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, 4 deletions

diff --git a/pkgs/games/katago/default.nix b/pkgs/games/katago/default.nix
index 3265f3d63382f..6328b3f9bc820 100644
--- a/pkgs/games/katago/default.nix
+++ b/pkgs/games/katago/default.nix
@@ -1,8 +1,7 @@
 { stdenv
 , boost
 , cmake
-, cudatoolkit
-, cudnn
+, cudaPackages
 , eigen
 , fetchFromGitHub
 , gperftools
@@ -52,7 +51,7 @@ stdenv.mkDerivation rec {
   ] ++ lib.optionals (!enableGPU) [
     eigen
   ] ++ lib.optionals (enableGPU && enableCuda) [
-    cudnn
+    cudaPackages.cudnn
     mesa.drivers
   ] ++ lib.optionals (enableGPU && !enableCuda) [
     opencl-headers
@@ -86,7 +85,7 @@ stdenv.mkDerivation rec {
   preConfigure = ''
     cd cpp/
   '' + lib.optionalString enableCuda ''
-    export CUDA_PATH="${cudatoolkit}"
+    export CUDA_PATH="${cudaPackages.cudatoolkit}"
     export EXTRA_LDFLAGS="-L/run/opengl-driver/lib"
   '';