cuda : error LNK2001 with visual studio 2017

Accelerated Computing CUDA CUDA Programming and Performance
#1

Hello everyone,

For a projet, I use cuda. I add in Myproject --> properties --> C\C++ --> General --> add library: the address of the file which contain my files .lib : NVIDIA GPU Computing Toolkit\CUDA\v9.1\lib\x64.
And in Myproject --> properties --> linker --> input --> additional dependencies, I add every the files .lib which there is in NVIDIA GPU Computing Toolkit\CUDA\v9.1\lib\x64 to be sure.

The probleme and when I compile, I have the error message :
LNK1120 69 unresolved externals
LNK2001 unresolved external symbol "class CSF_cuda *__cdecl ObjectToDevice(class CSF_cuda *)
LNK2001 …

Do you know why I have this message because I do add the library.

thank you for your help

#2

Have you considered the possibility that the missing symbols are in code that is not part of CUDA? The one symbol you have shown seems to be from this third-party project:

https://github.com/MarianoJT88/PD-Flow/blob/master/pdflow_cudalib.h

In your build you would have to add that third party code in either object file or library form (not sure which one is appropriate, I haven’t looked at the project).

#3

thank you njuffa for your answer

yes ! this is my problem. I am working on this project. I don’t understand because pdflow_cudalib.h is just an header so I just have to add #include pdflow_cudalib.h in my cpp.

You propose to add pdflow_cudalib.h like an object file, but what does it mean ? How can I do this ?

#4

I don’t use IDEs, don’t know your code, and haven’t dug through PDFLOW library source code. I am sure you can figure it out, by spending some quality time with your code base and the MSVS documentation.

#5

it isn’t related to CUDA, so you better ask it on StackOverflow