Enable OMP and nonblocking backends conditionally for Linux runners in CMake build

Author: Denis Jelovina

.github/workflows/pyalp-publish.yml

@@ -168,8 +168,19 @@ jobs:
             # interprocedural optimization (LTO) to improve portability of the produced wheels.
             PORTABLE_FLAG="-DALP_PORTABLE_BUILD=ON"
             LTO_FLAG="-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=OFF"
-            cmake -S . -B "${BUILD_DIR}" -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_PYALP=ON -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_FIND_FRAMEWORK=NEVER ${MACOS_FLAGS} ${NUMA_FLAG} ${CMAKE_PREFIX_HINT:-} ${OSX_DEPLOY_FLAG:-} ${PORTABLE_FLAG} ${LTO_FLAG} -DPython3_EXECUTABLE="${PYEXEC}" -DALP_VERSION="${ALP_VERSION}" -DALP_GIT_COMMIT_SHA="${ALP_GIT_COMMIT}" -DALP_GIT_BRANCH="${ALP_GIT_BRANCH}" -Dpyalp_VERSION="${PYALP_VERSION}" -DWITH_OMP_BACKEND=ON -DWITH_NONBLOCKING_BACKEND=ON
-            cmake --build "${BUILD_DIR}" --target pyalp_ref pyalp_omp pyalp_nonblocking --parallel
+            # Only enable OMP and nonblocking backends on Linux runners where libomp
+            # and required build support are available. macOS wheels will build the
+            # stable reference backend only to avoid SDK/ABI compile issues.
+            if [ "$(uname -s)" = "Linux" ]; then
+              BACKEND_FLAGS="-DWITH_OMP_BACKEND=ON -DWITH_NONBLOCKING_BACKEND=ON"
+              BUILD_TARGETS="pyalp_ref pyalp_omp pyalp_nonblocking"
+            else
+              BACKEND_FLAGS="-DWITH_OMP_BACKEND=OFF -DWITH_NONBLOCKING_BACKEND=OFF"
+              BUILD_TARGETS="pyalp_ref"
+            fi
+
+            cmake -S . -B "${BUILD_DIR}" -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_PYALP=ON -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DCMAKE_FIND_FRAMEWORK=NEVER ${MACOS_FLAGS} ${NUMA_FLAG} ${CMAKE_PREFIX_HINT:-} ${OSX_DEPLOY_FLAG:-} ${PORTABLE_FLAG} ${LTO_FLAG} ${BACKEND_FLAGS} -DPython3_EXECUTABLE="${PYEXEC}" -DALP_VERSION="${ALP_VERSION}" -DALP_GIT_COMMIT_SHA="${ALP_GIT_COMMIT}" -DALP_GIT_BRANCH="${ALP_GIT_BRANCH}" -Dpyalp_VERSION="${PYALP_VERSION}"
+            cmake --build "${BUILD_DIR}" --target ${BUILD_TARGETS} --parallel
             # Debug: show the generated metadata file (if present) to the CI logs
             echo "[cibw] Checking for generated metadata file: ${CMAKE_BUILD_DIR}/pyalp_metadata.py"
             if [ -f "${CMAKE_BUILD_DIR}/pyalp_metadata.py" ]; then

pyalp/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyalp"
-version = "0.8.5"
+version = "0.8.8"
 description = "Python bindings for ALP GraphBLAS (minimal package layout)"
 authors = [ { name = "ALP" } ]
 readme = "README.md"