Run OpenGL on AWS GPU instances with Ubuntu

Question

I'm trying to get opengl working for headless offscreen rendering on a Amazon p2 instance with Ubuntu Ubuntu Server 16.04.

After instance creation I've installed the appropriate nvidia drivers according to this amazon article, and they seem to be working as expected:

$ lsmod | grep nvidia
nvidia_drm             53248  0
nvidia_modeset        790528  1 nvidia_drm
nvidia              11911168  1 nvidia_modeset
drm_kms_helper        155648  3 cirrus,nouveau,nvidia_drm
drm                   364544  7 ttm,drm_kms_helper,cirrus,nouveau,nvidia_drm

$ nvidia-smi -q | head
==============NVSMI LOG==============

Timestamp                           : Thu Jan 19 11:22:38 2017
Driver Version                      : 375.20

Attached GPUs                       : 1
GPU 0000:00:1E.0
Product Name                    : Tesla K80
Product Brand                   : Tesla

I'm then trying the steps from this related question:

sudo apt-get install xserver-xorg libglu1-mesa-dev freeglut3-dev mesa-common-dev libxmu-dev libxi-dev
sudo nvidia-xconfig -a --use-display-device=None --virtual=1280x1024
sudo /usr/bin/X :0 &

Which does start X but running glxinfo does not work:

$ DISPLAY=:0 glxinfo
name of display: :0
Xlib:  extension "GLX" missing on display ":0".
Xlib:  extension "GLX" missing on display ":0".
(... line repeats couple of times ...)
Error: couldn't find RGB GLX visual or fbconfig

Changing the BusID in Xorg.conf as mentioned in the related stackoverflow question did not help.

$ lspci|grep VGA
00:02.0 VGA compatible controller: Cirrus Logic GD 5446

/etc/X11/xorg.conf
Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "Tesla K80"
    BusID          "PCI:0:2:0"
EndSection

I've googled quite intensively and it's unclear to me how to proceed next... Any help would be appreciated

Answer 1

The official documentation about this is http://www.nvidia.com/content/PDF/remote-viz-tesla-gpus.pdf "REMOTE VISUALIZATION ON SERVER-CLASS TESLA GPUS". Read page 15. You have to add BusID to nvidia-xconfig.

First, run nvidia-xconfig --query-gpu-info. This is my p2 instance result.

Number of GPUs: 1

GPU #0:
  Name      : Tesla K80
  UUID      : GPU-f13e8e90-5d2f-f9fb-b7a8-39edf9500698
  PCI BusID : PCI:0:30:0

  Number of Display Devices: 0

Then you need to run this.

sudo nvidia-xconfig --busid=PCI:0:30:0 --use-display-device=none --virtual=1280x1024

You can run Xorg server by sudo Xorg :1 .

The DISPLAY=:1 glxinfo result.

name of display: :1
display: :1  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
    GLX_ARB_context_flush_control, GLX_ARB_create_context,
...