Wheels: build the two Windows architectures in parallel jobs - #223
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The Windows wheel job built both architectures one after the other: x86_64 in ~7 min, then the cross-compiled ARM64 in ~7 min, for 14.5 min total. That was the slowest job in every release, and neither build needs the other.
This gives each architecture its own matrix entry. Both run on the x86_64 runner, since ARM64 is still cross-compiled;
CIBW_ARCHS_WINDOWSnow comes frommatrix.archs.wheel-windows-x86_64andwheel-windows-arm64. The publish jobs already collectwheel-*.win_arm64.Result, from a dispatched wheel build: the two Windows jobs took 7.3 min (x86_64) and 7.9 min (ARM64), in parallel, against 14.5 min as one job. The run is now bounded by ~7.9 min, level with macOS x86_64 (7.9). Every job passed.
The run produced all 7 artifacts (6 wheels plus the sdist).
wheel-windows-x86_64andwheel-windows-arm64hold exactly…-win_amd64.whland…-win_arm64.whl, so a release still publishes the same 7 files.🤖 Generated with Claude Code