Since the miner also detects nvidia cards as opencl capable you get something like this:

Starting GPU Mining thread 4, on GPU 0
Created OpenCL Context for GPU 0 at 000001805feb70e0
Created OpenCL Thread 4 Command-Queue for GPU 0 at 000001806e913db0
Allocating big 3456MB scratchpad for OpenCL Thread 4...
Scratchpad Allocation success for OpenCL Thread 4
Compiling kernels of OpenCL Thread 4, it will be long...
Compilation of OpenCL kernels failed.
Error: CL_BUILD_PROGRAM_FAILURE Code: s-452.29


is there a way so that it only auto configs AMD cards? Also it only starts 4 threads for my Ryzen 2700X