ATOMIC: A High-Speed, Low-Cost, Local Communication Architecture

The 8th IEEE Workshop on Computer Communications Pub Date : 1993-10-17 DOI:10.1109/CMPCMM.1993.659091

D. Cohen

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Abstract

The ATOMIC network is a LAN application of the intra-computer communication technology that is used inside the Mosaic multicomputers. The Mosaic multicomputer is a latter-day version of the “Cosmic Cube” that Chuck Seitz and his research group in the Computer Science Department at Caltech has developed in the early 80’s. At that time, Seitz anticipated that within 10 years a complete node with its processor, memory, and communication would be reduced to a single chip. The Mosaic computer is based on repetitive use of the Mosaic-C chip, which is that single chip that he anticipated. Each of these chips has 4 bi-directional channels, and a 2-dimensional router that allows packets of arbitrary length to flow from any chip to any other chip within-a 128x128 array. These channels are asynchronous and operate between 500 and 800 Mb/s in each direction. ATOMIC is a LAN based on the Mosaic technology with several modifications as required for a LAN. The philosophy of ATOMIC is that a high performance LAN, with high bandwidth and low latency, is a large “back-plane” (i.e., large intra-computer communication) rather than a small WAN, such as ATM. However, the extension of the Mosaic communication to a LAN has to address a few new problems, such as:

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原子:一种高速、低成本、本地通信体系结构

原子网络是在Mosaic多计算机内部使用的计算机内通信技术的局域网应用。马赛克多计算机是“宇宙立方体”的现代版本，是查克·塞茨和他在加州理工学院计算机科学系的研究小组在80年代初开发的。当时，塞茨预计，在10年内，一个完整的节点，包括处理器、内存和通信将被缩小到一个芯片上。Mosaic电脑是基于对Mosaic- c芯片的重复使用，也就是他所期望的那个芯片。每个芯片都有4个双向通道和一个二维路由器，允许任意长度的数据包在128x128阵列内从任何芯片流向任何其他芯片。这些通道是异步的，每个方向的运行速度在500到800 Mb/s之间。ATOMIC是一种基于马赛克技术的局域网，并根据局域网的需要进行了一些修改。ATOMIC的理念是，具有高带宽和低延迟的高性能LAN是一个大型“背板”(即大型计算机内部通信)，而不是像ATM这样的小型WAN。然而，将马赛克通信扩展到局域网必须解决一些新的问题，例如:

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The 8th IEEE Workshop on Computer Communications

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