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社区首页 >问答首页 >使用Cmake将waLBerla链接到我自己的代码

问使用Cmake将waLBerla链接到我自己的代码
EN

Stack Overflow用户
提问于 2021-08-12 10:54:58
回答 1查看 39关注 0票数 0

我想使用waLBerla (website和gitlab)，这是一个C++库，可以用来模拟某些物理行为，比如使用Lattice Boltzmann method的流体动力学，但是在如何正确设置我的CMakeLists.txt方面有很大的困难，因为我没有太多的经验。

我按照说明安装了这个库，使用了一些依赖项，比如OpenMP、CUDA和OpenMESH，它们运行得很好。

但是，当我试图编译其中一个教程时，我就是不能让它工作。到目前为止，我有以下Cmake文件，其中我手动列出了在编译waLBerla时构建的所有静态库：

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CMAKE_MINIMUM_REQUIRED (VERSION 3.20) 
set (CMAKE_CXX_STANDARD 20)
PROJECT (sugar_dissolving) 
add_executable(${PROJECT_NAME} main.cpp)

find_package( waLBerla REQUIRED)
find_package(MPI REQUIRED)

find_package(OpenMP REQUIRED)
target_link_libraries(sugar_dissolving PRIVATE OpenMP::OpenMP_CXX)

 target_link_libraries(sugar_dissolving PRIVATE 
     ${MPI_LIBRARIES}
     /usr/local/lib/libcore.a
     /usr/local/lib/libblockforest.a
     /usr/local/lib/liblbm.a
     /usr/local/lib/libboundary.a
     /usr/local/lib/libdomain_decomposition.a
     /usr/local/lib/libblas.a
     /usr/local/lib/libfield.a
     /usr/local/lib/libexecutiontree.a
     /usr/local/lib/liblapack.a
     /usr/local/lib/libgeometry.a
     /usr/local/lib/libmesh.a
     /usr/local/lib/libgather.a
     /usr/local/lib/libtimeloop.a
     /usr/local/lib/libvtk.a
     /usr/local/lib/libcuda.a
     /usr/local/lib/libgui.a
     /usr/local/lib/liblbm_mesapd_coupling.a
     /usr/local/lib/libmesa_pd.a
     /usr/local/lib/libpde.a
     /usr/local/lib/libpe.a
     /usr/local/lib/libpe_coupling.a
     /usr/local/lib/libpostprocessing.a
     /usr/local/lib/libpython_coupling.a
     /usr/local/lib/libsqlite.a
     <private>/walberla/build/extern/lodepng/liblodepng.a
 )

waLBerla在构建时会导出一个包，所以我使用find_package()。起初它找不到waLBerla-config.cmake文件，所以我手动将其复制到包注册表中，但我认为这不是解决问题的方法？一般来说，手动列出所有的库会让人感觉很奇怪。在这种情况下，我不知道是否可以提前知道我需要哪些库。

它确实设法编译了教程，即正确地找到了头文件，但在链接阶段失败了。它知道在哪里可以找到大多数函数，但是由于某些原因，libcore.a中的一些数学函数没有被正确地找到。对于一些由waLBerla定义的MPI函数也是如此：

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/usr/bin/ld: /usr/local/lib/libblockforest.a(Initialization.cpp.o): in function `walberla::blockforest::calculateCellDistribution(walberla::math::Vector3<unsigned long> const&, unsigned long, walberla::math::Vector3<unsigned long>&, walberla::math::Vector3<unsigned long>&)':
Initialization.cpp:(.text+0xbfc): undefined reference to `walberla::math::getFactors(unsigned long, unsigned long, std::vector<double, std::allocator<double> > const&)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(SetupBlockForest.cpp.o): in function `walberla::blockforest::SetupBlockForest::getNextBlock(walberla::blockforest::SetupBlock const*) const':
SetupBlockForest.cpp:(.text+0x117f): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(SetupBlockForest.cpp.o): in function `walberla::blockforest::SetupBlockForest::getNextBlock(walberla::blockforest::SetupBlock const*)':
SetupBlockForest.cpp:(.text+0x1287): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(SetupBlockForest.cpp.o): in function `walberla::blockforest::SetupBlockForest::getBlock(walberla::blockforest::BlockID const&) const':
SetupBlockForest.cpp:(.text+0x132d): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x13b8): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x142c): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(SetupBlockForest.cpp.o):SetupBlockForest.cpp:(.text+0x3e06): more undefined references to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)' follow
/usr/bin/ld: /usr/local/lib/libblockforest.a(SetupBlockForest.cpp.o): in function `walberla::blockforest::SetupBlockForest::toStream(std::ostream&) const':
SetupBlockForest.cpp:(.text+0x9379): undefined reference to `walberla::math::Sample::variance(double) const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x93cd): undefined reference to `walberla::math::Sample::relativeStdDeviation() const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x95d9): undefined reference to `walberla::math::Sample::variance(double) const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x962d): undefined reference to `walberla::math::Sample::relativeStdDeviation() const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x9851): undefined reference to `walberla::math::Sample::variance(double) const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x98a8): undefined reference to `walberla::math::Sample::relativeStdDeviation() const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x9f00): undefined reference to `walberla::math::Sample::variance(double) const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x9f53): undefined reference to `walberla::math::Sample::relativeStdDeviation() const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0xa160): undefined reference to `walberla::math::Sample::variance(double) const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0xa1b3): undefined reference to `walberla::math::Sample::relativeStdDeviation() const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0xa3d0): undefined reference to `walberla::math::Sample::variance(double) const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0xa426): undefined reference to `walberla::math::Sample::relativeStdDeviation() const'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0xa576): undefined reference to `walberla::real_comparison::Epsilon<double>::value'
/usr/bin/ld: /usr/local/lib/libblockforest.a(SetupBlockForest.cpp.o): in function `walberla::blockforest::SetupBlockForest::init(walberla::math::GenericAABB<double> const&, unsigned long, unsigned long, unsigned long, bool, bool, bool, walberla::Set<walberla::uid::UID<walberla::uid::suidgenerator::S> > const&)':
SetupBlockForest.cpp:(.text+0x14267): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x1454a): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: SetupBlockForest.cpp:(.text+0x159c1): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(StructuredBlockForest.cpp.o): in function `walberla::blockforest::StructuredBlockForest::blockExists(walberla::cell::Cell const&, unsigned long) const':
StructuredBlockForest.cpp:(.text+0x24d): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(StructuredBlockForest.cpp.o): in function `walberla::blockforest::StructuredBlockForest::getBlockID(walberla::domain_decomposition::IBlockID&, walberla::cell::Cell const&, unsigned long) const':
StructuredBlockForest.cpp:(.text+0x410): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(BlockForest.cpp.o):BlockForest.cpp:(.text+0x72a0): more undefined references to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)' follow
/usr/bin/ld: /usr/local/lib/libblockforest.a(BlockForest.cpp.o): in function `walberla::blockforest::BlockForest::constructBlockInformation()':
BlockForest.cpp:(.text+0x1c62a): undefined reference to `walberla::mpi::allGathervBuffer(walberla::mpi::GenericSendBuffer<unsigned char, walberla::mpi::OptimalGrowth> const&, walberla::mpi::GenericRecvBuffer<unsigned char>&, ompi_communicator_t*)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(BlockForest.cpp.o): in function `void walberla::blockforest::BlockID::toBuffer<walberla::mpi::GenericSendBuffer<unsigned char, walberla::mpi::OptimalGrowth> >(walberla::mpi::GenericSendBuffer<unsigned char, walberla::mpi::OptimalGrowth>&) const':
BlockForest.cpp:(.text._ZNK8walberla11blockforest7BlockID8toBufferINS_3mpi17GenericSendBufferIhNS3_13OptimalGrowthEEEEEvRT_[_ZNK8walberla11blockforest7BlockID8toBufferINS_3mpi17GenericSendBufferIhNS3_13OptimalGrowthEEEEEvRT_]+0x1a): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(BlockForest.cpp.o): in function `std::vector<walberla::uid::UID<walberla::uid::suidgenerator::S>, std::allocator<walberla::uid::UID<walberla::uid::suidgenerator::S> > > walberla::mpi::allReduceSet<walberla::uid::UID<walberla::uid::suidgenerator::S> >(std::vector<walberla::uid::UID<walberla::uid::suidgenerator::S>, std::allocator<walberla::uid::UID<walberla::uid::suidgenerator::S> > >, walberla::mpi::SetOperation, ompi_communicator_t*, int)':
BlockForest.cpp:(.text._ZN8walberla3mpi12allReduceSetINS_3uid3UIDINS2_13suidgenerator1SEEEEESt6vectorIT_SaIS8_EESA_NS0_12SetOperationEP19ompi_communicator_ti[_ZN8walberla3mpi12allReduceSetINS_3uid3UIDINS2_13suidgenerator1SEEEEESt6vectorIT_SaIS8_EESA_NS0_12SetOperationEP19ompi_communicator_ti]+0x3b2): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(BlockReconstruction.cpp.o): in function `walberla::blockforest::BlockReconstruction::reconstructAABB(walberla::math::GenericAABB<double>&, walberla::blockforest::BlockID const&, walberla::math::GenericAABB<double> const&, unsigned long, unsigned long, unsigned long, unsigned long)':
BlockReconstruction.cpp:(.text+0x8d): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: BlockReconstruction.cpp:(.text+0x129): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: BlockReconstruction.cpp:(.text+0x4eb): undefined reference to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)'
/usr/bin/ld: /usr/local/lib/libblockforest.a(PhantomBlockForest.cpp.o):PhantomBlockForest.cpp:(.text+0x6586): more undefined references to `unsigned long walberla::math::uintMSBPosition<unsigned long>(unsigned long)' follow
/usr/bin/ld: /usr/local/lib/libdomain_decomposition.a(BlockStorage.cpp.o): in function `walberla::domain_decomposition::BlockStorage::loadBlockData(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, walberla::selectable::SetSelectableObject<std::shared_ptr<walberla::domain_decomposition::internal::BlockDataHandlingWrapper>, walberla::uid::UID<walberla::uid::suidgenerator::S> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)':
BlockStorage.cpp:(.text+0x31cf): undefined reference to `walberla::mpi::readMPIIO(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, walberla::mpi::GenericRecvBuffer<unsigned char>&)'
/usr/bin/ld: /usr/local/lib/libdomain_decomposition.a(BlockStorage.cpp.o): in function `walberla::domain_decomposition::BlockStorage::saveBlockData(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, walberla::domain_decomposition::BlockDataID const&)':
BlockStorage.cpp:(.text+0x5f8d): undefined reference to `walberla::mpi::writeMPIIO(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, walberla::mpi::GenericSendBuffer<unsigned char, walberla::mpi::OptimalGrowth>&)'
/usr/bin/ld: /usr/local/lib/libdomain_decomposition.a(IBlock.cpp.o): in function `walberla::domain_decomposition::IBlock::operator==(walberla::domain_decomposition::IBlock const&) const':
IBlock.cpp:(.text+0x1d7): undefined reference to `walberla::real_comparison::Epsilon<double>::value'
/usr/bin/ld: /usr/local/lib/libdomain_decomposition.a(StructuredBlockStorage.cpp.o): in function `walberla::domain_decomposition::StructuredBlockStorage::isCellAlignedAABB(walberla::math::GenericAABB<double> const&, unsigned long) const':
StructuredBlockStorage.cpp:(.text+0x721): undefined reference to `walberla::real_comparison::Epsilon<double>::value'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/sugar_dissolving.dir/build.make:126: sugar_dissolving] Error 1
make[1]: *** [CMakeFiles/Makefile2:2335: CMakeFiles/sugar_dissolving.dir/all] Error 2
make: *** [Makefile:136: all] Error 2

在构建waLBerla时，它还编译了这些教程，所以我知道我有所有必要的包和库，但是我如何才能将其编译到不同的目录中，最好是以现代的Cmake方式。

为了完整起见，下面是tree的输出

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.
├── build
│   ├── CMakeCache.txt
│   ├── CMakeFiles
│   │   ├── 3.20.0
│   │   │   ├── CMakeCCompiler.cmake
│   │   │   ├── CMakeCXXCompiler.cmake
│   │   │   ├── CMakeDetermineCompilerABI_C.bin
│   │   │   ├── CMakeDetermineCompilerABI_CXX.bin
│   │   │   ├── CMakeSystem.cmake
│   │   │   ├── CompilerIdC
│   │   │   │   ├── a.out
│   │   │   │   ├── CMakeCCompilerId.c
│   │   │   │   └── tmp
│   │   │   └── CompilerIdCXX
│   │   │       ├── a.out
│   │   │       ├── CMakeCXXCompilerId.cpp
│   │   │       └── tmp
│   │   ├── cmake.check_cache
│   │   ├── CMakeDirectoryInformation.cmake
│   │   ├── CMakeError.log
│   │   ├── CMakeOutput.log
│   │   ├── CMakeRuleHashes.txt
│   │   ├── CMakeTmp
│   │   ├── FindMPI
│   │   │   ├── test_mpi_C.bin
│   │   │   ├── test_mpi.cpp
│   │   │   └── test_mpi_CXX.bin
│   │   ├── FindOpenMP
│   │   │   ├── ompver_C.bin
│   │   │   ├── ompver_CXX.bin
│   │   │   ├── OpenMPCheckVersion.c
│   │   │   ├── OpenMPCheckVersion.cpp
│   │   │   ├── OpenMPTryFlag.c
│   │   │   └── OpenMPTryFlag.cpp
│   │   ├── Makefile2
│   │   ├── Makefile.cmake
│   │   ├── Progress
│   │   │   └── count.txt
│   │   ├── progress.marks
│   │   ├── sugar_dissolving.dir
│   │   │   ├── build.make
│   │   │   ├── cmake_clean.cmake
│   │   │   ├── compiler_depend.internal
│   │   │   ├── compiler_depend.make
│   │   │   ├── compiler_depend.ts
│   │   │   ├── DependInfo.cmake
│   │   │   ├── depend.make
│   │   │   ├── flags.make
│   │   │   ├── link.txt
│   │   │   ├── main.cpp.o
│   │   │   ├── main.cpp.o.d
│   │   │   └── progress.make
│   │   └── TargetDirectories.txt
│   ├── cmake_install.cmake
│   ├── compile_commands.json
│   └── Makefile
├── CMakeLists.txt
└── main.cpp

非常感谢！

c++
cmake
EN

回答 1

Stack Overflow用户

回答已采纳

发布于 2021-08-27 10:43:58

示例项目结构可以在here中找到。

出于完整性考虑，文件结构如下所示：

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example_app/
├── apps
│   ├── CMakeLists.txt (1)
│   └── example_app
│       ├── CMakeLists.txt (2)
│       └── ExampleApp.cpp
├── CMakeLists.txt (3)
├── FindwaLBerla.cmake (4)
├── README
├── src
│   └── CMakeLists.txt (5)
└── tests
    └── CMakeLists.txt (6)

从上到下，CMakeLists.txt的内容是

(1)：

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add_subdirectory( example_app )

(2)：

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waLBerla_link_files_to_builddir( *.prm  *.py)

waLBerla_add_executable ( NAME ExampleApp
                          FILES ExampleApp.cpp
                          DEPENDS blockforest core field lbm geometry timeloop gui mesh)

(3)

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CMAKE_MINIMUM_REQUIRED (VERSION 3.0) 
PROJECT ( your_project_name ) 

enable_testing()
include_directories( src )
include_directories ( ${your_project_name_BINARY_DIR}/src )

# Extends cmake module path - so that FindwaLBerla.cmake in the current directory is found
set ( CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${your_project_name_SOURCE_DIR} )
find_package( waLBerla )

add_subdirectory( src  )
add_subdirectory( apps )
add_subdirectory( tests )

(4)：

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set( WALBERLA_DIR    WALBERLA_DIR-NOTFOUND   CACHE  PATH  "waLBerla path"  )

if ( WALBERLA_DIR )
    # WALBERLA_DIR has to point to the waLBerla source directory
    # this command builds waLBerla (again) in the current build directory in the subfolder "walberla" (second argument)
    add_subdirectory( ${WALBERLA_DIR} walberla  )
    
    waLBerla_import()
    # Adds the 'src' and 'tests' directory of current app
    list( APPEND WALBERLA_MODULE_DIRS "${CMAKE_SOURCE_DIR}/src" "${CMAKE_SOURCE_DIR}/tests" )
    list( REMOVE_DUPLICATES  WALBERLA_MODULE_DIRS )
    set ( WALBERLA_MODULE_DIRS  ${WALBERLA_MODULE_DIRS} CACHE INTERNAL "All folders that contain modules or tests" )
else()
    message( FATAL_ERROR "waLBerla not found - Use 'cmake -DWALBERLA_DIR=path_to_waLBerla_sources  pathToApplicationSources' "  )
endif()

(5) + (6)：

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#add_subdirectory( name_of_your_module_subfolder )
票数 1
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/68756085

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