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annotate dep/fmt/test/cuda-test/CMakeLists.txt @ 345:d085c05247bd

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build: fix windows build
author Paper <paper@paper.us.eu.org>
date Thu, 20 Jun 2024 07:39:01 -0400
parents 1faa72660932
children
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1faa72660932 *: transfer back to cmake from autotools
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1 # We can find some usecases which follow the guide of CMake which uses
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2 # `enable_language(CUDA)` instead of `find_package(CUDA)` and let the CMake
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3 # built-in functions use NVCC.
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4
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5 # See: https://cmake.org/cmake/help/latest/module/FindCUDA.html#replacement
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6 #
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7 # However, this requires CMake version 3.10 or higher and we can't be sure most
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8 # of the CUDA projects are using those.
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9 #
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10 # This test relies on `find_package(CUDA)` in the parent CMake config.
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11
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12 # These can be updated when NVCC becomes ready for C++ 17 features
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13 # https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#cpp14-language-features
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14 set(CMAKE_CUDA_STANDARD 14)
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15 set(CMAKE_CUDA_STANDARD_REQUIRED 14)
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16
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17 # In this test, we assume that the user is going to compile CUDA source code
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18 # with some libraries (fmt in this case).
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19 #
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20 # In addition to that, this test invokes both the C++ host compiler and NVCC
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21 # by providing another (non-CUDA) C++ source code.
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22 if (${CMAKE_VERSION} VERSION_LESS 3.15)
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23 # https://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html
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24 list(APPEND CUDA_NVCC_FLAGS "-std=c++14")
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25 if (MSVC)
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26 # This is the solution of pytorch:
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27 # https://github.com/pytorch/pytorch/pull/7118
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28 list(APPEND CUDA_NVCC_FLAGS "-Xcompiler" "/std:c++14")
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29 list(APPEND CUDA_NVCC_FLAGS "-Xcompiler" "/Zc:__cplusplus")
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30 # for the reason of this -Xcompiler options, see below.
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31 endif ()
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32 cuda_add_executable(fmt-in-cuda-test cuda-cpp14.cu cpp14.cc)
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33 target_compile_features(fmt-in-cuda-test PRIVATE cxx_std_14)
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34 if (MSVC)
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35 # This part is for (non-CUDA) C++ code. MSVC can define incorrect
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36 # `__cplusplus` macro. Fix for the issue is to use additional compiler flag.
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37 #
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38 # See Also:
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39 # https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
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40 # https://github.com/Microsoft/vscode-cpptools/issues/2595
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41 target_compile_options(fmt-in-cuda-test PRIVATE /Zc:__cplusplus /permissive-)
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42 endif ()
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43 else()
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44 # now using a "new" way of handling CUDA
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45 add_executable(fmt-in-cuda-test cuda-cpp14.cu cpp14.cc)
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46 set_target_properties(fmt-in-cuda-test PROPERTIES CUDA_SEPARABLE_COMPILATION ON)
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47 target_compile_features(fmt-in-cuda-test PRIVATE cxx_std_14)
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48 if (MSVC)
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49 # with MSVC, 'cxx_std_14' will only propagate to the host code (MSVC), but will
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50 # not set __cplusplus correctly anyway, while nvcc will ignore it.
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51 # If specified for nvcc on the command line as '-std=c++14' nvcc will emit this
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52 # message instead:
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53 # nvcc warning : The -std=c++14 flag is not supported with the configured host
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54 # compiler. Flag will be ignored.
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55 set_property(SOURCE cuda-cpp14.cu APPEND PROPERTY
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56 COMPILE_OPTIONS -Xcompiler /std:c++14 -Xcompiler /Zc:__cplusplus)
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57 set_property(SOURCE cpp14.cc APPEND PROPERTY
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58 COMPILE_OPTIONS /std:c++14 /Zc:__cplusplus)
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59 endif()
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60 endif()
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61
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62 get_target_property(IN_USE_CUDA_STANDARD fmt-in-cuda-test CUDA_STANDARD)
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63 message(STATUS "cuda_standard: ${IN_USE_CUDA_STANDARD}")
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64
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65 get_target_property(IN_USE_CUDA_STANDARD_REQUIRED
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66 fmt-in-cuda-test CUDA_STANDARD_REQUIRED)
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67 message(STATUS "cuda_standard_required: ${IN_USE_CUDA_STANDARD_REQUIRED}")
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68
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69 # We don't use PUBLIC or other keyword for reasons explained in the
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70 # CUDA_LINK_LIBRARIES_KEYWORD section in
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71 # https://cmake.org/cmake/help/latest/module/FindCUDA.html
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72 target_link_libraries(fmt-in-cuda-test fmt::fmt)
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73