For managed spot runs, you can specify the resources requirement of the controller in ~/.sky/config.yaml file. You can set the number of CPUs required for the controller by adding the following configuration:

  controller:
    resources:
      cpus: 4```

To make the configuration take effect, you need to stop the current controller using `sky down sky-spot-controller-<hash>` and then launch it again using `sky spot launch` command. The controller name can be found in the output of `sky status` command.

Additionally, for multiple managed spot jobs, they will reuse the same controller node, so the cost for it is amortized.