----- Original Message ----- From: "Lynn W. Taylor" <[email protected]> To: "Martin" <[email protected]>; "BOINC dev" <[email protected]> Sent: Thursday, October 08, 2009 2:30 AM Subject: Re: [boinc_dev] [boinc_alpha] Card Gflops in BOINC 6.10
> This will be my final post on the subject. > > To take the clock analogy one step further. > > You're saying that your cesium clock is much better than the cheezy $1 > westclox wind up I got at the local bargain shop. > > ... and I'm saying that the cobblestone standard explicitly calls for > the use of a wind-up clock. > > I agree with everything you've said. I agree that Whetstones and > Dhrystones are not the best predictors of performance. > > But the standard says "you put the dhrystone number for your machine > here, and you put the whetstone number for your machine here, and you > put the number of CPU seconds here, and that's your credit, in > cobblestones." Well, what we have in real world: Meter was defined as length of very particular etalon rod. The definition was - the length of this very rod IS the 1 meter. Of course there were some deviations in this length (it will depend from temperature for example). Now we define 1 meter as 1/299792458-th of length that light passes in vacuum per 1 second. (and second defined via number of periods of particular spectral line). We CHANGED definition of meter ! What remained the same ? The purpose of this unit. Length unit is needed to measure distances. Now, with new meter definition, we can measure distances more precisely. IMO the same situation with cobblestones. Theire definition SHOULD BE CHANGED to ensure more precise crediting. _______________________________________________ boinc_dev mailing list [email protected] http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev To unsubscribe, visit the above URL and (near bottom of page) enter your email address.
