Hello,
Is it possible to assign specific nodes on an hqueue farm to specific tasks from a PDG tree? I want to be able to simulate on one machine and as resulting frames are simulated have another machine start rendering.

Yes, you do that with the “Select Clients” job parm on the Node.

https://www.sidefx.com/docs/houdini/tops/schedulers.html#override [www.sidefx.com]