Mapping strategies for the PERCS architecture
Mapping strategies for the PERCS architecture
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PERCS 架构的映射策略
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
A. Ramanan
中科院分区：
文献类型：
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作者：
Venkatesan T. Chakaravarthy;M. Kedia;Yogish Sabharwal;N. Katta;R. Rajamony;A. Ramanan
PERCS系统是IBM为响应DARPA的一项挑战而设计的，该挑战要求高生产率高性能计算系统。IBM PERCS体系结构是一种具有低直径和高二分带宽的两级直接网络。映射和路由策略在这种拓扑上的应用程序的性能中起着重要的作用。在本文中，我们研究的映射策略PERCS架构，研究如何映射到一个给定的作业的物理处理节点的任务。我们开发和设计良好的映射策略，最大限度地减少拥塞的基本原则。这是通过理论研究的一些常见的通信模式下的直接和间接的路由机制支持的架构。
The PERCS system was designed by IBM in response to a DARPA challenge that called for a high-productivity high-performance computing system. The IBM PERCS architecture is a two level direct network having low diameter and high bisection bandwidth. Mapping and routing strategies play an important role in the performance of applications on such a topology. In this paper, we study mapping strategies for PERCS architecture, that examine how to map tasks of a given job on to the physical processing nodes. We develop and present fundamental principles for designing good mapping strategies that minimize congestion. This is achieved via a theoretical study of some common communication patterns under both direct and indirect routing mechanisms supported by the architecture.