Migrate MacOs wheel binary builds to ephemeral M1 runners (#110432)

Surprisingly there are no speed difference between running the cross-compilation on `macos12-xl` (x86_64 12 core machine) and `macos-13-xlarge` (m1 6 core machine)

Most of the changes are on the https://github.com/pytorch/builder side:
- pytorch/builder@50a6e91 skips installing mkl on M1 machines
- pytorch/builder@bbb29b0 same for llvm-9
- pytorch/builder@8bcc83d bumps minimal numpy version to 1.19 (as 1.17 is not available for m1)
- pytorch/builder@cc4f1f9 skips building tests/distributed for M1
Pull Request resolved: #110432
Approved by: https://github.com/kit1980

.github/scripts/generate_ci_workflows.py

@@ -60,7 +60,7 @@ class BinaryBuildWorkflow:
     branches: str = "nightly"
     # Mainly for macos
     cross_compile_arm64: bool = False
-    xcode_version: str = ""
+    macos_runner: str = "macos-12-xl"
 
     def __post_init__(self) -> None:
         if self.abi_version:
@@ -307,7 +307,8 @@ class OperatingSystem:
         build_configs=generate_binary_build_matrix.generate_wheels_matrix(
             OperatingSystem.MACOS_ARM64
         ),
-        cross_compile_arm64=True,
+        cross_compile_arm64=False,
+        macos_runner="macos-13-xlarge",
         ciflow_config=CIFlowConfig(
             labels={LABEL_CIFLOW_BINARIES, LABEL_CIFLOW_BINARIES_WHEEL},
             isolated_workflow=True,

.github/templates/macos_binary_build_workflow.yml.j2

@@ -58,7 +58,7 @@ jobs:
 {%- for config in build_configs %}
   !{{ config["build_name"] }}-build:
     if: ${{ github.repository_owner == 'pytorch' }}
-    runs-on: macos-12-xl
+    runs-on: !{{ macos_runner }}
     timeout-minutes: !{{ common.timeout_minutes }}
     !{{ upload.binary_env(config, true) }}
       # For sccache access (only on non-forked PRs)
@@ -69,11 +69,15 @@ jobs:
       - name: Install conda and dependencies
         run: |
           # Install conda, setup-miniconda messes with the path that messes with the ruby stuff we do later on
-          curl --retry 3 --retry-all-errors -o "${RUNNER_TEMP}/conda.sh" https://repo.anaconda.com/miniconda/Miniconda3-py310_23.5.2-0-MacOSX-x86_64.sh
+          curl --retry 3 --retry-all-errors -o "${RUNNER_TEMP}/conda.sh" "https://repo.anaconda.com/miniconda/Miniconda3-py310_23.5.2-0-MacOSX-$(uname -m).sh"
           chmod +x "${RUNNER_TEMP}/conda.sh"
           /bin/bash "${RUNNER_TEMP}/conda.sh" -b -p "${RUNNER_TEMP}/anaconda"
           echo "${RUNNER_TEMP}/anaconda/bin" >> "${GITHUB_PATH}"
-          echo "DEVELOPER_DIR=/Applications/Xcode_13.3.1.app/Contents/Developer" >> "${GITHUB_ENV}"
+          if [ -d "/Applications/Xcode_14.3.1.app" ]; then
+            echo "DEVELOPER_DIR=/Applications/Xcode_14.3.1.app/Contents/Developer" >> "${GITHUB_ENV}"
+          elif [ -d "/Applications/Xcode_13.3.1.app" ]; then
+            echo "DEVELOPER_DIR=/Applications/Xcode_13.3.1.app/Contents/Developer" >> "${GITHUB_ENV}"
+          fi
       !{{ common.checkout(deep_clone=False, directory="pytorch") }}
       !{{ common.checkout(deep_clone=False, directory="builder", repository=common.builder_repo, branch=common.builder_branch) }}
       - name: Install sccache (only for non-forked PRs, and pushes to trunk)