Ryan Houdek
6fa27aac42
This is enough to get less complex cuda applications running, and is a good starting spot to slowly finish off the remaining implementation. Some information: - 429 functions in total - 153 only compiled for 64-bit (35.6%) - 7 functions disabled entirely (1.6%) The main thing /not/ working with this initial implementation is .cu files compiled in to an ELF using the static cuda runtime. This is due to the `cuGetExportTable` function being stubbed out and the static cuda RT requires at least two interfaces from that function before it continues. This function isn't publicly documented by NVIDIA but has been publicly reverse engineered to be fairly trivial. It's just a jump table with the first element being the size of the table in bytes. That will be the next step of the implementation.
FEX: Emulate x86 Programs on ARM64
FEX allows you to run x86 applications on ARM64 Linux devices, similar to qemu-user and box64. It offers broad compatibility with both 32-bit and 64-bit binaries, and it can be used alongside Wine/Proton to play Windows games.
It supports forwarding API calls to host system libraries like OpenGL or Vulkan to reduce emulation overhead. An experimental code cache helps minimize in-game stuttering as much as possible. Furthermore, a per-app configuration system allows tweaking performance per game, e.g. by skipping costly memory model emulation. We also provide a user-friendly FEXConfig GUI to explore and change these settings.
Prerequisites
FEX requires ARMv8.0+ hardware. It has been tested with the following Linux distributions, though others are likely to work as well:
- Arch Linux
- Fedora Linux
- openSUSE
- Ubuntu 22.04/24.04/24.10/25.04
An x86-64 RootFS is required and can be downloaded using our FEXRootFSFetcher tool for many distributions.
For other distributions you will need to generate your own RootFS (our wiki page might help).
Quick Start
For Ubuntu 22.04, 24.04, 24.10 and 25.04
Execute the following command in the terminal to install FEX through a PPA.
curl --silent https://raw.githubusercontent.com/FEX-Emu/FEX/main/Scripts/InstallFEX.py | python3
This command will walk you through installing FEX through a PPA, and downloading a RootFS for use with FEX.
For other Distributions
Follow the guide on the official FEX-Emu Wiki here.
Navigating the Source
See the Source Outline for more information.