Cuda error: function has already been defined in another .cu.obj file

Question

I am trying to compile a cuda project that someone sent me. Though the compile stage passes, the link stage is failing. Below is an example of the error:

Err         


        

Answer 1

Looks like your decode_p4.cu 3level_1.cu include these function more than ones, focus on the file defining these function.

Make sure to put the declarations in .cuh file (same as head file in c) and include the cuh instead of cu files, then check out the include guards.

Good Luck, Bro!