thrust library linking errors msvcprt.lib(MSVCP90.dll) : error LNK2005

Accelerated Computing CUDA CUDA Programming and Performance
1

I am using the thrust library in CUDA 4.0. Basically I want to use it to replace CUDPP. When I tried to add

int h_sum = thrust::reduce(dev_ptr_out, dev_ptr_out + array_size, 0, thrust::plus<float>());

to my current project, it has no problem in compiling, but it has linking errors as below:

1>msvcprt.lib(MSVCP90.dll) : error LNK2005: "public: char const * __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::c_str(void)const " (?c_str@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEPBDXZ) already defined in main.cu.obj

1>msvcprt.lib(MSVCP90.dll) : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > & __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::operator=(char const *)" (??4?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAEAAV01@PBD@Z) already defined in main.cu.obj

1>msvcprt.lib(MSVCP90.dll) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::~basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(void)" (??1?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@XZ) already defined in main.cu.obj

1>msvcprt.lib(MSVCP90.dll) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(void)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@XZ) already defined in main.cu.obj

1>msvcprt.lib(MSVCP90.dll) : error LNK2005: "public: static unsigned int __cdecl std::char_traits<char>::length(char const *)" (?length@?$char_traits@D@std@@SAIPBD@Z) already defined in main.cu.obj

How to handle this linking problem? Thank you,

2

I am getting the same link errors since I try to compile with cuda 4.0

I don’t know if it is especially related to thrust, but I am also using thrust.

Note that the runtime libraries are correctly given in both cpp and cuda compilation.

Please help, I have already lost too much time on it and nothing is working anymore…

– pium

edit: I confirm that the error is linked to thrust (by commenting every stuff relative to thrust it compiles/links/works)
edit2: just including a header file from thrust (without using any function) creates the error

3

In the SDK, the marching cube example is using thrust and is compiling.

By default, this project is using static runtime libraries /MT
A soon as I compiles with dynamic runtime libraries /MD, I obtain a bunch of warnings C4251 relatives to std::basic_string and the same linking errors…
(since I am using compiled libraries that link dynamically I have no choice on this option)

I am stopping to post msg here, but I am going on the thrust bugtracker… :(

4

Let me answer the question myself in case it is useful.

  1. change the CPP option from /MD to /MT
  2. previously I chose to ignore libcmt.lib; now I should not ignore it any more: just remove it from the ignore list.
5

Well, you can avoid the error that way, but it does not really fix the issue in a long term. After all, maybe someone wants to build using multithreaded DLLs… ;-)

6

What is your solution if we have to use /MD?

7

Despair. There is another thread bumping around (found here) regarding that topic. It appears to be a problem in the NVCC compiler, but so far nobody has found a solution… For the time being, /MT seems to be the only viable option. Of course, maybe we all just overlooked something obvious…

8

the new cudafe++ seems to be buggy; the one from SDK 3.2 can also be used for 4.0. Just copy to the appropriate directory.

9

I can repro this with the Marching cubes example and 4.0 RC2



Add the following below to marchingCubes.cpp at line 71 (the #ifdef _WIN32 section):



#include <iostream>



And the following at line 356 (in main):



std::cout << "test" << std::endl;



Rebuild and see the following:



1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: char __thiscall std::basic_ios<char,struct std::char_traits<char> >::fill(void)const " (?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEDXZ) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: __int64 __thiscall std::basic_streambuf<char,struct std::char_traits<char> >::sputn(char const ,__int64)" (?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAE_JPBD_J@Z) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: void __thiscall std::basic_ostream<char,struct std::char_traits<char> >::_Osfx(void)" (?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEXXZ) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > * __thiscall std::basic_ios<char,struct std::char_traits<char> >::tie(void)const " (?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEPAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: int __thiscall std::basic_streambuf<char,struct std::char_traits<char> >::sputc(char)" (?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QAEHD@Z) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __thiscall std::basic_ostream<char,struct std::char_traits<char> >::flush(void)" (?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV12@XZ) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __thiscall std::basic_ostream<char,struct std::char_traits<char> >::operator<<(class std::basic_ostream<char,struct std::char_traits<char> > & (__cdecl)(class std::basic_ostream<char,struct std::char_traits<char> > &))" (??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QAEAAV01@P6AAAV01@AAV01@@Z@Z) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: class std::basic_streambuf<char,struct std::char_traits<char> > * __thiscall std::basic_ios<char,struct std::char_traits<char> >::rdbuf(void)const " (?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QBEPAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ) already defined in marchingCubes_kernel.cu.obj

1>msvcprt.lib(MSVCP100.dll) : error LNK2005: "public: void __thiscall std::basic_ios<char,struct std::char_traits<char> >::setstate(int,bool)" (?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QAEXH_N@Z) already defined in marchingCubes_kernel.cu.obj

1>../../bin/win32/Release//marchingCubes.exe : fatal error LNK1169: one or more multiply defined symbols found

10

Hi,

I had similar issues with another code. Found out that defining _STATIC_CPPLIB in preprocessor symbols helps. I wonder if it helps here …

cheers!