本文選題：片上網(wǎng)絡(luò) + 頭阻塞�。� 參考：《電子測量與儀器學(xué)報(bào)》2017年01期

【摘要】：針對片上網(wǎng)絡(luò)中使用虛擬輸出隊(duì)列(VOQ)機(jī)制的路由器在網(wǎng)絡(luò)擁塞時(shí)存在的頭阻塞問題,提出負(fù)載均衡的AVOQ路由器架構(gòu)。首先,輸入緩沖區(qū)仍使用VOQ機(jī)制來處理頭阻塞問題。其次,在路由計(jì)算模塊自適應(yīng)地選擇輸出端口,確保數(shù)據(jù)從較不擁塞的端口輸出;在單個(gè)虛通道內(nèi)自適應(yīng)地讀取數(shù)據(jù)包,確保下游不擁塞的流量能夠在網(wǎng)絡(luò)里流通。實(shí)驗(yàn)結(jié)果表明,相較于虛通道路由器和VOQ路由器,AVOQ路由器平均延時(shí)最多減少83.2%和57.1%,吞吐率最多增加72.7%和33.3%,功耗和面積開銷可接受。該方案通過兩個(gè)層級的自適應(yīng)均衡全網(wǎng)的流量分布,緩解擁塞,進(jìn)而降低頭阻塞出現(xiàn)的可能性,并在頭阻塞出現(xiàn)時(shí)消除其影響,提升網(wǎng)絡(luò)性能。
[Abstract]:A load-balanced AVOQ router architecture is proposed to solve the head-blocking problem in network congestion of routers using virtual output queue (VOQ) mechanism in on-chip networks. First, the input buffer still uses the VOQ mechanism to deal with header blocking. Secondly, the routing computing module adaptively selects the output port to ensure the data output from the less congested port, and adaptively reads the data packets in a single virtual channel to ensure the flow of non-congested downstream traffic in the network. The experimental results show that compared with virtual channel routers and VOQ routers, the average latency of AVOQ routers decreases by 83.2% and 57.1%, the throughput increases by 72.7% and 33.3%, and the power consumption and area overhead are acceptable. This scheme adaptively equalizes the traffic distribution of the whole network with two levels to alleviate the congestion and reduce the probability of the header blocking and eliminate its influence when the header blocking occurs and improve the network performance.
【作者單位】： 合肥工業(yè)大學(xué)計(jì)算機(jī)與信息學(xué)院;合肥工業(yè)大學(xué)電子科學(xué)與應(yīng)用物理學(xué)院;
【基金】：國家自然科學(xué)基金(61474036,61274036,61371025,61574052) 安徽省自然科學(xué)基金(1508085MF117)資助項(xiàng)目
【分類號】：TN915.05;TN47
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本文編號：2040135