Build native arch by default, update rapids-cmake.

Author: alliepiper

CMakeLists.txt

@@ -11,8 +11,13 @@ else()
   set(NVBench_TOPLEVEL_PROJECT OFF)
 endif()
 
+# Default to native if no cuda arches are specified:
+if (NOT (DEFINED CMAKE_CUDA_ARCHITECTURES OR DEFINED ENV{CUDAARCHS}))
+  set(CMAKE_CUDA_ARCHITECTURES "native")
+endif()
+
 include(cmake/NVBenchRapidsCMake.cmake)
-nvbench_load_rapids_cmake()
+nvbench_load_rapids_cmake(25.12)
 
 project(NVBench
   LANGUAGES CUDA CXX

cmake/NVBenchRapidsCMake.cmake

@@ -1,12 +1,13 @@
 # Called before project(...)
-macro(nvbench_load_rapids_cmake)
+macro(nvbench_load_rapids_cmake version)
   # - Including directly, see https://github.com/rapidsai/rmm/pull/1886
   # - Versioned download URL:
   #   https://raw.githubusercontent.com/rapidsai/rapids-cmake/branch-XX.YY/RAPIDS.cmake
   # - This macro is always called before project() in the root CMakeLists.txt, so:
   #   - we can't just use NVBench_SOURCE_DIR, it's not defined yet.
   #   - We can't rely on CMAKE_CURRENT_LIST_DIR because of macro expansion.
   #   - We can fallback to CURRENT_SOURCE_DIR because we know this will be expanded in the root:
+  set(rapids-cmake-version ${version})
   include("${CMAKE_CURRENT_SOURCE_DIR}/cmake/RAPIDS.cmake")
 
   include(rapids-cmake)

cmake/RAPIDS.cmake

@@ -16,11 +16,13 @@
 #
 # This is the preferred entry point for projects using rapids-cmake
 #
+# Enforce the minimum required CMake version for all users
+cmake_minimum_required(VERSION 3.30.4 FATAL_ERROR)
 
 # Allow users to control which version is used
-if(NOT rapids-cmake-version)
-  # Define a default version if the user doesn't set one
-  set(rapids-cmake-version 25.04)
+if(NOT (rapids-cmake-branch OR rapids-cmake-version))
+  message(FATAL_ERROR "The CMake variable `rapids-cmake-branch` or `rapids-cmake-version` must be defined"
+  )
 endif()
 
 # Allow users to control which GitHub repo is fetched
@@ -66,26 +68,18 @@ if(NOT rapids-cmake-url)
   endif()
 endif()
 
-if(POLICY CMP0135)
-  cmake_policy(PUSH)
-  cmake_policy(SET CMP0135 NEW)
-endif()
 include(FetchContent)
 if(rapids-cmake-fetch-via-git)
-  FetchContent_Declare(rapids-cmake
-    GIT_REPOSITORY "${rapids-cmake-url}"
-    GIT_TAG "${rapids-cmake-value-to-clone}")
+  FetchContent_Declare(rapids-cmake GIT_REPOSITORY "${rapids-cmake-url}"
+                       GIT_TAG "${rapids-cmake-value-to-clone}")
 else()
   string(APPEND rapids-cmake-url "${rapids-cmake-value-to-clone}")
   FetchContent_Declare(rapids-cmake URL "${rapids-cmake-url}")
 endif()
-if(POLICY CMP0135)
-  cmake_policy(POP)
-endif()
 FetchContent_GetProperties(rapids-cmake)
 if(rapids-cmake_POPULATED)
-  # Something else has already populated rapids-cmake, only thing
-  # we need to do is setup the CMAKE_MODULE_PATH
+  # Something else has already populated rapids-cmake, only thing we need to do is setup the
+  # CMAKE_MODULE_PATH
   if(NOT "${rapids-cmake-dir}" IN_LIST CMAKE_MODULE_PATH)
     list(APPEND CMAKE_MODULE_PATH "${rapids-cmake-dir}")
   endif()