clean up dependencies, other misc. fixes

.github/workflows/build.yaml

@@ -87,6 +87,7 @@ jobs:
       sha: ${{ inputs.sha }}
       date: ${{ inputs.date }}
       package-name: libcugraph
+      package-type: cpp
   wheel-build-pylibcugraph:
     needs: wheel-publish-libcugraph
     secrets: inherit
@@ -107,6 +108,7 @@ jobs:
       sha: ${{ inputs.sha }}
       date: ${{ inputs.date }}
       package-name: pylibcugraph
+      package-type: python
   wheel-build-cugraph:
     needs: wheel-publish-pylibcugraph
     secrets: inherit
@@ -127,3 +129,4 @@ jobs:
       sha: ${{ inputs.sha }}
       date: ${{ inputs.date }}
       package-name: cugraph
+      package-type: cpp

.github/workflows/pr.yaml

@@ -159,7 +159,6 @@ jobs:
       matrix_filter: group_by([.ARCH, (.CUDA_VER|split(".")|map(tonumber)|.[0])]) | map(max_by(.PY_VER|split(".")|map(tonumber)))
       build_type: pull-request
       script: ci/build_wheel_libcugraph.sh
-      node_type: cpu32
   wheel-build-pylibcugraph:
     needs: wheel-build-libcugraph
     secrets: inherit

ci/build_wheel_cugraph.sh

@@ -7,13 +7,8 @@ package_dir="python/cugraph"
 
 RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
 
-# Download the libcugraph and pylibcugraph wheels built in the previous steps and make them
+# Download the libcugraph and pylibcugraph wheels built in the previous step and make them
 # available for pip to find.
-#
-# ensure 'cugraph' wheel builds always use the 'libcugraph' and 'pylibcugraph' 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
 LIBCUGRAPH_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="libcugraph_${RAPIDS_PY_CUDA_SUFFIX}" rapids-download-wheels-from-s3 cpp /tmp/libcugraph_dist)
 PYLIBCUGRAPH_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="pylibcugraph_${RAPIDS_PY_CUDA_SUFFIX}" rapids-download-wheels-from-s3 python /tmp/pylibcugraph_dist)
 
@@ -25,6 +20,8 @@ libcugraph-${RAPIDS_PY_CUDA_SUFFIX} @ file://$(echo ${LIBCUGRAPH_WHEELHOUSE}/lib
 pylibcugraph-${RAPIDS_PY_CUDA_SUFFIX} @ file://$(echo ${PYLIBCUGRAPH_WHEELHOUSE}/pylibcugraph_*.whl)
 EOF
 
+# Using env variable PIP_CONSTRAINT is necessary to ensure the constraints
+# are used when creating the isolated build environment.
 export PIP_CONSTRAINT="${PWD}/constraints.txt"
 
 case "${RAPIDS_CUDA_VERSION}" in

ci/build_wheel_libcugraph.sh

@@ -33,7 +33,6 @@ export PIP_NO_BUILD_ISOLATION=0
 
 RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
 
-# TODO(jameslamb): maybe we can remove this + the `cpu32` node type, now that we're not recompiling RAFT?
 PARALLEL_LEVEL=$(python -c \
   "from math import ceil; from multiprocessing import cpu_count; print(ceil(cpu_count()/4))")
 

ci/build_wheel_pylibcugraph.sh

@@ -7,13 +7,8 @@ package_dir="python/pylibcugraph"
 
 RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen ${RAPIDS_CUDA_VERSION})"
 
-# Download the libcugraph and wheel built in the previous step and make it
+# Download the libcugraph wheel built in the previous step and make it
 # available for pip to find.
-#
-# ensure 'cugraph' wheel builds always use the 'libcugraph' 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
 LIBCUGRAPH_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="libcugraph_${RAPIDS_PY_CUDA_SUFFIX}" rapids-download-wheels-from-s3 cpp /tmp/libcugraph_dist)
 
 # TODO(jameslamb): remove this when https://github.com/rapidsai/raft/pull/2531 is merged
@@ -23,6 +18,8 @@ cat >> ./constraints.txt <<EOF
 libcugraph-${RAPIDS_PY_CUDA_SUFFIX} @ file://$(echo ${LIBCUGRAPH_WHEELHOUSE}/libcugraph_*.whl)
 EOF
 
+# Using env variable PIP_CONSTRAINT is necessary to ensure the constraints
+# are used when creating the isolated build environment.
 export PIP_CONSTRAINT="${PWD}/constraints.txt"
 
 PARALLEL_LEVEL=$(python -c \

dependencies.yaml

@@ -137,7 +137,6 @@ files:
       - common_build
       - depends_on_librmm
       - depends_on_libraft
-      - python_build_cythonize
   py_run_libcugraph:
     output: pyproject
     pyproject_dir: python/libcugraph
@@ -146,7 +145,6 @@ files:
     includes:
       - cuda_wheels
       - depends_on_libraft
-      - depends_on_rmm
   py_build_pylibcugraph:
     output: pyproject
     pyproject_dir: python/pylibcugraph

python/libcugraph/CMakeLists.txt

@@ -25,7 +25,7 @@ project(
 option(USE_CUDA_MATH_WHEELS "Use the CUDA math wheels instead of the system libraries" OFF)
 
 # Check if cugraph is already available. If so, it is the user's responsibility to ensure that the
-# CMake package is also available at build time of the Python cugraph package.
+# CMake package is also available at build time of Python packages that need libcugraph.
 find_package(cugraph "${RAPIDS_VERSION}")
 
 if(cugraph_FOUND)

python/libcugraph/libcugraph/load.py

@@ -21,7 +21,7 @@
 # namespace. This allows libraries that express a dependency on
 # this library to be loaded later and successfully satisfy this dependency
 # without polluting the global symbol table with symbols from
-# libcudf that could conflict with symbols from other DSOs.
+# libcugraph that could conflict with symbols from other DSOs.
 PREFERRED_LOAD_FLAG = ctypes.RTLD_LOCAL
 
 
@@ -45,7 +45,7 @@ def _load_wheel_installation(soname: str):
 def load_library():
     """Dynamically load libcugraph.so and its dependencies"""
     try:
-        # libraft must be loaded before libcugraphl because libcugraph
+        # libraft must be loaded before libcugraph because libcugraph
         # references its symbols
         import libraft
 

python/libcugraph/pyproject.toml

@@ -43,7 +43,6 @@ dependencies = [
     "nvidia-curand",
     "nvidia-cusolver",
     "nvidia-cusparse",
-    "rmm==25.2.*,>=0.0.0a0",
 ] # This list was generated by `rapids-dependency-file-generator`. To make changes, edit ../../dependencies.yaml and run `rapids-dependency-file-generator`.
 
 [project.urls]
@@ -82,7 +81,6 @@ dependencies-file = "../../dependencies.yaml"
 matrix-entry = "cuda_suffixed=true;use_cuda_wheels=true"
 requires = [
     "cmake>=3.26.4,!=3.30.0",
-    "cython>=3.0.0",
     "libraft==25.2.*,>=0.0.0a0",
     "librmm==25.2.*,>=0.0.0a0",
     "ninja",