mersenneforum.org Sieving drive for k=1005-2000 n=200K-500K
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2008-12-30, 12:49   #34
Mini-Geek
Account Deleted

"Tim Sorbera"
Aug 2006
San Antonio, TX USA

10AB16 Posts

4000G-4050G complete, factors attached. I'll sieve another 50G after I finish the next section in my main drive processing, which should be on the 2nd. For now I'm not reserving any more.
Attached Files
 factors.zip (29.7 KB, 64 views)

 2008-12-30, 13:39 #35 gd_barnes     May 2007 Kansas; USA 72·11·19 Posts With the primes just pouring in at top-5000 as a result of PrimeGrid running an effort on the Proth side similar to what we are currently for k<1200 and at lower n-ranges, it looks like n=350K will be at n=350K by Jan. 5th or earlier. Since people reserved and divided up their ranges on their cores assuming a Jan. 15th completion date, we'll stick with our plans here but I'll put another quad on it starting later today or on Weds that will boost the reserved ranges to P=~7T. On Jan. 5th, my 1st 2 quads will finish and I'll be able to do another P=1.6T range by Jan. 15th. That would put it at P=8.6T so we'd likely just need a few more smaller reservations to get us where we need to be. The drive will still be n=350K-500K but the first few primes may be non-top-5000. I'm now estimating that the 5000th prime will be at n=351K by the time we start. As if we hadn't done so already, PrimeGrid has demonstrated conclusively that our method of searching for primes is the wave of the future! Gary Last fiddled with by gd_barnes on 2009-01-01 at 04:13
2008-12-30, 15:29   #36
MyDogBuster

May 2008
Wilmington, DE

285210 Posts

Quote:
 Ian, how far from completion are you on the P=1.4T-1.8T range? If you're < 3 days from completion, we'll wait on it. If we're gonna be undersieved for part of it, we may as well minimize how much we are undersieved by. lol
My trusty countdown timer says that my 1.4-1.8T sieves won't be done until Jan 4th about 10PM, about 5 1/2 days.

I'm up to 1.506T on the 1.4-1.6 sieve.

Last fiddled with by MyDogBuster on 2008-12-30 at 15:31

2008-12-30, 15:30   #37
Flatlander
I quite division it

"Chris"
Feb 2005
England

40358 Posts

Quote:
 Originally Posted by Flatlander ... My reservation will finish late 01/01/09 GMT. (Looks like >20,000 factors.)
In case you didn't see my second edit.

 2009-01-01, 04:29 #38 gd_barnes     May 2007 Kansas; USA 72·11·19 Posts I moved all of the posts specifically related to the now-running n=350K-352K range to the 8th drive thread.
 2009-01-01, 10:03 #39 gd_barnes     May 2007 Kansas; USA 280116 Posts Reserving P=5900G-7100G. I'm adding a quad to the effort. ETA is early on Jan. 16th. My current range on 2 quads will be done very early on Jan. 6th. At that point, I think we'll have everyone's factors up to either P=3800G or P=4050G. We'll remove all the factors from the file and calculate an optimum sieve depth for the entire range. I'm estimating it will be P=9000G-10000G somewhere. With the above 2 quads done on Jan. 6th, I'll be able reserve another P=1600G range that should also complete on Jan. 16th. Taking that into account, we'd likely only need another P=500G-1000G worth of reservations from everyone to complete the sieving. With the pressure off now, Jan. 20th is still what we're shooting for but if we can be done a little early, it'll be that much sooner we can get down to some serious prime finding. Gary Last fiddled with by gd_barnes on 2009-01-01 at 10:30
2009-01-01, 15:59   #40
Flatlander
I quite division it

"Chris"
Feb 2005
England

31×67 Posts

3400-3600G complete.
3600-3800G will finish in a few hours.
Attached Files
 factors3400-3600.zip (141.8 KB, 68 views)

2009-01-02, 13:47   #41
Flatlander
I quite division it

"Chris"
Feb 2005
England

31·67 Posts

3600-3800G complete.
Attached Files
 factors3600-3800.zip (131.6 KB, 68 views)

 2009-01-03, 03:32 #42 MyDogBuster     May 2008 Wilmington, DE 22×23×31 Posts We could use more help in the sieving effort. The quicker we get the sieving done, the quicker we get pairs loaded to test. I, for one, hate wasting time testing pairs that I shouldn't have to. We are booked to 7.1T, we need to get to 9T to have an optimal sieve. Everyone testing the pairs should help with the sieve. Last fiddled with by MyDogBuster on 2009-01-03 at 03:32
 2009-01-03, 03:58 #43 Mini-Geek Account Deleted     "Tim Sorbera" Aug 2006 San Antonio, TX USA 17·251 Posts Reserving 7100G-7200G.
 2009-01-03, 04:45 #44 IronBits I ♥ BOINC!     Oct 2002 Glendale, AZ. (USA) 3·7·53 Posts I'd love to help, but I don't recall how to do a darn thing with sieve, nor what software or how to go about it. I asked Max to send me a care package that I can unzip to some directory and run some program on 8 cores, Intel I7, Vista 64bit. Let's see what happens...

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