Use new rapids-logger library

ci/build_wheel_libucxx.sh

@@ -34,6 +34,7 @@ export SKBUILD_CMAKE_ARGS="-DUCXX_ENABLE_RMM=ON"
 mkdir -p "${package_dir}/final_dist"
 python -m auditwheel repair \
     --exclude "libucp.so.0" \
+    --exclude librapids_logger.so \
     -w "${package_dir}/final_dist" \
     ${package_dir}/dist/*
 

ci/build_wheel_ucxx.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright (c) 2024, NVIDIA CORPORATION.
+# Copyright (c) 2024-2025, NVIDIA CORPORATION.
 
 set -euo pipefail
 
@@ -25,6 +25,7 @@ mkdir -p "${package_dir}/final_dist"
 python -m auditwheel repair \
     --exclude "libucp.so.0" \
     --exclude "libucxx.so" \
+    --exclude librapids_logger.so \
     -w "${package_dir}/final_dist" \
     ${package_dir}/dist/*
 

conda/environments/all_cuda-118_arch-x86_64.yaml

@@ -21,7 +21,6 @@ dependencies:
 - dask-cuda==25.4.*,>=0.0.0a0
 - dask-cudf==25.4.*,>=0.0.0a0
 - doxygen=1.9.1
-- fmt>=11.0.2,<12
 - librmm==25.4.*,>=0.0.0a0
 - libtool
 - ninja
@@ -40,6 +39,5 @@ dependencies:
 - rmm==25.4.*,>=0.0.0a0
 - scikit-build-core>=0.10.0
 - setuptools>=64.0.0
-- spdlog>=1.14.1,<1.15
 - ucx>=1.15.0,<1.19
 name: all_cuda-118_arch-x86_64

conda/environments/all_cuda-128_arch-x86_64.yaml

@@ -13,6 +13,7 @@ dependencies:
 - cloudpickle
 - cmake>=3.26.4,!=3.30.0
 - cuda-cudart-dev
+- cuda-nvcc
 - cuda-version=12.8
 - cudf==25.4.*,>=0.0.0a0
 - cupy>=12.0.0
@@ -21,7 +22,6 @@ dependencies:
 - dask-cuda==25.4.*,>=0.0.0a0
 - dask-cudf==25.4.*,>=0.0.0a0
 - doxygen=1.9.1
-- fmt>=11.0.2,<12
 - librmm==25.4.*,>=0.0.0a0
 - libtool
 - ninja
@@ -40,6 +40,5 @@ dependencies:
 - rmm==25.4.*,>=0.0.0a0
 - scikit-build-core>=0.10.0
 - setuptools>=64.0.0
-- spdlog>=1.14.1,<1.15
 - ucx>=1.15.0,<1.19
 name: all_cuda-128_arch-x86_64

cpp/CMakeLists.txt

@@ -1,5 +1,5 @@
 # =================================================================================
-# SPDX-FileCopyrightText: Copyright (c) 2022-2024, NVIDIA CORPORATION & AFFILIATES.
+# SPDX-FileCopyrightText: Copyright (c) 2022-2025, NVIDIA CORPORATION & AFFILIATES.
 # SPDX-License-Identifier: BSD 3-Clause License
 # =================================================================================
 
@@ -192,7 +192,7 @@ if(UCXX_ENABLE_RMM)
     )
 
     # Define spdlog level
-    target_compile_definitions(ucxx PUBLIC UCXX_ENABLE_RMM "SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_${RMM_LOGGING_LEVEL}")
+    target_compile_definitions(ucxx PUBLIC UCXX_ENABLE_RMM "RMM_LOG_ACTIVE_LEVEL=RAPIDS_LOGGER_LEVEL_${RMM_LOGGING_LEVEL}")
 endif()
 
 # Specify the target module library dependencies

cpp/python/CMakeLists.txt

@@ -1,5 +1,5 @@
 # ======================================================================================================
-# SPDX-FileCopyrightText: Copyright (c) 2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-FileCopyrightText: Copyright (c) 2023-2025, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: BSD 3-Clause License
 # ======================================================================================================
 
@@ -118,9 +118,7 @@ target_compile_definitions(
   ucxx_python PUBLIC "$<$<COMPILE_LANGUAGE:CXX>:${UCXX_CXX_DEFINITIONS}>"
 )
 
-target_compile_definitions(ucxx_python PUBLIC UCXX_ENABLE_PYTHON)
-# Define spdlog level
-target_compile_definitions(ucxx_python PUBLIC "SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_${RMM_LOGGING_LEVEL}")
+target_compile_definitions(ucxx_python PUBLIC UCXX_ENABLE_PYTHON "RMM_LOG_ACTIVE_LEVEL=RAPIDS_LOGGER_LEVEL_${RMM_LOGGING_LEVEL}")
 
 # Specify the target module library dependencies
 target_link_libraries(

dependencies.yaml

@@ -79,6 +79,7 @@ files:
     extras:
       table: project
     includes:
+      - depends_on_librmm
       - depends_on_ucx_run
   py_build_ucxx:
     output: pyproject
@@ -156,10 +157,8 @@ dependencies:
           - c-compiler
           - cxx-compiler
           - &cmake_ver cmake>=3.26.4,!=3.30.0
-          - fmt>=11.0.2,<12
           - librmm==25.4.*,>=0.0.0a0
           - ninja
-          - spdlog>=1.14.1,<1.15
       - output_types: [requirements, pyproject]
         packages:
           - *cmake_ver
@@ -241,6 +240,7 @@ dependencies:
               cuda: "12.*"
             packages:
               - cuda-cudart-dev
+              - cuda-nvcc
   dev:
     common:
       - output_types: [conda]

python/libucxx/libucxx/load.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2024, NVIDIA CORPORATION.
+# Copyright (c) 2024-2025, NVIDIA CORPORATION.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -48,10 +48,12 @@ def load_library():
     # symbols. Otherwise, we assume that the library was installed in a system path
     # that ld can find.
     try:
+        import librmm
         import libucx
     except ModuleNotFoundError:
         pass
     else:
+        librmm.load_library()
         libucx.load_library()
         del libucx
 

python/libucxx/pyproject.toml

@@ -1,4 +1,4 @@
-# Copyright (c) 2024, NVIDIA CORPORATION. All rights reserved.
+# Copyright (c) 2024-2025, NVIDIA CORPORATION. All rights reserved.
 # See file LICENSE for terms.
 
 [build-system]
@@ -29,6 +29,7 @@ classifiers = [
     "Programming Language :: Python :: 3",
 ]
 dependencies = [
+    "librmm==25.4.*,>=0.0.0a0",
     "libucx>=1.15.0,<1.19",
 ] # This list was generated by `rapids-dependency-file-generator`. To make changes, edit ../../dependencies.yaml and run `rapids-dependency-file-generator`.