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2008-02-17, 00:41   #12
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

3·2,083 Posts

Quote:
 Originally Posted by AES Is there a reason you're not using sr2sieve? I'll take 30e9 to 50e9
srsieve is generally faster when you have more than 60-70 k's in the sieve.

Thanks for helping out!

 2008-02-17, 00:58 #13 AES   Jul 2007 Tennessee 25·19 Posts You may want test it on this sieve. I have similar hardware and with sr2... 64-bit will do 10e9 in less than 10 hours 32-bit will do 10e9 in less than 16 hours
2008-02-17, 01:24   #14
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

3·2,083 Posts

Quote:
 Originally Posted by AES You may want test it on this sieve. I have similar hardware and with sr2... 64-bit will do 10e9 in less than 10 hours 32-bit will do 10e9 in less than 16 hours
Hmm. Okay, I'll check it out.

In the meantime, feel free to use either srsieve or sr2sieve, whichever one you find faster--they both produce compatible results, so it won't make any difference on my end.

 2008-02-17, 07:31 #15 gd_barnes     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 2x n-min, it's a little more efficient to break off a large chunk while continuing to sieve the higher n-ranges but personally, I don't think it's worth messing with at these lower n-ranges. 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
 2008-02-17, 13:40 #16 Flatlander I quite division it     "Chris" Feb 2005 England 207710 Posts To use sr2sieve do I just download it and change "srsieve" in the .bat file? Last fiddled with by Flatlander on 2008-02-17 at 13:41
2008-02-17, 14:29   #17
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

3×2,083 Posts

Quote:
 Originally Posted by Flatlander To use sr2sieve do I just download it and change "srsieve" in the .bat file?
No, its command line switches are a little different. Your .bat file will need to look like this:
Code:
sr2sieve -p 10e9 -P 20e9 -i nplb-doublecheck-sieve_10G.txt
Other than that, it's pretty much the same.

Last fiddled with by mdettweiler on 2008-02-17 at 14:29

2008-02-17, 14:33   #18
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

11000011010012 Posts

Quote:
 Originally Posted by gd_barnes 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
I'll try that sometime today.

Quote:
 Originally Posted by gd_barnes 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 n-range of n=100K-260K) 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 n-max being > 2x n-min, it's a little more efficient to break off a large chunk while continuing to sieve the higher n-ranges but personally, I don't think it's worth messing with at these lower n-ranges. 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.
Okay, I'll do that soon.

Quote:
 Originally Posted by gd_barnes After 300
Okay, cool.

Anon

Last fiddled with by mdettweiler on 2008-02-17 at 14:33

 2008-02-17, 18:13 #19 Flatlander I quite division it     "Chris" Feb 2005 England 40358 Posts 20G-30G finished. Taking 50G-70G. srsieve 130,000 p/sec (20G-30G) sr2sieve 230,000 p/sec (50G-70G) Last fiddled with by Flatlander on 2008-02-17 at 18:30
2008-02-17, 18:49   #20
mdettweiler
A Sunny Moo

Aug 2007
USA (GMT-5)

186916 Posts

Quote:
 Originally Posted by Flatlander 20G-30G finished. Taking 50G-70G. srsieve 130,000 p/sec (20G-30G) sr2sieve 230,000 p/sec (50G-70G)
Oh, wow!

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.

 2008-02-17, 19:05 #21 mdettweiler A Sunny Moo     Aug 2007 USA (GMT-5) 624910 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.
2008-02-17, 20:24   #22
Flatlander
I quite division it

"Chris"
Feb 2005
England

31·67 Posts

I'm already running this:
Quote:
 sr2sieve -p 50e9 -P 70e9 -i nplb-doublecheck-sieve_10G.txt
is that ok?

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