build wheels without build isolation

.pre-commit-config.yaml

@@ -49,7 +49,7 @@ repos:
                 - --fix
                 - --rapids-version=24.12
       - repo: https://github.com/rapidsai/dependency-file-generator
-        rev: v1.13.11
+        rev: v1.16.0
         hooks:
             - id: rapids-dependency-file-generator
               args: ["--clean"]

ci/build_cpp.sh

@@ -17,7 +17,11 @@ rapids-print-env
 
 rapids-logger "Begin C++ and Python builds"
 
+sccache --zero-stats
+
 rapids-conda-retry mambabuild \
   conda/recipes/ucxx
 
+sccache --show-adv-stats
+
 rapids-upload-conda-to-s3 cpp

ci/build_wheel.sh

@@ -9,33 +9,18 @@ package_dir=$2
 source rapids-configure-sccache
 source rapids-date-string
 
-RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
-
 rapids-generate-version > ./VERSION
 
-if [[ ${package_name} == "distributed-ucxx" ]]; then
-    python -m pip wheel "${package_dir}/" -w "${package_dir}/dist" -vvv --no-deps --disable-pip-version-check
-
-    RAPIDS_PY_WHEEL_NAME="distributed_ucxx_${RAPIDS_PY_CUDA_SUFFIX}" rapids-upload-wheels-to-s3 python ${package_dir}/dist
-elif [[ ${package_name} == "libucxx" ]]; then
-    SKBUILD_CMAKE_ARGS="-DUCXX_ENABLE_RMM=ON" \
-        python -m pip wheel "${package_dir}"/ -w "${package_dir}"/dist -vvv --no-deps --disable-pip-version-check
-
-    python -m auditwheel repair -w ${package_dir}/final_dist --exclude "libucp.so.0" ${package_dir}/dist/*
-
-    RAPIDS_PY_WHEEL_NAME="libucxx_${RAPIDS_PY_CUDA_SUFFIX}" rapids-upload-wheels-to-s3 cpp ${package_dir}/final_dist
-elif [[ ${package_name} == "ucxx" ]]; then
-    CPP_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="libucxx_${RAPIDS_PY_CUDA_SUFFIX}" rapids-download-wheels-from-s3 cpp /tmp/libucxx_dist)
-    echo "libucxx-${RAPIDS_PY_CUDA_SUFFIX} @ file://$(echo ${CPP_WHEELHOUSE}/libucxx_*.whl)" > "${package_dir}/constraints.txt"
+cd "${package_dir}"
 
-    PIP_CONSTRAINT="${package_dir}/constraints.txt" \
-    SKBUILD_CMAKE_ARGS="-DFIND_UCXX_CPP=ON;-DCMAKE_INSTALL_LIBDIR=ucxx/lib64;-DCMAKE_INSTALL_INCLUDEDIR=ucxx/include" \
-        python -m pip wheel "${package_dir}"/ -w "${package_dir}"/dist -vvv --no-deps --disable-pip-version-check
+sccache --zero-stats
 
-    python -m auditwheel repair -w ${package_dir}/final_dist --exclude "libucp.so.0" --exclude "libucxx.so" ${package_dir}/dist/*
+rapids-logger "Building '${package_name}' wheel"
+python -m pip wheel \
+    -w dist \
+    -v \
+    --no-deps \
+    --disable-pip-version-check \
+    .
 
-    RAPIDS_PY_WHEEL_NAME="ucxx_${RAPIDS_PY_CUDA_SUFFIX}" rapids-upload-wheels-to-s3 python ${package_dir}/final_dist
-else
-  echo "Unknown package '${package_name}'"
-  exit 1
-fi
+sccache --show-adv-stats

ci/build_wheel_distributed_ucxx.sh

@@ -5,4 +5,8 @@ set -euo pipefail
 
 package_dir="python/distributed-ucxx"
 
-./ci/build_wheel.sh distributed-ucxx ${package_dir}
+RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
+
+./ci/build_wheel.sh distributed-ucxx "${package_dir}"
+
+RAPIDS_PY_WHEEL_NAME="distributed_ucxx_${RAPIDS_PY_CUDA_SUFFIX}" rapids-upload-wheels-to-s3 python "${package_dir}/dist"

ci/build_wheel_libucxx.sh

@@ -3,6 +3,38 @@
 
 set -euo pipefail
 
+package_name="libucxx"
 package_dir="python/libucxx"
 
-./ci/build_wheel.sh libucxx ${package_dir}
+RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
+
+rapids-logger "Generating build requirements"
+
+rapids-dependency-file-generator \
+  --output requirements \
+  --file-key "py_build_${package_name}" \
+  --file-key "py_rapids_build_${package_name}" \
+  --matrix "cuda=${RAPIDS_CUDA_VERSION%.*};arch=$(arch);py=${RAPIDS_PY_VERSION};cuda_suffixed=true" \
+| tee /tmp/requirements-build.txt
+
+rapids-logger "Installing build requirements"
+python -m pip install \
+    -v \
+    --prefer-binary \
+    -r /tmp/requirements-build.txt
+
+# build with '--no-build-isolation', for better sccache hit rate
+# 0 really means "add --no-build-isolation" (ref: https://github.com/pypa/pip/issues/5735)
+export PIP_NO_BUILD_ISOLATION=0
+
+export SKBUILD_CMAKE_ARGS="-DUCXX_ENABLE_RMM=ON"
+
+./ci/build_wheel.sh "${package_name}" "${package_dir}"
+
+mkdir -p "${package_dir}/final_dist"
+python -m auditwheel repair \
+    --exclude "libucp.so.0" \
+    -w "${package_dir}/final_dist" \
+    ${package_dir}/dist/*
+
+RAPIDS_PY_WHEEL_NAME="${package_name}_${RAPIDS_PY_CUDA_SUFFIX}" rapids-upload-wheels-to-s3 cpp "${package_dir}/final_dist"

ci/build_wheel_ucxx.sh

@@ -3,6 +3,29 @@
 
 set -euo pipefail
 
+package_name="ucxx"
 package_dir="python/ucxx"
 
-./ci/build_wheel.sh ucxx ${package_dir}
+RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
+
+# Downloads libucxx wheel from this current build,
+# then ensures 'ucxx' wheel builds always use the 'libucxx' just built in the same CI run.
+#
+# Using env variable PIP_CONSTRAINT is necessary to ensure the constraints
+# are used when creating the isolated build environment.
+RAPIDS_PY_WHEEL_NAME="libucxx_${RAPIDS_PY_CUDA_SUFFIX}" rapids-download-wheels-from-s3 cpp /tmp/libucxx_dist
+echo "libucxx-${RAPIDS_PY_CUDA_SUFFIX} @ file://$(echo /tmp/libucxx_dist/libucxx_*.whl)" > /tmp/constraints.txt
+export PIP_CONSTRAINT="/tmp/constraints.txt"
+
+export SKBUILD_CMAKE_ARGS="-DFIND_UCXX_CPP=ON;-DCMAKE_INSTALL_LIBDIR=ucxx/lib64;-DCMAKE_INSTALL_INCLUDEDIR=ucxx/include"
+
+./ci/build_wheel.sh "${package_name}" "${package_dir}"
+
+mkdir -p "${package_dir}/final_dist"
+python -m auditwheel repair \
+    --exclude "libucp.so.0" \
+    --exclude "libucxx.so" \
+    -w "${package_dir}/final_dist" \
+    ${package_dir}/dist/*
+
+RAPIDS_PY_WHEEL_NAME="${package_name}_${RAPIDS_PY_CUDA_SUFFIX}" rapids-upload-wheels-to-s3 python "${package_dir}/final_dist"