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This repo contains scripts and documents to enable Nvidia GPU accelerated desktop on Ampere CPU based workstation. It also demonstrated on installing desktop applications like open source DOOM3.

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Ampere Computing

NVIDIA GPU Accelerated Linux Desktop on Ampere

Summary

This repo contains scripts and documents to assist in the installation of GPU accelerated Linux desktops, applications, and application development.

Table of Contents

Introduction

Requirement

Hardware

  • An Ampere CPU based workstation to be installed Linux Desktop
    • AADP1
  • One or more Nvidia RTX GPU
    • RTX 2060, 3060/3070, 4080/4090, A4500
    • Optional: NVLINK

Software

  1. Ubuntu 20.04 or 22.04 (server) for arm64
  2. Nvidia GPU driver

Hardware Environment

AADP A1 has bug on grub and A2 version is recommended.

Monitors Connected to Builtin VGA

One monitor can connect to builtin VGA output is required on setup process.

Monitors Connected to GPU Video Output

Although it can run with only one monitor attached to GPU video output, but the booting processes information will not be able to show on the monitor attached to GPU.

Install Nvidia GPU

Install GPU at one of the two PCIex16 slots and connect power cables if needed.

GPU Power Connectors

The box comes with a spare GPU power cable hidden at the back of motherboard.

Set Up Audio

Mic/Speaker on the top of the case - A1 does not not work, while those of A2 works.

HDMI/DisplayPort Audio - recommended for audio via TV speaker. Both audio via HDMI and DisplayPort works.

Digital Output - No physical link/plug found

Installation Guide

Install Ubuntu Desktop

Install Ubuntu 20.04 or 22.04 Server with USB

  1. Download Ubuntu 22.04 server
  2. Install ubuntu with HWE Server

Install GPU driver

Disable aspm from kernel
$ sudo nano /etc/default/grub
# Add pcie_aspm=off to kernel parameters
# GRUB_CMDLINE_LINUX_DEFAULT="pcie_aspm=off"
$ sudo update-grub
$ sudo reboot
Download and Install GPU Driver

Download Nvidia GPU driver from Nvidia's site2 and install GPU driver with the follow script.

# Make sure the driver package name is updated in the script
$ ./install_gpu_driver.sh

Check the GPU driver is working with the following command.

nvidia-smi

Install Desktop Environment

sudo apt install ubuntu-desktop
sudo reboot

Note: There are no output to the monitor attached to GPU before desktop.

Verify GPU Accelerated Desktop with glmark2

sudo apt install glmark2
glmark2
# Check the render is Nvidia not LLVM

Setup Multiple Monitors

On the desktop GUI, start Settings->Displays, and then adjust the display settings and adjust the relative position of the displays.

Share Desktop Remotely

Install x11VNC on remote workstation

sudo apt install x11vnc

Create password on remote workstation

$ x11vnc -storepasswd
Enter VNC password:
Verify password:
Write password to /home/ampere/.vnc/passwd?  [y]/n y
Password written to: /home/ampere/.vnc/passwd

Start VNC on remote workstation

Create the new session

Start a new ssh session and then create x11vnc session.

x11vnc  -usepw -display :1
# try different display port until the following message 
# 'Autoprobing selected TCP port 59xx'
Connect to remote desktop from local clients

Download Remote Ripple3, and install it, and then connect to the server:59xx with the password saved on the server.

Applications

Install Flatpak

Flatpak4 collected a lots of applications that supports both amd64 and Aarch64/Arm64. On Ubuntu, it can be installed with the follow commands.

sudo ./scripts/install_flatpak.sh

Note: Installing applications from GUI might be broken.

Date/Time Issue If any of the commands above failed, it might be date/time issue. Use the following commands to update the system time and re-run the commands again.

sudo apt install ntp
sudo systemctl restart ntp

Install Dhewm3 - Open Source Version of DOOM3

Install Dhewm3 and Demo Pack of DOOM3 with the following command5.

sudo ./scripts/install_dhewm3.sh

Run DOOM3

flatpak run org.dhewm3.Dhewm3
#Run doom3 in full screen
flatpak run org.dhewm3.Dhewm3 +set r_fullscreen 1

Note: With more than one monitors, the game windowed could be anywhere, while the full-screen game will be on the primary window.

For more startup parameters, check this document6.

Enable Arm32 (Armhf) environment

Ampere Altra family processors support both Arm64 and Arm32, but to run Arm32 applications on Arm64 OS, an Arm32 environment need to be created. On Ubuntu 64 OS, the approach is debootstrap for chroot.

Install debootstrap

sudo apt install schroot debootstrap
sudo mkdir /srv/chroot
sudo mkdir /srv/chroot/debian-armhf
sudo debootstrap --arch armhf --foreign buster /srv/chroot/debian-armhf http://debian.xtdv.net/debian
sudo chroot "/srv/chroot/debian-armhf" /debootstrap/debootstrap --second-stage

Then add a config file for debian-armhf:

sudo nano /etc/schroot/chroot.d/debian-armhf.conf

Copy paste this code, and change into your computer username

[debian-armhf]
description=Debian Armhf chroot
aliases=debian-armhf
type=directory
directory=/srv/chroot/debian-armhf
profile=desktop
personality=linux
preserve-environment=true
root-users=<username>
users=<username>

Then edit the nssdatabases

sudo nano /etc/schroot/desktop/nssdatabases

copy paste this code

# System databases to copy into the chroot from the host system.
#
# <database name>
#passwd
shadow
#group
gshadow
services
protocols
#networks
#hosts
#user

Edit the stateoverride, and change the first contrab to root

sudo nano /srv/chroot/debian-armhf/var/lib/dpkg/statoverride

copy paste this code

root root 2755 /usr/bin/crontab

Now you should be able to schroot by typing

sudo schroot -c debian-armhf

Edit the bashrc

nano ~/.bashrc

add this code to the bottom of the line

export LANGUAGE="C"
export LC_ALL="C"
export DISPLAY=:0

let's restart chroot environment by exit and login again, then add a username that is similar to your main system username

exit
id
sudo schroot -c debian-armhf
adduser <username>
su - <username>

then again add bashrc `` nano ~/.bashrc

again add this code to the bottom of the line

export LANGUAGE="C" export LC_ALL="C" export DISPLAY=:0

#### Then restart chroot by double exit and login again, then install the following package

exit sudo schroot -c debian-armhf apt update && apt upgrade

More details on setting up Arm32 environment [^7].

### Install AnyDesk
Download RPi version `anydesk_6.2.1-1_armhf.deb`

echo deb http://archive.raspberrypi.org/debian/ bullseye main | sudo tee /etc/apt/sources.list.d/raspberrypi.list deb http://archive.raspberrypi.org/debian/ bullseye main

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 7FA3303E

wget -qO - http://archive.raspberrypi.org/debian/raspberrypi.gpg.key | sudo apt-key add -

sudo dpkg --add-architecture armhf sudo apt install libpolkit-gobject-1-0:armhf libraspberrypi0:armhf libraspberrypi-dev:armhf libraspberrypi-bin:armhf libgles-dev:armhf libegl-dev:armhf sudo ln -s /usr/lib/arm-linux-gnueabihf/libGLESv2.so /usr/lib/libbrcmGLESv2.so sudo ln -s /usr/lib/arm-linux-gnueabihf/libEGL.so /usr/lib/libbrcmEGL.so

Create and Enter Arm32 environment.

dpkg -i anydesk_6.2.1-1_armhf.deb

Error messages on dependencies

Install dependency

(debian-armhf)root@adlink:/home/ampere/Downloads# ldd /usr/bin/anydesk

  ...
  libpolkit-gobject-1.so.0 => not found
  ...
	libbcm_host.so => not found
	libvcos.so => not found
	libvchiq_arm.so => not found
	libbrcmGLESv2.so => not found
	libbrcmEGL.so => not found
  ...

  apt-get install -y libpolkit-gobject-1-dev

Applications Development

WIP

Application Libraries

OpenCL

Although OpenCL on Arm is not well supported from Nvidia7 and AMD, but PoCL8 can be the workaround. Here is the steps to install pocl(-cuda) and check OpenCL info.

# https://github.com/pocl/pocl
$ wget https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-$(uname)-$(uname -m).sh
$ bash Mambaforge-$(uname)-$(uname -m).sh  # install mambaforge
# Agree to license, and Yes to all questions
$ cd ~/mambaforge/bin/
$ ./mamba install pocl-cuda
# $ ./mamba install pocl
$ sudo apt install clinfo
$ clinfo

Note: there might some errors reported on clinfo.

References

Footnotes

  1. https://www.adlinktech.com/Products/Computer_on_Modules/COM-HPC-Server-Carrier-and-Starter-Kit/Ampere_Altra_Developer_Platform ↩

  2. https://www.nvidia.com/Download/driverResults.aspx/204838/en-us/ ↩

  3. https://remoteripple.com/ ↩

  4. https://flatpak.org/ ↩

  5. https://dhewm3.org/#how-to-install ↩

  6. https://modwiki.dhewm3.org/Startup_parameters ↩

  7. https://developer.nvidia.com/opencl ↩

  8. https://github.com/pocl/pocl ↩

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This repo contains scripts and documents to enable Nvidia GPU accelerated desktop on Ampere CPU based workstation. It also demonstrated on installing desktop applications like open source DOOM3.

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