+G Not
> Supported |
> +-----------------------------------------------------------------------------+
>
> The important part is at the top (I've bolded it). Those numbers need to
> match, or else nothing cuda-related is going to work. Odds are one of
> those two is ahead of or behind the other, which is causing a mismatch
> between the cuda runtime (the first number), and the driver version. I
> *think* the runtime is hidden in the libcuda package, but I've been
> known to misremember things.
>
> -Josh
>
> On 08/13/2015 10:58 AM, andrea spitaleri wrote:
>
> Hi all,
>
> I have configured my new machine bearing Geforce 740M Optimus
> technology, Ubuntu 15.04 installed, nvidia proprietary driver version
> 346.59 (from Ubuntu repository) and nvidia-cuda-toolkit 6.5.14.-1
> version installed from Software Center. I have installed vmd 1.9.2
> 64bit OpenGL, CUDA, TachyonL-Optix.
> When vmd starts, I got that my nvidia and cuda drivers have a mismatch
> version. Not sure what kind of driver nvidia version I need to install
> to make vmd happy :)
>
> thanks
>
> and
>
> --
> Andrea Spitaleri PhD
> D3 - Drug Discovery & Development
> Istituto Italiano di Tecnologia
> Via Morego, 30 16163 Genova
> cell: +39 3485188790
> [1]http://www.iit.it/en/d3-people/andrea-spitaleri.html
> ORCID: [2]http://orcid.org/0000-0003-3012-3557
>
> References
>
> Visible links
> 1. https://urldefense.proofpoint.com/v2/url?u=http-3A__www.iit.it_en_d3-2Dpeople_andrea-2Dspitaleri.html&d=AwMCaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=zFfoK61upjM5BwyoRAsX8dLq7rwWm8aw7r7dqtjgcCE&m=36zvnmXtWv5UM_HCAeUybkKd534kFQS3ThHvFGb-DG8&s=rcG2AuleURX-4If9aiUOuB1vDfUaK_MmnFnesN7QtmM&e=
> 2. https://urldefense.proofpoint.com/v2/url?u=http-3A__orcid.org_0000-2D0003-2D3012-2D3557&d=AwMCaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=zFfoK61upjM5BwyoRAsX8dLq7rwWm8aw7r7dqtjgcCE&m=36zvnmXtWv5UM_HCAeUybkKd534kFQS3ThHvFGb-DG8&s=kEBBrNDq0tGf4bdSX3S3zZtIjr452qiin69Y5ymwG3Y&e= 

-- 
NIH Center for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
http://www.ks.uiuc.edu/~johns/           Phone: 217-244-3349
http://www.ks.uiuc.edu/Research/vmd/