Author: Uri Blass
Date: 13:32:56 09/03/02
Go up one level in this thread
On September 03, 2002 at 15:50:45, Matthew Hull wrote: >On September 03, 2002 at 15:42:08, Gian-Carlo Pascutto wrote: > >>http://sjeng.sourceforge.net/ftp/hyatt1.png >> >>I will try to upload the full article as soon as I can. >> >>-- >>GCP > >You've got to be kidding. When Vincent posts the numbers, he's got all these >trailing zeros. What's with that? > >It is Vincent that's faking numbers here, not Bob. Bob's numbers are just >rounded off. > >Vincent is the one emitting bogons here. In most of cases if you divide the number for 2processors by 2,you get the number for one processor. The numbers are big so it means that the speedup is in most cases 1.999-2.001 and there are few cases when there is a big difference. The question is if it is logical. Is there a reason to expect the speed up from a cray to have smaller variance relative to the speed up from regular programs and Is there a reason to see most time 1.999-2.001 numbers of speed up and in few cases to see significantly lower numbers? Uri
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