Run OpenGL on AWS GPU instances with CentOS

Question

I need to execute some off-screen rendering program on AWS EC2 GPU instance with CentOS. However, while I found that Ubuntu is very easy to setup, I cannot let CentOS work prope

Answer 1

Just an additional find:

I did this to get the X Server running:

sudo /usr/bin/X :0 &

However, my OpenGL application was still not using the GPU for image rendering, and was therefore being REALLY slow.

This is what saved me -- setting a DISPLAY environment variable to the same display (ID: 0) that the X Server is using:

export DISPLAY=:0.0

Answer 2

lspci | grep VGA

You should see the busID is 0:3:0.

Using sudo, add this into your xorg.conf like so:

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GRID K520"
    BusID           "0:3:0"
EndSection

This should fix GLX failures.