do hashcat-utils use the gpu's?

Hi there - I've been tinkering with hashcat for a few weeks now.  I'm interested in using the combinator3 function within the hashcat-utils package.  I was able to get it to work, but it is incredibly slow.  Something tells me it is not using the GPUs.

I decided to pivot back to the normal hashcat tool and performed the combinator attack using just 2 out of the 3 files.  This works, but I would also like to receive an output of the password candidates and that isn't going very well.

so, 2 questions:
1. Is there a way to ensure the combinator3 is using the gpus i have on-board...?

2. how do i get hashcat to output the pw candidates to a text file?  

Thanks!