Mini-drive for k=3010-3200 n=420259-600000 - Page 30

gd_barnes · 2010-08-09, 20:50

3015*2^532433-1 is prime

gd_barnes · 2010-08-10, 16:26

3035*2^533306-1 is prime

mdettweiler · 2010-08-11, 03:25

Reserving 535K-540K for Gary's PRPnet server. This should adequately cover any demand for work while I'm away especially considering that most if not all of the cores on there will be out for the rally.

gamer007 · 2010-08-11, 20:53

530K-531K is complete. No primes. I'm gonna postpone my work on this mini-drive until the rallys here and Primegrid are complete.

mdettweiler · 2010-08-21, 19:43

526K-530K completed by Gary's private PRPnet server; 3 primes previously reported. Results attached.

gamer007 · 2010-08-25, 00:27

Reserving 540K-541K.

gd_barnes · 2010-08-25, 06:00

A PM has been sent to Grueny asking for the status of his range.

grueny · 2010-08-26, 06:05

523K-524K complete. no primes

gamer007 · 2010-09-01, 00:50

540K-541K is complete. No primes.

Reserving 541K-542K.

gamer007 · 2010-09-06, 00:56

541K-542K is complete. No primes.

mdettweiler · 2010-09-14, 16:05

531K-540K complete by Gary's PRPnet server; 4 primes previously reported. Results emailed to Gary.

As of now, the next available file on this drive is at n=542K, while the top-5000 entry level is at n=547013. The rapid progress of the top-5000 entry level is mostly due to PrimeGrid's auto-reporting script having malfunctioned a while back and a huge backlog of n=666666 primes being reported over the last week. (I'm pretty sure that this isn't a new "normal" output level for PrimeGrid--considering that they didn't crank out nearly that many primes per day on their last Proth Prime Search rally, for which primes come much more easily, I'm assuming that this is just one really big backlog.)

Even before PrimeGrid's big dumps began, though, it was a bit of an uphill battle to keep this mini-drive ahead of the cutoff. Thus, Gary and I have been discussing the possibility of stopping the mini-drive here. I always hate to see a good sieve file go to waste, so personally I'd like to see it go all the way up to n=650K, but I do realize that we're spreading ourselves a little thin--with the top-5000 cutoff rising rapidly, those resources are probably better put to work on the 11th Drive to keep it from falling behind on the cutoff. (Currently it's about n=40K ahead of the cutoff, but that could change really fast.)

However, there is one alternate idea that I thought of which may be worth considering. gamer007, if you (or anybody else) is still interested in crunching the mini-drive, we could cut the sieve file in half from n=542K onward: that is, do k=3010-3100 instead of 3010-3200. It would then be twice as easy to keep up with the top-5000 cutoff, for which I believe one quad (or whatever gamer007 has been using) is quite sufficient.

Max

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2010-08-09, 20:50	#320
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	3015*2^532433-1 is prime

2010-08-10, 16:26	#321
gd_barnes May 2007 Kansas; USA 10100010011011₂ Posts	3035*2^533306-1 is prime

2010-08-11, 03:25	#322
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3×2,083 Posts	Reserving 535K-540K for Gary's PRPnet server. This should adequately cover any demand for work while I'm away especially considering that most if not all of the cores on there will be out for the rally.

2010-08-25, 00:27	#325
gamer007 Mar 2009 2·3·31 Posts	Reserving 540K-541K.

2010-08-25, 06:00	#326
gd_barnes May 2007 Kansas; USA 10395₁₀ Posts	A PM has been sent to Grueny asking for the status of his range.

2010-09-14, 16:05	#330
mdettweiler A Sunny Moo Aug 2007 USA (GMT-5) 3·2,083 Posts	531K-540K complete by Gary's PRPnet server; 4 primes previously reported. Results emailed to Gary. As of now, the next available file on this drive is at n=542K, while the top-5000 entry level is at n=547013. The rapid progress of the top-5000 entry level is mostly due to PrimeGrid's auto-reporting script having malfunctioned a while back and a huge backlog of n=666666 primes being reported over the last week. (I'm pretty sure that this isn't a new "normal" output level for PrimeGrid--considering that they didn't crank out nearly that many primes per day on their last Proth Prime Search rally, for which primes come much more easily, I'm assuming that this is just one really big backlog.) Even before PrimeGrid's big dumps began, though, it was a bit of an uphill battle to keep this mini-drive ahead of the cutoff. Thus, Gary and I have been discussing the possibility of stopping the mini-drive here. I always hate to see a good sieve file go to waste, so personally I'd like to see it go all the way up to n=650K, but I do realize that we're spreading ourselves a little thin--with the top-5000 cutoff rising rapidly, those resources are probably better put to work on the 11th Drive to keep it from falling behind on the cutoff. (Currently it's about n=40K ahead of the cutoff, but that could change really fast.) However, there is one alternate idea that I thought of which may be worth considering. gamer007, if you (or anybody else) is still interested in crunching the mini-drive, we could cut the sieve file in half from n=542K onward: that is, do k=3010-3100 instead of 3010-3200. It would then be twice as easy to keep up with the top-5000 cutoff, for which I believe one quad (or whatever gamer007 has been using) is quite sufficient. Max