For posterity here are the amdgpu (amd proprietary) packages I had to install. I'm still running the open source drivers for video.

# rpm -qa | grep amdgpu
libdrm-amdgpu-2.4.99-967956.el8.x86_64
libdrm-amdgpu-common-1.0.0-967956.el8.noarch
clinfo-amdgpu-pro-19.50-967956.el8.x86_64
opencl-amdgpu-pro-comgr-19.50-967956.el8.x86_64
amdgpu-pro-core-19.50-967956.el8.noarch
opencl-orca-amdgpu-pro-icd-19.50-967956.el8.x86_64
libopencl-amdgpu-pro-19.50-967956.el8.x86_64

There were two more things I had to do to get it working.

1. It seems most programs aren't smart enough to go through all the vendors in /etc/OpenCL/vendors and find the working one, they try the first and give up.

2. Once you have FAH running and it doesn't find a GPU the first time it stops looking and you can't add it manually. You have to edit /etc/fahclient/config.xml and remove the "GPU=False" line and restart FAHClient.

Thanks,

Richard