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ci: avoid unbounded parallelism (#16966)

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build-darwin has gotten very slow in the past few releases, most likely due to unbounded parallelism in the MLX build causing the builder to thrash
This commit is contained in:
Daniel Hiltgen
2026-06-30 10:49:55 -07:00
committed by GitHub
parent 710292ff4f
commit 8e7be3aed1
1 changed files with 6 additions and 1 deletions
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scripts/build_darwin.sh
+6 -1
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@@ -38,6 +38,11 @@ done
shift $(( $OPTIND - 1 )) shift $(( $OPTIND - 1 ))
_build_darwin() { _build_darwin() {
BUILD_CPUS=$(getconf _NPROCESSORS_ONLN)
BUILD_JOBS=${OLLAMA_BUILD_PARALLEL:-$BUILD_CPUS}
BUILD_LOAD=${OLLAMA_BUILD_LOAD:-$BUILD_CPUS}
status "Build parallelism: $BUILD_JOBS, load limit: $BUILD_LOAD"
SOURCE_BUILD=build/darwin-sources SOURCE_BUILD=build/darwin-sources
status "Preparing shared native sources" status "Preparing shared native sources"
cmake -S . -B "$SOURCE_BUILD" -DOLLAMA_MLX_BACKENDS=metal_v3 -DOLLAMA_LLAMA_BACKENDS= cmake -S . -B "$SOURCE_BUILD" -DOLLAMA_MLX_BACKENDS=metal_v3 -DOLLAMA_LLAMA_BACKENDS=
@@ -81,7 +86,7 @@ _build_darwin() {
$MLX_EXTRA_ARGS $MLX_EXTRA_ARGS
GOOS=darwin GOARCH=$ARCH CGO_ENABLED=1 CGO_CFLAGS="$MLX_CGO_CFLAGS" CGO_LDFLAGS="$MLX_CGO_LDFLAGS" \ GOOS=darwin GOARCH=$ARCH CGO_ENABLED=1 CGO_CFLAGS="$MLX_CGO_CFLAGS" CGO_LDFLAGS="$MLX_CGO_LDFLAGS" \
cmake --build "$BUILD_DIR" --target ollama-local --target ollama-mlx-backends --parallel cmake --build "$BUILD_DIR" --target ollama-local --target ollama-mlx-backends --parallel "$BUILD_JOBS" -- -l "$BUILD_LOAD"
done done
} }