Faster alternative to xvfb
Running MineRL on xvfb will slow it down by 2-3x as the rendering is done on CPU, not on the GPU. A potential alternative is to use a combination of VirtualGL and virtual displays from nvidia tools.
Note that this may interfere with your display/driver setup, and may not work on cloud VMs
nvidia-xconfig is not available).
Following commands outline the procedure. You may need to adapt it to suit your needs.
After these commands, run
export DISPLAY=:0 and you should be ready to run MineRL. The Minecraft window
will be rendered in a virtual display.
All credits go to Tencent researchers who kindly shared this piece of information!
sudo apt install lightdm libglu1-mesa mesa-utils xvfb xinit xserver-xorg-video-dummy sudo nvidia-xconfig -a --allow-empty-initial-configuration --virtual=1920x1200 --busid PCI:0:8:0 cd /tmp wget https://nchc.dl.sourceforge.net/project/virtualgl/2.6.3/virtualgl_2.6.3_amd64.deb sudo dpkg -i virtualgl_2.6.3_amd64.deb sudo service lightdm stop sudo vglserver_config sudo service lightdm start
Docker images for headless rendering with GPU
To begin with, build & run this docker on your server.
git clone https://github.com/jeasinema/egl-docker && cd egl-docker docker build . -t <docker_name> docker run --gpus all -it <docker_name>:latest /bin/bash
Inside the container, use the following command to verify if the GPU rendering is working. If you can see something like
OpenGL Renderer: NVIDIA GeForce RTX 3090/PCIe/SSE2, congratulations. Otherwise output like
OpenGL Renderer: llvmpipe (LLVM 12.0.0, 256 bits) indicates you’re still using CPU. Feel free to post to this repo if you have any issues.
You’re good to go! Just prepend your commands with
vglrun to enable GPU rendering.