Partial GPU usage

Hi,

Being an old CO flyer, I have never been a 1K. I have never used GPUs. Now I want to use one of a friend, but despite spending a few hours searching the web (including FT), I could not find how UA handles this.

I have a HAM-EWR-TPA.

HAM-EWR has no R available right now and only 2 F.

EWR-TPA has.

If I use the GPU now and the first segment does not clear, will the GPU still count as used because of the second segment?

Thanks

Stephan