mersenneforum.org Team sieve #30: c156 from 283752:i7004
 Register FAQ Search Today's Posts Mark Forums Read

 2011-11-04, 18:26 #1 LaurV Romulan Interpreter     Jun 2011 Thailand 34·113 Posts Team sieve #30: c156 from 283752:i7004 In the spirit of giving everyone something to keep them busy.... 283752 is currently being driven by 2^3 * 3. However, 7004 is the 16th line with the driver having the form 2^3 * 3^2; accordingly, there is a 50% chance of an escape on the next line. unconnected reported doing 1.5*t55 worth of ECM work and LaurV performed the poly search. ====================================== Got a poly after about a week. Is it (relatively) good? How good? How long the sieving will take on two cores of a core2 3Gigs? (about) Can that be taken as a "one man job?" Maybe I will give it a try.... Code: # Sieve with the 14e siever on the algrebraic side starting from 15M # Target is 56M raw relations n: 150334450606011724019777200211010468220565590046299234402254345532711750018652367487259651931850319063498312781804011647293058067263942651704486104870980321 skew: 14230655.24 c0: -520134197785689262516595081751266984241 c1: 809982347485060642501973343231813 c2: 321021768654971361269241683 c3: -4637554577292436357 c4: -1395390947346 c5: 17040 Y0: -1545689251703330366629739901868 Y1: 956597419325010283 rlim: 30000000 alim: 30000000 lpbr: 29 lpba: 29 mfbr: 58 mfba: 58 rlambda: 2.500000 alambda: 2.500000 Reservations: Code:  15 - 20M schickel 20 - 25M schickel 25 - 45M bsquared Last fiddled with by schickel on 2011-11-13 at 03:56 Reason: Updating reservations
2011-11-04, 19:21   #2
jrk

May 2008

3×5×73 Posts

Quote:
 Originally Posted by LaurV Got a poly after about a week. Is it (relatively) good? How good? How long the sieving will take on two cores of a core2 3Gigs? (about) Can that be taken as a "one man job?" Maybe I will give it a try....
Yes that is a good poly. My expected murphy score for a number of this size is about 2.71e-12 and your poly is 2.81e-12, so that is good. You should use ggnfs siever 14e and sieve on the -a side starting from specialq 15M until you have gathered 56M raw relations. Sieving will take about 3 to 4 weeks on your two cores, and the matrix about 2 days using msieve.

 2011-11-05, 04:21 #3 schickel     "Frank <^>" Dec 2004 CDP Janesville 1000010010102 Posts OK, so just to double down on everything, how about another team job?
 2011-11-05, 16:30 #4 henryzz Just call me Henry     "David" Sep 2007 Cambridge (GMT/BST) 132438 Posts I can do the postprocessing. It would be a good test for my computer now I have sorted the memory problems.
2011-11-06, 03:04   #5
schickel

"Frank <^>"
Dec 2004
CDP Janesville

84A16 Posts

Quote:
 Originally Posted by henryzz I can do the postprocessing. It would be a good test for my computer now I have sorted the memory problems.
OK, sounds good. I'm in the final stages of a c153; ETA for completing sieving is Monday at the latest. I'll start sieving on this after that..... My c153 is going at ~3.5M rels/day, so I'm not exactly a speed demon.

 2011-11-06, 15:38 #6 schickel     "Frank <^>" Dec 2004 CDP Janesville 2×1,061 Posts I'll take 15-20M.
 2011-11-12, 16:08 #7 schickel     "Frank <^>" Dec 2004 CDP Janesville 2·1,061 Posts I guess I'll take 20-25M, too.
 2011-11-12, 19:58 #8 bsquared     "Ben" Feb 2007 64418 Posts I'll take 25M to 45M
2011-11-13, 03:55   #9
schickel

"Frank <^>"
Dec 2004
CDP Janesville

1000010010102 Posts

Quote:
 Originally Posted by bsquared I'll take 25M to 45M
What's your ETA? I'm getting ~3+ rels/special_q, so with my 10 currently and your potential 60, that should be enough.

Still going to do the post, henryzz?

2011-11-13, 14:45   #10
bsquared

"Ben"
Feb 2007

3,361 Posts

Quote:
 Originally Posted by schickel What's your ETA? I'm getting ~3+ rels/special_q, so with my 10 currently and your potential 60, that should be enough. I'll taper off and start uploading when you're near to done. Still going to do the post, henryzz?
I'm about 75% done, so the ETA is later today sometime. [edit: about 7 hours from now]

I'll also offer to do the post processing... if you still want it henryzz, say the word and I'll upload my relations. otherwise, I'll grab schickel's and finish it.

Last fiddled with by bsquared on 2011-11-13 at 14:46

2011-11-13, 14:58   #11
schickel

"Frank <^>"
Dec 2004
CDP Janesville

2·1,061 Posts

Quote:
 Originally Posted by bsquared I'm about 75% done, so the ETA is later today sometime. [edit: about 7 hours from now] I'll also offer to do the post processing... if you still want it henryzz, say the word and I'll upload my relations. otherwise, I'll grab schickel's and finish it.
Sounds good, though henryzz may be away until later today, so he may not respond 'til later. Also, I won't be able to start uploading until after work this evening.

And, if possible, I had only just started hitting the 20M+ range, so it might pay to run the 21-25M range if you can....

 Similar Threads Thread Thread Starter Forum Replies Last Post jrk Aliquot Sequences 14 2012-03-04 07:55 jrk Aliquot Sequences 21 2011-11-22 17:57 SlashDude Riesel Prime Search 78 2006-05-14 16:56 grobie Riesel Prime Search 3 2005-11-16 08:46 SlashDude 15k Search 21 2003-12-23 16:31

All times are UTC. The time now is 00:45.

Sun Jan 24 00:45:36 UTC 2021 up 51 days, 20:56, 0 users, load averages: 2.91, 2.29, 2.07