Adaptive allocation of default router paths in Network-on-Chips for latency reduction
Adaptive allocation of default router paths in Network-on-Chips for latency reduction
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DOI：
10.1109/hpcsim.2016.7568328
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发表时间：
2016-07
期刊：
影响因子：
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通讯作者：
J. Joseph;Christopher Blochwitz;Thilo Pionteck
中科院分区：
文献类型：
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作者：
J. Joseph;Christopher Blochwitz;Thilo Pionteck
我们提出了一种新的优先级技术，以减少在片上网络的延迟。对于单个路由器，我们自适应地分配默认路径，假设后续的包是数据流的一部分，因此，路由决策是相同的。由于执行到输出端口的主动路由，因此部分地绕过了传统的路由器流水线。该方法是确定性的，非投机性的本地和自主决策，保留了标准的网络负载，并不惩罚非优先级的链接。出现了虚拟点对点连接，它跨越多跳并加速交错流。在PARSEC基准测试的模拟中，我们实现了4.8%至12.2%的平均包延迟降低。
We present a novel prioritization technique to reduce latencies in Network-on-chips. For individual routers, we adaptively allocate default paths assuming that subsequent packages are part of a data stream and, thus, routing decisions are identical. Since proactive routing to an output port is performed, the conventional router pipeline is partly bypassed. The method is deterministic, non-speculative with local and autonomous decisions, retains the standard network load, and does not penalize non-prioritized links. Virtual point-to-point connections emerge, which span multiple hops and accelerate interleaved streams. We achieve an average package latency reduction of 4.8% to 12.2% in simulations for PARSEC benchmarks.