nixpkgs/nixos/doc/manual
Edward Tjörnhammar 9b95f21cdb nvidia,nixos/nvidia: add datacenter drivers compatible with default cudaPkgs
For NVLink topology systems we need fabricmanager. Fabricmanager itself is
dependent on the datacenter driver set and not the regular x11 ones, it is also
tightly tied to the driver version. Furhtermore the current cudaPackages
defaults to version 11.8, which corresponds to the 520 datacenter drivers.

Future improvement should be to switch the main nvidia datacenter driver version
on the `config.cudaVersion` since these are well known from:

> https://docs.nvidia.com/deploy/cuda-compatibility/index.html#use-the-right-compat-package

This adds nixos configuration options `hardware.nvidia.datacenter.enable` and
`hardware.nvidia.datacenter.settings` (the settings configure fabricmanager)

Other interesting external links related to this commit are:

* Fabricmanager download site:
    - https://developer.download.nvidia.com/compute/cuda/redist/fabricmanager/linux-x86_64/
* Data Center drivers:
    - https://www.nvidia.com/Download/driverResults.aspx/193711/en-us/

Implementation specific details:

* Fabricmanager is added as a passthru package, similar to settings and
  presistenced.
* Adds `use{Settings,Persistenced,Fabricmanager}` with defaults to preserve x11
  expressions.
* Utilizes mkMerge to split the `hardware.nvidia` module into three comment
  delimited sections:
    1. Common
    2. X11/xorg
    3. Data Center
* Uses asserts to make the configurations mutualy exclusive.

Notes:

* Data Center Drivers are `x86_64` only.
* Reuses the `nvidia_x11` attribute in nixpkgs on enable, e.g. doesn't change it
  to `nvidia_driver` and sets that to either `nvidia_x11` or `nvidia_dc`.
* Should have a helper function which is switched on `config.cudaVersion` like
  `selectHighestVersion` but rather `selectCudaCompatibleVersion`.
2023-09-12 07:17:33 +02:00
..
administration nixos/manual: Add chapter about instance unit overrides 2023-08-13 14:40:25 +02:00
configuration nixos/manual: rename references to services.udev.initrdRules 2023-06-27 14:36:49 +02:00
development nixos/stc: Improve mount unit handling 2023-08-21 09:07:14 +02:00
installation Merge pull request #232491 from 6t8k/20230517_nixos_manual_installing_partitioning 2023-07-26 15:12:51 +02:00
release-notes nvidia,nixos/nvidia: add datacenter drivers compatible with default cudaPkgs 2023-09-12 07:17:33 +02:00
common.nix nixos manual: extract some build paths 2023-07-25 17:03:12 +07:00
contributing-to-this-manual.chapter.md Merge pull request #248701 from doronbehar/nixos/manpages 2023-08-16 15:49:49 +00:00
default.nix nixos/doc: small rephrase in documentation of documentation 2023-08-16 06:24:37 +00:00
manual.md nixos/manual: render html with nixos-render-doc if !allowDocBook 2023-02-21 18:26:41 +01:00
nixos-options.md nixos-render-docs: add structural includes, use for manual 2023-02-12 13:02:42 +01:00
preface.md manual: fix matrix room link (#231523) 2023-05-12 18:55:19 -04:00
README.md
shell.nix nixpkgs/NixOS manuals: devmode feature 2023-07-25 17:03:15 +07:00