cudaPackages: overhaul of how we package cuda packages

There are many different versions of the `cudatoolkit` and related
cuda packages, and it can be tricky to ensure they remain compatible.

- `cudaPackages` is now a package set with `cudatoolkit`, `cudnn`, `cutensor`, `nccl`, as well as `cudatoolkit` split into smaller packages ("redist");
- expressions should now use `cudaPackages` as parameter instead of the individual cuda packages;
- `makeScope` is now used, so it is possible to use `.overrideScope'` to set e.g. a different `cudnn` version;
- `release-cuda.nix` is introduced to easily evaluate cuda packages using hydra.

1 files changed, 3 insertions, 1 deletions

diff --git a/pkgs/applications/misc/firestarter/default.nix b/pkgs/applications/misc/firestarter/default.nix
index 92c517835d8..dca8e125691 100644
--- a/pkgs/applications/misc/firestarter/default.nix
+++ b/pkgs/applications/misc/firestarter/default.nix
@@ -8,11 +8,13 @@
 , glibc
 , git
 , pkg-config
-, cudatoolkit
+, cudaPackages ? {}
 , withCuda ? false
 }:
 
 let
+  inherit (cudaPackages) cudatoolkit;
+
   hwloc = stdenv.mkDerivation rec {
     pname = "hwloc";
     version = "2.2.0";