Metal API changes for M1 Ultra?

Hello,

is there something to do for developers for the M1 Ultra chip to use all GPU cores?

When you output the power used, you may see that with heavy load, the GPU may not use full 120 W of power and it looks like some GPU cores may be idle.

Is some entitlement needed, something for configuration? Or how can you get maximum performance there?

Greetings Christian