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[QUOTE=swellman;469413]Well, adding 50M additional Q is projected to add ~55M relations for a total of 596M raw relations. And from the recent findings of VBCurtis that won’t be near enough for a 14e/33 job. Suggest Q be bumped up to 550M. From there we can bump it up in smaller increments until the matrix builds successfully at TD=70.
Or just bump Q up to 500M if there’s a risk of overshooting the minimum number of relations. I’ll keep at it until we build a good matrix. But 596M raw relations isn’t going to do it I think.[/QUOTE] I think this project is tougher than my 14e/33 effort, so you might need 680-700M raw relations to get a TD 120+ matrix. My job built at TD 140 with 670M raw relations, well below my expectations. I didn't try to build with fewer than 670M raw (540M unique). |
C202_137_75 Status - update
[QUOTE=VBCurtis;469444]I think this project is tougher than my 14e/33 effort, so you might need 680-700M raw relations to get a TD 120+ matrix. My job built at TD 140 with 670M raw relations, well below my expectations. I didn't try to build with fewer than 670M raw (540M unique).[/QUOTE]
A few days ago I downloaded the relations set, just over 650M relations at that time. Was just looking to get a datapoint on whether msieve could even build a matrix @TD=70 (with the expectation being no). Started msieve on Monday afternoon with this dataset, thinking I’d see the answer when I woke up. Now three days later and msieve is still chewing. Seems to be stuck on full merge after finding 0-7+ ideals, 2-way merge, then “reduced to 87474860 relation sets and 86454781 unique ideals”, and “26 oversized relation sets”. Presumably it’s low on memory - on a 16 Gb machine. I’ve hit this situation before on a large 15e/32 job. That took over a week to (eventually) build the matrix, along with a ridiculous ETA. So that’s the status. Even if msieve manages to build a viable TD=70 matrix here, it’s fairly worthless other than data on minimum number of relations required for a 14e/33 job. And I’m wondering if I can complete this job - this is using my second best machine and it’s performance is in the mud. My best (32 Gb) machine will free in mid-January once a 15e/33 job is finished. FWIW. I’ll just wait until msieve can get through the full merge step and see if a matrix is built. |
Interesting! My 14/33 job (running on SSD and 16gb) took about 8 hours to complete each instance of -nc1. But I did remdups4 before I tried filtering, which took a couple hours.
As for minimum relations data, I accidentally set a GNFS172 project on 15e/33 rather than the intended 15e/32; it built a TD 104 matrix after just 529M raw relations. This matrix was 9.0M in size, about expected size for GNFS-172. So, if I send a GNFS-173+ to the 14e queue, I'll send it as 33LP to see how the duplicate rate compares to my 15e/33 data point. Edit: I also ran 13*2^864-1 (SNFS 263-ish) as 15e/33. That built a TD 124 matrix after 618M raw relations, size 15.8M. So, your 650M relation data set *might* build a usable TD 120 matrix, though it's likely to be *big*. |
Well, NFS@Home is closing on 698M raw relations for C202_137_75. Sounds like it might be enough to build a TD 120-130 matrix, almost certainly at lower TD. Hopefully we’ll know more in a few days.
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[b]QUEUED[/b] C228_146_66 is ready for SNFS as a 14e/32 job.
[code] n: 403322615866244971015317252029405207385883002450332874986241076661803461639902341122240548701970807294355395451809659292471104327113556821614657457353451021631933889729329464836801059879643933669408128486891525224194947154267597 # 146^66+66^146, difficulty: 245.79, anorm: 1.32e+038, rnorm: -4.58e+046 # scaled difficulty: 247.21, suggest sieving rational side # size = 3.896e-012, alpha = 0.000, combined = 3.223e-013, rroots = 0 type: snfs size: 245 skew: 4.0412 c6: 1 c0: 4356 Y1: -22788959716066127411702810573964669100032 Y0: 313726685568359708377 rlim: 268000000 alim: 268000000 lpbr: 32 lpba: 32 mfbr: 64 mfba: 64 rlambda: 2.8 alambda: 2.8[/code] Test sieving on the -r side with Q in in blocks of 2K[code] Q=20M 6375 Q=80M 3726 Q=150M 3311 Q=250M 2795 Q=300M 2600 [/code] Suggesting a range for Q of 20M-290M with target # rels = 480M. |
[b]QUEUED[/b] C169 from the OPN t600 file.
Sieve on the algebraic side. [CODE]n: 6097289438711591127192360365762092054453165416495578597850906208624110004316023950433701371920699269920504667155602550087593939166837800663343603937040353385051250033689 # 2158316902961^17-1, difficulty: 222.01, skewness: 113.68, alpha: 0.00 # cost: 9.07895e+17, est. time: 432.33 GHz days (not accurate yet!) lss: 0 skew: 113.680 c6: 1 c0: -2158316902961 Y1: -1 Y0: 10054156379241985814632159892175329681 m: 10054156379241985814632159892175329681 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.7 alambda: 2.7 type: snfs[/CODE] Trial sieving 5K blocks. [CODE] Q Yield 20M 9787 60M 7601 100M 7164 140M 6693 180M 5676[/CODE] |
[b]QUEUED[/b] Yoyo@Home recently got a p51 ECM hit on xyyx composite C229_128_87, leaving a C179 stub. Here is the SNFS poly for 14e.
[code] n: 14647401704391583862307253743766974488929088078850910189463365031693758011327875999764099304820640355845120750370808754593361829848559861073833136967005304195920625140036050596033 # 128^87+87^128, difficulty: 252.14, anorm: 3.15e+040, rnorm: 4.75e+046 # scaled difficulty: 253.17, suggest sieving rational side # size = 9.053e-013, alpha = 0.000, combined = 1.153e-013, rroots = 0 type: snfs size: 252 skew: 3.1332 c6: 8 c0: 7569 Y1: 53691347665120761247143202316447077077687 Y0: -2535301200456458802993406410752 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.7 alambda: 2.7 [/code] Test sieving on the rational side with Q in blocks of 2K. [code] Q=20M 3081 Q=80M 1907 Q=150M 1720 Q=250M 1510 Q=300M 1375 [/code] Suggesting a sieving range for Q of 20M-280M for a target # rels = 240M. |
[b]QUEUED[/b] C167 from the OPN t600 file.
Sieve on the algebraic side. [CODE]n: 23327260711114199533184236869267853928958213099573852918831524904354035666636516779708187282668886005285499828361655214369428846201235359235214438370770257933482387771 # 6228362269^23-1, difficulty: 235.06, skewness: 42.89, alpha: 0.00 # cost: 2.59912e+18, est. time: 1237.68 GHz days (not accurate yet!) lss: 0 skew: 42.894 c6: 1 c0: -6228362269 Y1: -1 Y0: 1504857788884562813973901378315425946321 m: 1504857788884562813973901378315425946321 type: snfs rlim: 200000000 alim: 200000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.7 alambda: 2.7[/CODE] Trial sieving 5K blocks. [CODE] Q Yield 20M 9861 60M 6555 100M 7546 150M 6582 200M 6885[/CODE] |
[B]QUEUED (to 15e)[/B] [QUOTE=swellman;468619]C226_127_106 is ready for SNFS. Another possible -r and -a simultaneous sieving job? -[b]NO[/b]
[code] n: 2280139691439976870568969462338718473449233379612063824087464058088350308991326968788088698275254458880939735465798971790789201177419031841268155618018789135288844404141201471594727605279414772263530156097952068024055709191881 # 127^106+106^127, difficulty: 257.21, anorm: 2.62e+039, rnorm: -1.12e+049 # scaled difficulty: 258.82, suggest sieving rational side # size = 1.785e-013, alpha = 1.262, combined = 3.445e-014, rroots = 0 type: snfs size: 257 skew: 10.9350 c6: 1 c0: 1709674 Y1: -3399563600545615415795972563652626094227456 Y0: 73869809188743794269800200736680064769 rlim: 268000000 alim: 268000000 lpbr: 32 lpba: 32 mfbr: 64 mfba: 64 rlambda: 2.8 alambda: 2.8 [/code] If this job is judged to be too much for 14e/32, even if sieved on both sides simultaneously, then 15e/32 appears to work. Test sieving results on the -r side with Q in blocks of 2k. [code] Q=20M rels=4691 Q=80M rels=3465 Q=150M rels=3141 Q=250M rels=2994 Q=350M rels=2549 [/code] Suggesting a sieving range of 20M-350M for Q with a target # of relations=520M.[/QUOTE] This job appears to be too cumbersome for another split 14e/32 job sieved on both sides. Suggest it be enqueued as a straightforward 15e/32 job. |
[b]QUEUED[/b] C229_150_58 is ready for SNFS on 14e.
[code] n: 2278938577267948440576205638759394291619090321721363932624743095904290280575130508313664426833988199618531605192119784698293356275291256402864532690909748774313973256892089290964813190056727674607759428605802289408954085632654453 # 150^58+58^150, difficulty: 248.26, anorm: 3.60e+038, rnorm: 1.00e+047 # scaled difficulty: 249.67, suggest sieving rational side # size = 1.961e-012, alpha = 0.000, combined = 1.976e-013, rroots = 0 type: snfs size: 248 skew: 5.6462 c6: 1 c0: 32400 Y1: -375423431396484375 Y0: 237919412134036023751018299488621739966464 rlim: 134000000 alim: 134000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.7 alambda: 2.7 [/code] Test sieving on the -r side with Q in blocks of 2K [code] Q=20M 3433 Q=80M 2093 Q=150M 1902 Q=250M 1740 [/code] Suggesting a sieving range for Q of 20M-250M with a target # of rels = 245M. |
[b]QUEUED[/b] C192 from OPN t550 file.
Sieve on the algebraic side. [CODE]n: 342111864524063293825336262088484226391971928687135843134784616304200123278308375976499881378750510347809914915426740304278934944109297042523531978229423750026979762755763230118223943547133317 # 1577431459^23-1, difficulty: 220.75, skewness: 34.12, alpha: 0.00 # cost: 8.1842e+17, est. time: 389.72 GHz days (not accurate yet!) lss: 0 skew: 34.119 c6: 1 c0: -1577431459 Y1: -1 Y0: 6191587163130663482001569147410679761 m: 6191587163130663482001569147410679761 type: snfs rlim: 67000000 alim: 67000000 lpbr: 30 lpba: 30 mfbr: 60 mfba: 60 rlambda: 2.6 alambda: 2.6[/CODE] Trial sieving 5K blocks. [CODE] Q Yield 20M 12874 50M 10242 80M 7849 110M 8176[/CODE] |
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