Centralized end-to-end flow control in a best-effort network-on-chip

An Open-Loop Flow Control Scheme Based on the Accurate Global Information of On-Chip Communication

“…In terms of exploiting the global information of communication, a concept of control NoC is presented in [16]. It transfers the information of communication statistics (e.g., # blockings) from destinations to sources.…”

“…It transfers the information of communication statistics (e.g., # blockings) from destinations to sources. There are two main differences between [16] and ours: the source of global information and flow control scheme (open or closed-loop). [16] gathers an indirect information (e.g.…”

“…There are two main differences between [16] and ours: the source of global information and flow control scheme (open or closed-loop). [16] gathers an indirect information (e.g. congestion status) at destinations and exploits it in controlling packet injection rate at sources while ours gathers a more direct and detailed information (e.g.…”

Access Regulation to Hot-Modules in Wormhole NoCs

“…Ref. [18] addresses the classic flow control problem, regulating the communication between a source-destination pair. The authors combine software and hardware mechanisms to adjust the length of a period ("send window") in which the source is allowed to inject packets towards a destination.…”

“…Flow control is conducted on a per source-destination pair basis (e.g. TCP, send window in [18], static window in [21]), and prevents overflow in the destination buffers pre-allocated for this source (e.g. [22], [23]).…”