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This document summarizes key insights from the Cluster 2002 and SOS7 conferences, focusing on advancements in cluster computing and strategies for fault tolerance in large-scale systems. The conferences aimed to unite the cluster community, establish best practices, and promote collaboration between academia and industry. Discussions included cluster management, middleware innovations, and component redundancy. Despite the positives, challenges such as system complexity and maintenance were highlighted, emphasizing the growing importance of cost-effective and robust fault-tolerant solutions in modern computing environments.
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Clusters, Fault Tolerance, and Other Thoughts Daniel S. Katz JPL/Caltech SOS7 Meeting 4 March 2003
Cluster 2002 http://www.mcs.anl.gov/cluster2002/ • 2002 IEEE International Conference on Cluster Computing, Chicago, 23-26 Sep. 2002 • Next 2 meetings are: • December 2003 in Hong Kong • September 2004 in San Diego • Of the 284 attendees at Cluster 2002 and 120 at SOS7, 23 are common to both meetings • Motivation: • The series of conferences and their sponsor, the Task Force for Cluster Computing (TFCC), were created to: • Bring the together the cluster community • Establish best practices • Provide educational material • Cross-fertilize ideas between industry and academia
Cluster 2002 Topics • Running a cluster and making it usable • Software for management, including configuration • Middleware software • Building a cluster • Software and hardware for networking • Choosing node hardware • Packaging hardware • Making use of a cluster • New and innovative applications
Cluster 2002 Results and Conclusions • Positives: • Software tools are getting better - management, configuration and administration • Interesting and promising work ongoing in: • Self-tuning software • Component redundancy • Applications • Clusters are enabling platforms due to low entry cost • Negatives: • Large (possibly heterogeneous) systems are not easy to build or maintain • Systems administration is normally underestimated and un(der)funded • Component failure in large systems can be a problem • Other: • Clusters are good for work for which we know they are good • Minimum cost clusters can handle some jobs well • Should design and build cluster to suit application needs
FALSE 2002http://false2002.vanderbilt.edu/ • Workshop on Fault-Adaptive Large-Scale Real-Time Systems • Held at Vanderbilt, 14-15 Nov. 2002 • Sponsored by NSF ITR Project: BTeV Real Time Embedded Systems • Of the 42 attendees at FALSE 2002 and 120 attendees at SOS7, 2 are common to both meetings (Tony Skjellum and I) • Motivation: • High Energy Physics community wants to build systems to monitor experiments • Others (DARPA, NASA) have an interest in similar systems • An occasion to share knowledge and plan future research • Topics: • Scaling fault tolerance up to large systems (the Fermi system will have 2-5K PEs) • Novel approaches to achieving fault tolerance at low cost (< 10% overhead) • How to make fault responses domain-specific (tools that enable the user to specify the response to different failures, and to implement these responses throughout the system) • Results/Consensus • No results from this initial meeting; just information sharing (w/ complete consensus)
General Thoughts • Fault-Tolerance is becoming important to large-scale systems • Embedded and non-embedded systems • Real-time and non-real-time systems • Is there a common solution (or partial solution) to this issue? • “There is no software problem an additional layer of abstraction won’t solve”
Thanks • Questions?
