20090220, 08:40  #34  
May 2007
Kansas; USA
23545_{8} Posts 
Quote:
See the sieving drive here. Everything is explained there and the file is posted there. Please post your reservation when you are ready to start there. As for what size range to sieve on one highspeed 64bit quad: I suggest sieving a P=250G range on each core for a total of P=1000G (1T). It is taking my 64bit 2.4 Ghz Intel's ~1516 days and that is a reasonable length for that effort. After that is done, if you wish, then you can reserve another similarsize range. As for what Pranges to sieve, it's a bit of an unusual situation: As shown in the thread above, the first available ranges that would be available for 4 cores are: 4250G4500G 4750G5000G 5250G5500G 5750G6000G The reason for the noncontiguous Pranges is that Ian found that his slower AMD was going to take 74 days to do P=500G per core. At the same time that I asked you if you could put a quad on the effort, I asked him to halve his reservation on each core. Since both of you agreed, we have the above noncontiguous ranges that need to be filled in. If you aren't too fond of the noncontiguous ranges, it's no big deal. I can start on the above by ~Feb. 26th. As you'll be able to see by the 1st post in that drive, P=6250G is the 1st unreserved contiguous range that you can start with. Yes, all that I need is the factors.txt file. Thanks for offering to help sieve and messing with upgrading a machine or 2 to a 64bit O.S. I'm thinking that we'll need to go to P=15000G (15T) before we can break off the n=500K600K range, which will then keep our 8th drive moving along. Gary 

20090222, 15:34  #35 
I quite division it
"Chris"
Feb 2005
England
31·67 Posts 
3125*2^4053241 is prime.

20090224, 02:25  #36 
May 2007
Kansas; USA
10085_{10} Posts 
I saw that Brian found a couple of nice primes for n>600K on his work here. Excellent!
I just wanted to remind everyone to report the nranges completed on their k's here every couple of weeks or so. It helps Karsten keep his pages up to date. Thanks, Gary 
20090224, 10:10  #37 
Jun 2006
Chertsey Surrey UK
2·179 Posts 
Gary do you have a Prime radar ? :)

20090224, 10:39  #38 
May 2007
Kansas; USA
5·2,017 Posts 
I check the top5000 page status 23 times a day.
Keeping up with what other projects/individuals are doing helps in the direction of this project at times. For example, when I saw that PrimeGrid was searching all k<1200 (since increased to some higher k) on the Proth side to n=600K, I remembered that there were a huge # of holes on the Riesel side for k=10032000/n=50K500K, hence I started the sieving effort that is now the 8th/9th drives. Those 2 drives have been our most successful to date. 
20090227, 13:48  #39  
Jan 2006
deep in a whileloop
2×7×47 Posts 
Quote:
http://stats.ironbits.net/statsnew/drive_progress.php 

20090227, 15:05  #40 
I ♥ BOINC!
Oct 2002
Glendale, AZ. (USA)
459_{16} Posts 
Holy crap! Nice work

20090228, 13:03  #41 
May 2007
Kansas; USA
2765_{16} Posts 
Friggin cool, man. Very nice!

20090307, 13:50  #42 
I quite division it
"Chris"
Feb 2005
England
81D_{16} Posts 
3139*2^4158011 is prime.
The 93 ks mentioned here: http://mersenneforum.org/showpost.ph...7&postcount=12 are tested from 400k to (at least) 410k. 
20090318, 04:30  #43  
May 2008
Wilmington, DE
B12_{16} Posts 
Quote:
http://www.mersenneforum.org/forumdisplay.php?f=89 Any suggestions on where to post things for k>2000. I'd hate to have to post things in 2 places. Last fiddled with by MyDogBuster on 20090318 at 04:32 

20090318, 08:22  #44  
May 2007
Kansas; USA
5·2,017 Posts 
Quote:
Gary Last fiddled with by gd_barnes on 20090318 at 08:23 

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