Data Paper Slide Intro NoRD: Node-Router Decoupling (canh ly). Reason of PG problem: the dependence between the node and route - any packet (sent, received or forwarded) must wake up the router before being transferred, thus breaking the potentially long idle period into fragmented intervals. The simulation shows that directly applying conventional power-gating techniques would cause frequent state-transitions and significant energy and performance overhead. In this paper,we propose NoRD (Node-Router Decoupling), a novel power-aware on-chip network approach that provides for power-gating bypass to decouple the node’s ability for transferring packets from the powered-on/off status of the associated router, thereby maximizing the length of router idle periods. Fundamentable problem of PG: intermittent packet arrivals may cause a large number of idle periods to fall below the breakeven time needed to compensate for power-gating overhead, reducing the opportunity to apply power-gating techniques usefully. packets encountering gated-off routers suffer additional transport latency to wait for routers to wake up and are likely to experience successive wakeup latencies on the critical path if routed over multiple hops. a gated-off router essentially disconnects the associated node from the rest of the network, the power-gating opportunity is upper bounded by the local node’s traffic and none of the local resources (e.g., cache and directory) can be accessed by other nodes, unless connectivity is somehow supported another way (TODO: read). Main contributation: NoRD (Node-Router Decoupling) - a novel approach that provides separate power-gating bypass to decouple the node’s ability for transferring packets from the status of the router. Voc bypass: a secondary channel, pipe, or connection to allow a flow when the main one is closed or blocked. WU: wake-up VC: virtual channel confine: gioi han mitigate: diu nhe sufficiently: du, thich dang compensate: den bu potential: tiem luc – associate: lien ket critical: quan trong, gioi han cumulative: tich luy decouple: tach roi bypass: bo qua ability: nang luc proof: su chung minh draw: loi keo impact: tac dong iscas: the conference Please enable JavaScript to view the comments powered by Disqus.