System and method for efficient multi-gpu rendering of geometry by pretesting against interleaved screen regions before rendering

A computer system comprising:

• a processor;
• memory coupled to the processor and having stored therein instructions that, if executed by the computer system, cause the computer system to execute a method for implementing a graphics pipeline, comprising:
• rendering graphics for an application using a plurality of graphics processing units (GPUs);
• dividing responsibility for the rendering of geometry of the graphics between the plurality of GPUs based on a plurality of screen regions, each GPU having a corresponding division of the responsibility which is known to the plurality of GPUs, wherein screen regions in the plurality of screen regions are interleaved;
• assigning a GPU a piece of geometry of an image frame generated by an application for geometry pretesting;
• performing the geometry pretesting at the GPU to generate information regarding the piece of geometry and its relation to each of the plurality of screen regions;
• and
• using the information at each of the plurality of GPUs when rendering the image frame.