编译一个混合GNU Fortran/ c++ MPI共享库

compiling a mixed GNU Fortran/C++ MPI shared library

本文关键字:Fortran c++ MPI 共享 GNU 混合 一个 编译      更新时间:2023-10-16

我正试图将c++ MPI包装器编译为MPI Fortran库,但链接失败。使用

编译包装器。
mpic++ -c my_wrapper.cc -o my_wrapper.o 

my_wrapper。cc写道:

#include "mpi.h"
extern"C" {
  void fortran_func_(int * comm,bool *do_init);
}
void c_func(MPI_Comm my_comm ) 
{
   MPI_Fint    fcomm;
   fcomm = MPI_Comm_c2f(my_comm);
   bool do_init = false;
   fortran_func_(&fcomm, &do_init);
}

使用

编译库
  MPI_LINK_FLAGS = $(shell mpic++ --showme:link)
  mpif90 -shared my_wrapper.o $(FORTRAN-LIBS) $(MPI_LINK_FLAGS) -o my_libc++.a

链接错误如下:

  "std::ios_base::Init::Init()", referenced from:
      __static_initialization_and_destruction_0(int, int) in my_wrapper.o
  "std::ios_base::Init::~Init()", referenced from:
      __static_initialization_and_destruction_0(int, int) in my_wrapper.o
  "vtable for __cxxabiv1::__class_type_info", referenced from:
      typeinfo for MPI::Info in my_wrapper.o
      typeinfo for MPI::Errhandler in my_wrapper.o
      typeinfo for MPI::Win in my_wrapper.o
      typeinfo for MPI::Comm_Null in my_wrapper.o
      typeinfo for MPI::Group in my_wrapper.o
      typeinfo for MPI::Request in my_wrapper.o
      typeinfo for MPI::Status in my_wrapper.o
      ...
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for __cxxabiv1::__si_class_type_info", referenced from:
      typeinfo for MPI::Intercomm in my_wrapper.o
      typeinfo for MPI::Graphcomm in my_wrapper.o
      typeinfo for MPI::Cartcomm in my_wrapper.o
      typeinfo for MPI::Intracomm in my_wrapper.o
      typeinfo for MPI::Comm in my_wrapper.o
      typeinfo for MPI::Grequest in my_wrapper.o
      typeinfo for MPI::Prequest in my_wrapper.o
      ...
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "operator delete[](void*)", referenced from:
      MPI::Datatype::Get_contents(int, int, int, int*, long*, MPI::Datatype*) const in my_wrapper.o
      MPI::Comm::Alltoallw(void const*, int const*, int const*, MPI::Datatype const*, void*, int const*, int const*, MPI::Datatype const*) const in my_wrapper.o
      MPI::Intracomm::Create_cart(int, int const*, bool const*, bool) const in my_wrapper.o
      MPI::Intracomm::Spawn_multiple(int, char const**, char const***, int const*, MPI::Info const*, int) in my_wrapper.o
      MPI::Intracomm::Spawn_multiple(int, char const**, char const***, int const*, MPI::Info const*, int, int*) in my_wrapper.o
      MPI::Cartcomm::Get_topo(int, int*, bool*, int*) const in my_wrapper.o
      MPI::Cartcomm::Sub(bool const*) const in my_wrapper.o
      ...
  "operator delete(void*)", referenced from:
      MPI::Datatype::~Datatype() in my_wrapper.o
      MPI::Datatype::~Datatype() in my_wrapper.o
      MPI::Status::~Status() in my_wrapper.o
      MPI::Status::~Status() in my_wrapper.o
      MPI::Request::~Request() in my_wrapper.o
      MPI::Request::~Request() in my_wrapper.o
      MPI::Request::~Request() in my_wrapper.o
      ...
  "operator new[](unsigned long)", referenced from:
      MPI::Datatype::Get_contents(int, int, int, int*, long*, MPI::Datatype*) const in my_wrapper.o
      MPI::Comm::Alltoallw(void const*, int const*, int const*, MPI::Datatype const*, void*, int const*, int const*, MPI::Datatype const*) const in my_wrapper.o
      MPI::Intracomm::Create_cart(int, int const*, bool const*, bool) const in my_wrapper.o
      MPI::Intracomm::convert_info_to_mpi_info(int, MPI::Info const*) in my_wrapper.o
      MPI::Cartcomm::Get_topo(int, int*, bool*, int*) const in my_wrapper.o
      MPI::Cartcomm::Sub(bool const*) const in my_wrapper.o
      MPI::Cartcomm::Map(int, int const*, bool const*) const in my_wrapper.o
      ...
  "operator new(unsigned long)", referenced from:
      MPI::Intracomm::Clone() const in my_wrapper.o
      MPI::Cartcomm::Clone() const in my_wrapper.o
      MPI::Graphcomm::Clone() const in my_wrapper.o
      MPI::Intercomm::Clone() const in my_wrapper.o
  "___cxa_pure_virtual", referenced from:
      vtable for MPI::Comm in my_wrapper.o
  "___gxx_personality_v0", referenced from:
      Dwarf Exception Unwind Info (__eh_frame) in my_wrapper.o
  ld: symbol(s) not found for architecture x86_64
  collect2: error: ld returned 1 exit status

我找不到任何例子如何做这些事情(混合Fortran/c++与MPI),所以我在这里问,希望它将在某些时候对其他人有用。

注:

如果我尝试用mpic++编译它:

MPIF_LINK_FLAGS = $(shell mpif90 --showme:link)
mpic++ -shared my_wrapper.o $(FORTRAN-LIBS) $(MPIF_LINK_FLAGS) -o $@

我错过了很多符号从$(FORTRAN-LIBS),我没有当我链接到mpif90。所以我想我最好把那些缺失的库添加到Fortran链接器中。

我用Open MPI: 1.6如果它重要。

EDIT1: 通过将这些添加到mpif90链接所有编译:

-L/opt/local/lib/gcc47/ -lstdc++

确实,缺少了一些标准的c++内容

您似乎正在使用FORTRAN链接器进行链接。它对c++标准库一无所知,所以所有的c++标准库(std::ios_base的这些部分)都是"未定义的符号"。您需要修改您的link命令,以添加c++标准库。

由于复合语言既不完全是FORTRAN的,也不完全是c++的,所以FORTRAN和c++的链接器都不完全合适。您可能需要考虑直接使用ld。在这种情况下,您必须列出c++标准库和FORTRAN标准库作为链接库。