Comments on: ORNL’s Jaguar Shatters Petaflop Barrier http://insidehpc.com/2008/11/10/ornls-jaguar-shatters-petaflop-barrier/ HPC News Without the Noise for Supercomputing Professionals | insideHPC Sun, 19 May 2013 10:46:54 +0000 hourly 1 http://wordpress.org/?v=3.1.1 By: scalability.org » Blog Archive » Now we are talking peta-flops … baby! http://insidehpc.com/2008/11/10/ornls-jaguar-shatters-petaflop-barrier/#comment-115701 scalability.org » Blog Archive » Now we are talking peta-flops … baby! Mon, 10 Nov 2008 21:24:40 +0000 http://insidehpc.com/?p=2895#comment-115701 [...] A petaflop here, a petaflop there, and soon we are talking about real performance [...] [...] A petaflop here, a petaflop there, and soon we are talking about real performance [...]

]]> By: Mark http://insidehpc.com/2008/11/10/ornls-jaguar-shatters-petaflop-barrier/#comment-115678 Mark Mon, 10 Nov 2008 19:31:39 +0000 http://insidehpc.com/?p=2895#comment-115678 Uh...that's not actually what that release says. It says they ran "an unprecedented superconductivity calculation that achieved a sustained performance of more than 1.3 petaflops." Now, that's very cool. The app scales to that size, runs across both systems, gets great performance. But is it double or single precision? And what about the Linpack performance? The 1.6PF peak here, and the 1.3PF peak of Roadrunner are double precision. I'm very curious to see next week's Top500 to see what the apples to apples (as much as possible) comparison is. Uh…that’s not actually what that release says. It says they ran “an unprecedented superconductivity calculation that achieved a sustained performance of more than 1.3 petaflops.”

Now, that’s very cool. The app scales to that size, runs across both systems, gets great performance. But is it double or single precision? And what about the Linpack performance?

The 1.6PF peak here, and the 1.3PF peak of Roadrunner are double precision. I’m very curious to see next week’s Top500 to see what the apples to apples (as much as possible) comparison is.

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