20080217, 00:41  #12 
A Sunny Moo
Aug 2007
USA (GMT5)
3·2,083 Posts 

20080217, 00:58  #13 
Jul 2007
Tennessee
2^{5}·19 Posts 
You may want test it on this sieve. I have similar hardware and with sr2...
64bit will do 10e9 in less than 10 hours 32bit will do 10e9 in less than 16 hours 
20080217, 01:24  #14  
A Sunny Moo
Aug 2007
USA (GMT5)
3·2,083 Posts 
Quote:
In the meantime, feel free to use either srsieve or sr2sieve, whichever one you find fasterthey both produce compatible results, so it won't make any difference on my end. 

20080217, 07:31  #15 
May 2007
Kansas; USA
5·2,017 Posts 
It is possible that sr2sieve is now faster with 351 k's like this. It may also depend on the type of machine your using. When I started the huge sieve for 400<k<=1001 (301 k's) for n=260K600K, srsieve was faster but that was before the most recent version of sr2sieve that Geoff put out there on 12/14/07.
The newer sr2sieve for the 50 k's for 300<k<400 for n=260K1M is clearly faster. So yeah, try both on your machine for these 351 k's. BTW, the estimated optimum of 550G was an 'extraploted' guess. It assumed that an LLR test of a candidate at n=212K (70% of the nrange of n=100K260K) took 60 secs. and it took into account the removal rate that Anon was getting on his machine at P=~19G. I didn't actually run the test. Anon or whomever, as we get past P=~200G, we'll see if we can nail down a better estimated optimum sieve depth. Technically with nmax being > 2x nmin, it's a little more efficient to break off a large chunk while continuing to sieve the higher nranges but personally, I don't think it's worth messing with at these lower nranges. In the mean time, Anon, can you run an LLR test on your machine for a candidate around n=212K? That'll give a removal rate to shoot for on a comparable machine. After 300<k<400 is done sieving to P=6T (and breaking off n=260K600K) towards the end of February, I'll put 3 cores on this effort if it's not already done. That'll leave me 56 cores to continue 300<k< 400 for n=600K1M for anticipated completion sometime in late March. At that point, we'll have 3 different nranges that people can test at for top5000 primes. I'm hoping the higher nranges will draw in even more people who like to find much larger primes. Gary 
20080217, 13:40  #16 
I quite division it
"Chris"
Feb 2005
England
2077_{10} Posts 
To use sr2sieve do I just download it and change "srsieve" in the .bat file?
Last fiddled with by Flatlander on 20080217 at 13:41 
20080217, 14:29  #17  
A Sunny Moo
Aug 2007
USA (GMT5)
3×2,083 Posts 
Quote:
Code:
sr2sieve p 10e9 P 20e9 i nplbdoublechecksieve_10G.txt Last fiddled with by mdettweiler on 20080217 at 14:29 

20080217, 14:33  #18  
A Sunny Moo
Aug 2007
USA (GMT5)
1100001101001_{2} Posts 
Quote:
Quote:
Quote:
Anon Last fiddled with by mdettweiler on 20080217 at 14:33 

20080217, 18:13  #19 
I quite division it
"Chris"
Feb 2005
England
4035_{8} Posts 
20G30G finished.
Taking 50G70G. srsieve 130,000 p/sec (20G30G) sr2sieve 230,000 p/sec (50G70G) Last fiddled with by Flatlander on 20080217 at 18:30 
20080217, 18:49  #20  
A Sunny Moo
Aug 2007
USA (GMT5)
1869_{16} Posts 
Quote:
I'll change the instructions in the first post so that they tell people to use sr2sieve. I'll also update the sieve file archive to include the updated batch file and shell script. 

20080217, 19:05  #21 
A Sunny Moo
Aug 2007
USA (GMT5)
6249_{10} Posts 
Okay, I updated the first post in this thread to reflect the change to sr2sieve. The instructions are significantly different, so you'll want to read them again.

20080217, 20:24  #22  
I quite division it
"Chris"
Feb 2005
England
31·67 Posts 
I'm already running this:
Quote:


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