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-   -   Team sieve #33: c147 from 4788:i2902 (https://www.mersenneforum.org/showthread.php?t=16494)

jrk 2012-01-25 18:26

Team sieve #33: c147 from 4788:i2902
 
[B]Feb 6: Post-processing has begun! ETA: Feb 6[/B]
[B]Feb 6: Post-processing complete[/B]
[code][color=blue]# sieve with ggnfs lasieve4 I14e on alg side from Q=7M to 26M[/color]
# aq4788:2902
n: 519477233458809944274462307769789622171656483385514941102549625162939672508851026254735720296563793696672725531438122619257908020453079546743088081
# norm 3.372592e-14 alpha -7.068844 e 8.729e-12 rroots 3
skew: 1665582.85
c0: -953139681083704760050089658234976027
c1: 1464692957284274645788586940108
c2: -29605332992848501471703
c3: -1379437007976712506
c4: 286328143276
c5: 290472
Y0: -17802967967747404322555995440
Y1: 7977258362523757
rlim: 14000000
alim: 14000000
lpbr: 28
lpba: 28
mfbr: 56
mfba: 56
rlambda: 2.5
alambda: 2.5
[/code][B]Reservations:[/B][code]
6- 7M Mini-Geek (done, 1662129 relations)
7- 8M EdH (done, ~1.65M relations)
8-10M EdH (done)
10-12M EdH (done)
12-14M EdH (done)
14-20M EdH (done)
20-24M Mini-Geek (done, 5636606 relations)
24-25M Mini-Geek (done, 1337697 relations)
25-26M Mini-Geek (done, 1323433 relations)
[/code][B]Total relations: 31169535[/B]

EdH 2012-01-30 04:01

Taking 10M-12M for my next nibble...

EdH 2012-01-31 15:03

12M-14M

EdH 2012-02-01 21:34

More nibbling: 14M-20M

Mini-Geek 2012-02-01 23:57

Reserving 20M-24M.

Mini-Geek 2012-02-02 00:01

I'll do the post-processing, unless EdH would prefer to, or someone would like to offer a better machine than 4 cores of i5-750@2.8 GHz. I recently upgraded to 8 GB of memory and a 64-bit OS, so I can handle something like this now. :tu:

EdH 2012-02-02 05:45

[QUOTE=Mini-Geek;288040]I'll do the post-processing, unless EdH would prefer to, or someone would like to offer a better machine than 4 cores of i5-750@2.8 GHz. I recently upgraded to 8 GB of memory and a 64-bit OS, so I can handle something like this now. :tu:[/QUOTE]
You may have it. My machines are a bit weak. I might even need to give back some of my latest range. I just lost about half a day of sieving on a lot of cores due to a power outage and no checkpoints, "since I was only doing 100k" on most of them.:sad:

If someone wants some or all of 16M-20M, let me know. I'll plod along unless or until...

Mini-Geek 2012-02-02 12:52

[QUOTE=EdH;288061]My machines are a bit weak. I might even need to give back some of my latest range. I just lost about half a day of sieving on a lot of cores due to a power outage and no checkpoints, "since I was only doing 100k" on most of them.:sad:[/QUOTE]
Sorry to hear that. :sad:
It's been a while since I've done NFS sieving...I thought that the output file doubled as a checkpoint, since the lasieve program run with -R for resume can read that and see where it left off? Is there an option or something to create a checkpoint file? Is the checkpoint named .last_spq0 by default? I noticed a .last_spq0 file in my directory, but since I have 4 instances running, they're overwriting each other.

Andi47 2012-02-02 13:26

The .last_spq0 contains information which Q was the last one sieved. This information is also contained in the output file (and normally this is not lowt when there is a power outage). When starting the siever with the -R flag, the siever will parse the last special Q from the last complete line in the outputfile and then continues sieving from where it was interrupted. So the .last_spq0 file is [I]not[/I] needed for continuing an interrupted range.

EdH 2012-02-02 14:47

[QUOTE=Andi47;288075]The .last_spq0 contains information which Q was the last one sieved. This information is also contained in the output file (and normally this is not lowt when there is a power outage). When starting the siever with the -R flag, the siever will parse the last special Q from the last complete line in the outputfile and then continues sieving from where it was interrupted. So the .last_spq0 file is [I]not[/I] needed for continuing an interrupted range.[/QUOTE]
Thanks! I guess I could have just restarted with -R, then. I didn't see any resume files, like I do when I use Aliqueit, so I mistook that for meaning I had to restart from scratch. I shall try to remember this for future work.

EdH 2012-02-03 22:34

[QUOTE=EdH;288061]...If someone wants some or all of 16M-20M, let me know. I'll plod along unless or until...[/QUOTE]
I am retracting this portion of [URL="http://www.mersenneforum.org/showpost.php?p=288061&postcount=7"]post #7[/URL]. I am now within the 17M portion of the range and expect to continue through 20M. 24M-26M is still available...


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