11/7/2022 0 Comments Linpack benchmark results![]() ![]() One advantage to Linpack is that, thanks to its simplicity, supercomputer keepers can improve their scores on a relatively periodic basis, which makes for exciting news coverage as different facilities and system builders vie with one another for the next top spot. It is important to keep in mind that it is one number and it should be taken in the context of a number of things,” argued Jack Dongarra, one of the judges for the ranking, during the awards presentation. ![]() “Linpack has many problems with it, but it has a few positive things. I don’t want to make the Top500 just a contest for the number of GPUs,” noted an attendee at the Top500 awards ceremony. “It is difficult to figure out the real application speed from the benchmark. While grumbling about Linpack is nothing new, the discontent was pronounced this year as more systems, such as the Tianhe-1A, used GPUs (graphics processing units) to boost Linpack ratings, in effect gaming the Top500 list. Placing second was the DOE’s Oak Ridge Leadership Computing Facility’s Jaguar system, reporting 1.75 petaflops. In the latest iteration, unveiled Sunday, China’s newly built Tianhe-1A system topped the list, reporting a sustained performance of 2.57 petaflops. Department of Energy’s Lawrence Berkeley National Laboratory and the University of Tennessee, Knoxville. The Top500 list is compiled twice a year by researchers at the University of Mannheim, Germany the U.S. Linpack benchmark results android#Many question the use of a single metric to rank the performance of something as mind-bogglingly complex as a supercomputer.ĭuring one panel at the SC2010 conference this week in New Orleans, one high-performance-computing vendor executive joked about stringing together 100,000 Android smartphones to get the largest Linpack number, thereby revealing the “stupidity” of Linpack. With the Top500 though, the discontent centers around the single metric used to measure the supercomputers, called Linpack. The selection process for the Academy Awards (“The Oscars”), run by the Academy of Motion Picture Arts and Sciences, is shrouded in mystery, and, perhaps not surprisingly, observers grumble over which movies and people receive awards and which remain neglected. “The list is unclear exactly what it measures,” agreed Dave Turek, who heads up IBM’s deep computing division, in an interview last week. “It is not a representative benchmark for the industry.” “The Top 500 an artificial problem - it doesn’t measure about 80 per cent of the workloads” that are usually run on supercomputers, said John Hengeveld, director of technical compute marketing for Intel’s Data Centre Group, speaking on the sidelines of the Supercomputer 2010 conference this week. Like Hollywood’s Academy Awards, the Top500 list of supercomputers is dutifully watched by high-performance computing (HPC) participants and observers, even as they vocally doubt its fidelity to excellence. ![]()
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