7:15 AM |
Breakfast and Registration |
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8:00 AM |
Session 1: Web Site Benchmarks and Synthetic Trace ModelsChair: Alex Mericas (IBM) |
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9:15 AM |
Coffee Break |
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9:45 AM |
Session 2: Commercial Workloads and PlatformsChair: Mauricio Breternitz (Intel) |
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11:00 AM |
Keynote |
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12:00 PM |
Lunch |
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1:00 PM |
Session 3: Java and MultimediaChair: John McCalpin (IBM) |
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2:40 AM |
Coffee Break |
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3:20 PM |
Session 4: Network and Handheld EnvironmentsChair: Ramesh Radhakrishnan (Dell) |
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John L. Gustafson leads the HPC workload characterization effort at Sun Labs in Mountain View, California. He joined Sun in 1999 after many years developing novel computer measurement approaches at Sandia National Laboratories and Ames Laboratory. Dr. Gustafson has won three R&D 100 Awards and has several patents, all in the area of computer performance analysis. His 1987 work with colleagues Gary Montry and Robert Benner at Sandia showed that the assumptions of Amdahl's law might not be appropriate for many HPC workloads, and introduced the paradigm referred to as "Gustafson's law" that removes unnecessarily pessimistic predictions about the power of massively parallel computing.
While business benchmarks have incorporated scaling ideas for years (TPC, ECPerf), only a handful of HPC benchmarks have had true scalability to a range of workloads. LINPEAK, SLALOM, and HINT were early efforts to scale the problem size as opposed to measuring execution time on a fixed problem size. We present benchmark design efforts being undertaken at Sun Labs to characterize HPC workloads in a new way that is totally architecture- independent and language-independent. The benchmarks can be scaled in many dimensions, not just size, to capture aspects such as precision requirements, load imbalance, I/O demands, and the variability of the workload as a function of time. Initial work shows that this approach has high predictive value and can yield better than 0.995 correlation with particular HPC workloads. Sun Labs plans to share this scalable workload suite with the HPC community when it is completed.
The workshop will be held at the Austin Marriott at the Capitol.