----- Original Message ----- From: "Bruce Leenstra" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, December 15, 2001 1:21 AM Subject: Re: Mersenne: CNET coverage of M39: Very good
> Perhaps the 200 years of work done each day refers to the completed units > turned in that day. But 73,000 is more than a third of the total ... > If it represents all the CPU time, that means that 2/3's of the time > Prime95 has lost control of the cpu. Maybe Prime95 is too polite, it > shouldn't defer to all those silly business apps. I'm not sure many outside this list would agree with your last point. :-) In my experience prime95/mprime gets >95% of the processor even when I'm making heavy use of the machine. That goes up to >99.9% when I'm not using it. Also I would guess that a state of the art PC runs at 20 or more times the speed of a P90, while an entry level machine would be about half that. So I'm lead to some combination of the following conclusions:- 1. Most GIMPS machines are obsolete, i.e less than entry level. 2. Most GIMPS machines are on for only a few minutes each day on average. 3. One or both of the two figures published is be incorrect. 4. The figure for the number of machines includes many that are not really active. > Bruce Daran _________________________________________________________________________ Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
