Patent ID: 8909051
Filing Date: 2014-12-09
Classification: H04J

Abstract:
1. A multi-chip module (MCM), comprising: optical waveguides configured to convey optical signals; and integrated circuits optically coupled to the optical waveguides, wherein the optical waveguides provide dedicated point-to-point optical links between all pairs of the integrated circuits; wherein, for a given point-to-point optical link between a given pair of integrated circuits, other integrated circuits in the integrated circuits are configured to steal access on the given point-to-point optical link without arbitration when communicating information to one of the given pair of integrated circuits so that the given point-to-point optical link is shared by more than the given pair of integrated circuits; wherein the integrated circuits are configured to recover errors in messages in the optical signals corrupted by collisions on the given point-to-point optical link using erasure coding; wherein the optical signals include data carrier wavelengths that convey data messages and control carrier wavelengths that convey coordination messages for communication among the integrated circuits; and wherein the control carrier wavelengths convey information specifying locations of erasures in the messages associated with the collisions, information specifying the other integrated circuits that sent the messages, and instructions to the other integrated circuits to stop stealing access when collisions occur.