1. A computer system, comprising: a first cluster including a first plurality of processors and a first interconnection controller, the first plurality of processors and the first interconnection controller in communication using a point-to-point architecture; a second cluster including a second plurality of processors and a second interconnection controller, the second plurality of processors and the second interconnection controller in communication using a point-to-point architecture, wherein polling for a link from the first interconnection controller to the second interconnection controller can be enabled or disabled by configuring the first interconnection controller.