CI: Update CUDA versions for linux CI to be consistent and include 12.9.

Also uses SM 120 for the 12.9 build on regular ubuntu CI, to test blackwell compute capability compilation

Author: ptheywood

.github/workflows/Draft-Release.yml

@@ -41,7 +41,7 @@ jobs:
       matrix:
         # CUDA_ARCH values are reduced compared to wheels due to CI memory issues while compiling the test suite.
         cudacxx:
-          - cuda: "12.6"
+          - cuda: "12.9"
             cuda_arch: "50-real;90-real;90-virtual;"
             hostcxx: gcc-13
             os: ubuntu-24.04

.github/workflows/Lint.yml

@@ -30,7 +30,7 @@ jobs:
       # optional exclude: can be partial, include: must be specific
       matrix:
         cudacxx:
-          - cuda: "11.8"
+          - cuda: "11.7"
             os: ubuntu-22.04
     env:
       # Define constants

.github/workflows/Manylinux_2_28.yml

@@ -33,18 +33,15 @@ jobs:
       # optional exclude: can be partial, include: must be specific
       matrix:
         cudacxx:
+          # Oldest CUDA 12.x and 11.x we support, which are used for wheel production
           - cuda: "12.0"
             cuda_arch: "50"
             hostcxx: gcc-toolset-12
-            os: ubuntu-22.04
-          - cuda: "11.8"
-            cuda_arch: "35"
-            hostcxx: gcc-toolset-10
-            os: ubuntu-22.04
+            os: ubuntu-24.04
           - cuda: "11.2"
             cuda_arch: "35"
             hostcxx: gcc-toolset-9
-            os: ubuntu-22.04
+            os: ubuntu-24.04
         python:
           - "3.12"
         config:

.github/workflows/Ubuntu.yml

@@ -29,19 +29,20 @@ jobs:
       # optional exclude: can be partial, include: must be specific
       matrix:
         cudacxx:
-          - cuda: "12.6"
-            cuda_arch: "50"
+          # Oldest and newest CUDA 12.x
+          - cuda: "12.9"
+            cuda_arch: "120"
             hostcxx: gcc-13
             os: ubuntu-24.04
           - cuda: "12.0"
             cuda_arch: "50"
             hostcxx: gcc-12
             os: ubuntu-22.04
+          # Oldest and newest CUDA 11.x with network installers on ubuntu 22.04
           - cuda: "11.8"
             cuda_arch: "35"
             hostcxx: gcc-11
             os: ubuntu-22.04
-          # 11.7 is the oldest supported CUDA on 22.04
           - cuda: "11.7"
             cuda_arch: "35"
             hostcxx: gcc-9