Farm Irrigation Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6590 Accepted Submission(s): 2838 Problem Description Benny has a spacious farm land to irrigate. The farm land is a rectangle
熟悉传统网络协议栈但对InfiniBand协议栈好奇的朋友可以通过下图有一个宏观上的印象. IB实现了"高带宽,低延时"的网络互联,最大的魅力就是支持RDMA,而RDMA就其本质,不过就是kernel by pass. "CPU大大实在是太忙啦,咋整? 用专用的硬件来帮忙!" 当初的DMA就是基于这一思路设计出来的,RDMA不过是从单机扩展到了双机上而已.(关于DMA与RDMA技术,这里暂不做介绍.) o 截图来源: http://www.ics.uci.edu/~