Merge pull request #752 from ldorau/Fix_cuda_shared_memory_standalone_example

Fix cuda_shared_memory standalone example

Author: lukaszstolarczuk

examples/cmake/FindCUDA.cmake

@@ -0,0 +1,35 @@
+# Copyright (C) 2024 Intel Corporation
+# Under the Apache License v2.0 with LLVM Exceptions. See LICENSE.TXT.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+message(STATUS "Checking for module 'cuda' using find_library()")
+
+find_library(CUDA_LIBRARY NAMES libcuda cuda)
+set(CUDA_LIBRARIES ${CUDA_LIBRARY})
+
+get_filename_component(CUDA_LIB_DIR ${CUDA_LIBRARIES} DIRECTORY)
+set(CUDA_LIBRARY_DIRS ${CUDA_LIB_DIR})
+
+if(WINDOWS)
+    find_file(CUDA_DLL NAMES "bin/cuda.dll" "cuda.dll")
+    get_filename_component(CUDA_DLL_DIR ${CUDA_DLL} DIRECTORY)
+    set(CUDA_DLL_DIRS ${CUDA_DLL_DIR})
+endif()
+
+if(CUDA_LIBRARY)
+    message(STATUS "  Found cuda using find_library()")
+    message(STATUS "    CUDA_LIBRARIES = ${CUDA_LIBRARIES}")
+    message(STATUS "    CUDA_INCLUDE_DIRS = ${CUDA_INCLUDE_DIRS}")
+    message(STATUS "    CUDA_LIBRARY_DIRS = ${CUDA_LIBRARY_DIRS}")
+    if(WINDOWS)
+        message(STATUS "    CUDA_DLL_DIRS = ${CUDA_DLL_DIRS}")
+    endif()
+else()
+    set(MSG_NOT_FOUND "cuda NOT found (set CMAKE_PREFIX_PATH to point the "
+                      "location)")
+    if(CUDA_FIND_REQUIRED)
+        message(FATAL_ERROR ${MSG_NOT_FOUND})
+    else()
+        message(WARNING ${MSG_NOT_FOUND})
+    endif()
+endif()

examples/cuda_shared_memory/CMakeLists.txt

@@ -21,6 +21,8 @@ if(NOT LIBHWLOC_FOUND)
     find_package(LIBHWLOC 2.3.0 REQUIRED hwloc)
 endif()
 
+find_package(CUDA REQUIRED cuda)
+
 include(FetchContent)
 
 set(CUDA_REPO "https://gitlab.com/nvidia/headers/cuda-individual/cudart.git")
@@ -43,17 +45,23 @@ set(CUDA_INCLUDE_DIRS
     ${cuda-headers_SOURCE_DIR}
     CACHE PATH "Path to CUDA headers")
 message(STATUS "CUDA include directory: ${CUDA_INCLUDE_DIRS}")
+
 # build the example
 set(EXAMPLE_NAME umf_example_cuda_shared_memory)
 add_executable(${EXAMPLE_NAME} cuda_shared_memory.c)
 target_include_directories(
     ${EXAMPLE_NAME} PRIVATE ${CUDA_INCLUDE_DIRS} ${LIBUMF_INCLUDE_DIRS}
                             ${UMF_EXAMPLE_DIR}/common)
-target_link_directories(${EXAMPLE_NAME} PRIVATE ${LIBUMF_LIBRARY_DIRS}
-                        ${LIBHWLOC_LIBRARY_DIRS})
+target_link_directories(
+    ${EXAMPLE_NAME}
+    PRIVATE
+    ${LIBUMF_LIBRARY_DIRS}
+    ${LIBHWLOC_LIBRARY_DIRS}
+    ${CUDA_LIBRARY_DIRS})
 target_link_options(${EXAMPLE_NAME} PRIVATE "-Wl,--start-group")
-target_link_libraries(${EXAMPLE_NAME} PRIVATE stdc++ libdisjoint_pool.a cuda
-                                              ${LIBUMF_LIBRARIES})
+target_link_libraries(
+    ${EXAMPLE_NAME} PRIVATE stdc++ libdisjoint_pool.a ${CUDA_LIBRARIES}
+                            ${LIBUMF_LIBRARIES})
 
 # an optional part - adds a test of this example
 add_test(