Tile compounds are similar to 2D compounds. They decompose the rendering in screen-space, where each rendering unit pulls and processes regular tiles of the final view. Tile compounds are ideal for purely fill-limited applications such as volume rendering and raytracing.
This mode has a low, constant IO overhead for the image transfers and can provide good scalability when used with fill-limited applications. Tile decomposition works transparently for all Equalizer-based applications. The rendering is naturally load-balanced since all contributing units pull their tiles from one central queue until the frame is finished.
3D model courtesy of Cyberware.