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An implementation of the Hamlyn sender-managed interface architecture

机译:Hamlyn发送方管理的接口体系结构的实现

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As the latency and bandwidth of multicomputer interconnection fabrics improve, there is a growing need for an interface between them and host processors that does not hide these gains behind software overhead. The Hamlyn interface architecture does this. It uses sender-based memory management to eliminate receiver buffer overruns, provides applications with direct hardware access to minimize latency, supports adaptive routing networks to allow higher throughput, and offers full protection between applications so that it can be used in a general-purpose computing environment. To test these claims we built a prototype Hamlyn interface for a Myrinet network connected to a standard HP workstation and report here on its design and performance. Our interface delivers an application-to-application round trip time of 28μs for short messages and a one way time of 17.4μs + 32.6ns/byte (30.7MB/s) for longer ones, while requiring fewer CPU cycles than an aggressive implementation of Active Messages on the CM-5.
机译:随着多计算机互连结构的等待时间和带宽的提高,对它们与主机处理器之间的接口的需求不断增长,这种接口不会将这些收益隐藏在软件开销之后。 Hamlyn接口体系结构可以做到这一点。它使用基于发送方的内存管理来消除接收方缓冲区超限,为应用程序提供直接的硬件访问以最大程度地减少延迟,支持自适应路由网络以实现更高的吞吐量,并在应用程序之间提供全面保护,因此可以在通用计算中使用环境。为了测试这些说法,我们为连接到标准HP工作站的Myrinet网络构建了原型Hamlyn接口,并在此报告其设计和性能。我们的界面为短消息提供了28μs的应用程序到应用程序往返时间,而对于较长的消息,则提供了17.4μs+ 32.6ns / byte(30.7MB / s)的单向时间,而与积极地实施以下操作相比,所需的CPU周期更少CM-5上的活动消息。

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