Large scale network-on-chip (NOC) congestion aware routing

Abstract

A method for traffic control in a network on chip that includes a group of routers and a group of processing engines (PEs). The method includes (i) obtaining, by a source PE that is coupled to a sub-group of routers via a sub-group of channels, backpressure information related to sub-group of channels; (ii) selecting, by the source PE, a selected channel of the sub-group of channels for conveying a packet destined to reach a destination PE; wherein the selecting is based, at least in part, on the backpressure information; wherein the source PE and the destination PE belong to the group of PEs; wherein the sub-group of routers belong to the group of routers; and (iii) outputting the packet to the selected channel.

CPC Classifications