On Wednesday 27 February 2002 06:26, Steve Harris wrote: > > For those of you interested in optimizing efficiency of LL testing: > > > > We are approaching first time tests of 15.30M exponents, at which point > > the Prime95 program will start using an 896K FFT. However, the P4-SSE2 > > section of the program will start using that larger FFT size at 15.16M > > exponents, making it (relatively) inefficient to test exponents between > > 15.16M and 15.30M on a P4. > > > > Since the Primenet server doesn't take this into consideration when > > assigning exponents, I would suggest you all have enough exponents queued > > up on your P4s before the server reaches 15.16M to keep them busy until > > it reaches 15.30M. I know there are other ways around it, but that is the > > simplest.
And I replied: > > Whilst I appreciate Steve's motives in making this suggestion, I have a > philosophical problem with it. If a few people hog these exponents, other > people with an equal need to "economise" will be unable to get them. > Overall I don't see that there is much gain, whilst there is scope for > resentment against the "hoggers" in a similar (but possibly less extreme) > way to the resentment felt against "poachers" of first-time LL test > assignments. On reflection I can see that there is merit in Steve's idea (provided that restraint is used i.e. not grabbing more work than is neccessary to bridge the rather small "exponent gap"). I wish to publicly apologise to Steve for any implication that he might be encouraging users to "hog" exponents. Regards Brian Beesley _________________________________________________________________________ Unsubscribe & list info -- http://www.ndatech.com/mersenne/signup.htm Mersenne Prime FAQ -- http://www.tasam.com/~lrwiman/FAQ-mers
