sr2sieve client
 

Quick question- Is the sr2sieve client ok to sieve with or does it miss factors?
At the moment I am still running with jjsieve but am also running the same range on the same box with sr2 just as a test. 1.66 c2d runs jj sieve around 324kp/s sr2 running same range at 436kp/s. Much quicker but does it do as good a job is my question:ermm:

[QUOTE=mgpower0;109636]Quick question- Is the sr2sieve client ok to sieve with or does it miss factors?
At the moment I am still running with jjsieve but am also running the same range on the same box with sr2 just as a test. 1.66 c2d runs jj sieve around 324kp/s sr2 running same range at 436kp/s. Much quicker but does it do as good a job is my question:ermm:[/QUOTE]

SR2sieve uses CPU time to report its speed.
JJsieve uses Wall (elapsed) time to report its speed.

The only way that I know to compare the two, is too take note of the time before and after each program processes a 1G interval when they are running on the same system with all the same things going on, or not going on, as the case may be.

yeah im running both on a core2duo jj on 1 core sr2 on the other (both the same range) jjsieve range had about 4hrs start so I guess if sr2 catches up then that will answer part one of the question. Part 2 will sr2 find all the factors. The computer they are running on isn't used for anything apart from DC so noting much else should cut into eithers cpu share

I don't think sr2sieve misses any factors. As for the speed, I think sr2sieve is faster but you should check it on your machine.:smile:

yep sr2 overtook jjsieve during the night, and found the same factors so im happy

Can this client also be use in psp or sob sieving? Is it only for linux or ppc? Not really sure. Does is it have windoze client?

[url]http://www.geocities.com/g_w_reynolds/sr2sieve/[/url]

Thanks for the link Citrix. I am running this range on a X2 [EMAIL="4600@2640"]4600@2640[/EMAIL]. With jjsieve it was getting 523 kp/s now I guess it is getting 539 kp/s. Not bad of an increase if it does not miss many factors. More importanly am I doing this correctly. Do I just wait for the results and submit it? Thanks.

e:smile:


07/07/2007 01:52 PM 73 checkpoint.txt
07/01/2007 09:46 PM 4,498 README.txt
05/06/2007 07:06 AM 13,538,210 SoB.dat
07/06/2007 06:13 AM 86,016 sr2sieve-amd.exe
07/06/2007 06:13 AM 87,040 sr2sieve-intel.exe
07/07/2007 01:52 PM 801 sr2sieve.log
07/07/2007 01:40 PM 15 sr2work.txt
7 File(s) 13,716,653 bytes
2 Dir(s) 94,618,456,064 bytes free
D:\Psr2sieve>sr2sieve-amd -s
sr2sieve 1.5.13 -- A sieve for multiple sequences k*b^n+/-1.
Read 2320262 terms for 18 sequences from dat format file `SoB.dat'.
Split 18 base 2 sequences into 178 base 2^360 subsequences.
Resuming from checkpoint pmin=633500302335713 in `checkpoint.txt'.
Expecting to find factors for about 53.71 terms in this range.
sr2sieve started: 991 <= n <= 49999997, 633500302335713 <= p <= 634000000000000
p=633500723208043, 538998 p/sec, 0 factors, 0.14% done, ETA 18 Jul 08:07

[QUOTE=engracio;109819]Thanks for the link Citrix. I am running this range on a X2 [EMAIL="4600@2640"]4600@2640[/EMAIL]. With jjsieve it was getting 523 kp/s now I guess it is getting 539 kp/s. Not bad of an increase if it does not miss many factors. More importanly am I doing this correctly. Do I just wait for the results and submit it? Thanks.

e:smile:


07/07/2007 01:52 PM 73 checkpoint.txt
07/01/2007 09:46 PM 4,498 README.txt
05/06/2007 07:06 AM 13,538,210 SoB.dat
07/06/2007 06:13 AM 86,016 sr2sieve-amd.exe
07/06/2007 06:13 AM 87,040 sr2sieve-intel.exe
07/07/2007 01:52 PM 801 sr2sieve.log
07/07/2007 01:40 PM 15 sr2work.txt
7 File(s) 13,716,653 bytes
2 Dir(s) 94,618,456,064 bytes free
D:\Psr2sieve>sr2sieve-amd -s
sr2sieve 1.5.13 -- A sieve for multiple sequences k*b^n+/-1.
Read 2320262 terms for 18 sequences from dat format file `SoB.dat'.
Split 18 base 2 sequences into 178 base 2^360 subsequences.
Resuming from checkpoint pmin=633500302335713 in `checkpoint.txt'.
Expecting to find factors for about 53.71 terms in this range.
sr2sieve started: 991 <= n <= 49999997, 633500302335713 <= p <= 634000000000000
p=633500723208043, 538998 p/sec, 0 factors, 0.14% done, ETA 18 Jul 08:07[/QUOTE]

You can look in this thread, the latest version might not be the fastest.
[url]http://www.mersenneforum.org/showthread.php?p=109781[/url]

Also, as already mentioned the units for speed measurement in the 2 programs do not correlate. So look for time for a range of billion numbers.

i have found sr2 sieve to be quicker on my intels by quite a bit, but on the amd there seems to be little if any difference over jjsieve

Well I took a 1G slice and started both sr2sieve and jjsieve on my e6300 c2d. Let it run all night and see how they compare in the morning.

e:smile: