support torch 2.8.0

.github/workflows/macos-cpu-wheels.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches:
       # - wheel
-      - torch-2.7.1
+      - torch-2.8.0
     tags:
       - '*'
   workflow_dispatch:

.github/workflows/ubuntu-arm64-cpu-wheels.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches:
       # - wheel
-      - torch-2.7.1
+      - torch-2.8.0
     tags:
       - '*'
   workflow_dispatch:

.github/workflows/ubuntu-cpu-wheels.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches:
       # - wheel
-      - torch-2.7.1
+      - torch-2.8.0
     tags:
       - '*'
   workflow_dispatch:

.github/workflows/windows-x64-cpu-wheels.yml

@@ -4,7 +4,7 @@ on:
   push:
     branches:
       # - wheel
-      - torch-2.7.1
+      - torch-2.8.0
     tags:
       - '*'
   workflow_dispatch:

scripts/github_actions/generate_build_matrix.py

@@ -319,10 +319,18 @@ def generate_build_matrix(
                 else ["11.8.0", "12.6.2", "12.8.1"]
             ),
         },
+        "2.8.0": {
+            "python-version": ["3.9", "3.10", "3.11", "3.12", "3.13"],
+            "cuda": (
+                ["12.6", "12.8", "12.9"]  # default 12.8
+                if not for_windows
+                else ["12.6.2", "12.8.1", "12.9.1"]
+            ),
+        },
         # https://github.com/Jimver/cuda-toolkit/blob/master/src/links/windows-links.ts
     }
     if test_only_latest_torch:
-        latest = "2.7.1"
+        latest = "2.8.0"
         matrix = {latest: matrix[latest]}
 
     if for_windows or for_macos:

scripts/github_actions/install_torch.sh

@@ -281,6 +281,23 @@ case ${torch} in
         ;;
     esac
     ;;
+  2.8.*)
+    case ${cuda} in
+      12.6)
+        package="torch==${torch}+cu126"
+        # https://download.pytorch.org/whl/nightly/torch/
+        url=https://download.pytorch.org/whl/torch/
+        ;;
+      12.8)
+        package="torch==${torch}+cu128"
+        url=https://download.pytorch.org/whl/torch/
+        ;;
+      12.9)
+        package="torch==${torch}+cu129"
+        url=https://download.pytorch.org/whl/torch/
+        ;;
+    esac
+    ;;
   *)
     echo "Unsupported PyTorch version: ${torch}"
     exit 1