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R.D. Silverman 2019-11-09 01:22

[QUOTE=jyb;530067][B]QUEUED AS 9p8_308[/B]

Wow, there seems to be a surge of activity on the queues. Anyone know why?

SNFS-251.92 C217 HCN (9+8,308), ECM to t55. For 14e.
[code]
n: 1011066397196212826464164521783438912271908925959739134277425479471368133367797326158505023644700822558279986670511556505523599625146380271489729182304591357198196305077595784461303504854399221824061156472884420764449
# 9^308+8^308, difficulty: 251.92, skewness: 1.00, alpha: 2.24
skew: 1.000
c6: 1
c5: -1
c4: 1
c3: -1
c2: 1
c1: -1
c0: 1
Y1: -5444517870735015415413993718908291383296
Y0: 969773729787523602876821942164080815560161
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 93
mfba: 62
rlambda: 3.6
alambda: 2.6
[/code]
Trial sieving 2K blocks.
[code]
Q Yield
--- -----
20M 4353
60M 2996
100M 2562
140M 2008
180M 1786
220M 1885
260M 1931
300M 1670
[/code]
Recommend sieving special Q on rational side, 20M - 230M.[/QUOTE]

A [b]guess[/b]:

2,1084+ seems to be nearing completion. Perhaps machines that had been working
on it have switched over to 14e and 15f before the next large one starts up??

swellman 2019-11-09 01:35

There’s also [url= https://www.mersenneforum.org/showthread.php?t=22437&page=5]this[/url] where Carlos calls for work to be added to 16e. This seems to gel with Bob’s observation.

Regardless I say enjoy it while it lasts!

jyb 2019-11-09 07:22

[B]QUEUED AS 9p2_526L[/B]

SNFS-252.22 C211 HCN (9+2,526L), ECM to t55. For 14e.
[code]
n: 2862405985839249992864638786796591267731903814772936815145715155629809347291002103739094665175790790188633215426432211769927192695318099412501354570581845795585345382078360792475450875794434267424461225068381877
skew: 1.284898
c6: 2
c3: -6
c0: 9
Y1: 17592186044416
Y0: -969773729787523602876821942164080815560161
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 93
mfba: 62
rlambda: 3.6
alambda: 2.6
[/code]
Trial sieving 2K blocks.
[code]
Q Yield
--- -----
20M 4622
60M 2998
100M 2662
140M 2145
180M 1748
220M 1796
260M 1945
300M 1588
[/code]
Recommend sieving special Q on rational side, 20M - 230M.

RichD 2019-11-09 18:12

[B]QUEUED AS 137__493_5m1[/B]

C182 from the OPN t800 file.
[CODE][ a.k.a. Phi_5(Phi_3(Phi_7(Phi_2(Phi_3(Phi_13(31)/42407/7908811))/3/13/31/2647/6228362269)/p28)/3/151/7057)/211/281/1091/11785661 ][/CODE]
P50^5-1
[CODE]n: 46632623738981767397580964656930474343860281279669741592436553838373411668178336559698082305210493458976623137050829617941463113585747006170889454715811548766152228608627570699753761
# 13731384572277870262862115052207190895929696457493^5-1, difficulty: 196.55, skewness: 1.00, alpha: 1.45
# cost: 1.04269e+17, est. time: 49.65 GHz days (not accurate yet!)
skew: 1.000
c4: 1
c3: 1
c2: 1
c1: 1
c0: 1
Y1: -1
Y0: 13731384572277870262862115052207190895929696457493
type: snfs
rlim: 16700000
alim: 16700000
lpbr: 29
lpba: 29
mfbr: 57
mfba: 57
rlambda: 2.5
alambda: 2.5[/CODE]
Trial sieving 5K blocks.
[CODE] Q Yield
[B]10M [/B]20180
20M 23048
26M 22245[/CODE]

VBCurtis 2019-11-10 19:46

[B]QUEUED AS 13_2_892m[/B]

13_2_892m is ready for the 15e queue. Thanks for PhilF for ~1.8t55 ecm work!
[code]n: 18506805396968135611155184891404406020831889021055758328923431924399638720432241766053234118351869077918037177534464815730861966812520562472496745230825092848732924799837750268894252467544668175171
skew: 1.067
type: snfs
c0: -4
c6: 13
Y0: -713623846352979940529142984724747568191373312
Y1: 1
lpbr: 32
lpba: 33
mfbr: 90
mfba: 64
alambda: 2.7
rlambda: 3.7
alim: 134000000
rlim: 100000000[/code]
Skew was chosen by cownoise, rather than math; the 6th root of 4/13 is 0.822, which is the skew I used for test-sieving (before thinking to try cownoise for skew just this morning).
Q from 10-240M is sufficient for ~590M raw relations on this 32/33 hybrid:
[code]q-ranges of 500 were tested, on -r side
#Q=20M 2730 rels, 0.134 sec/rel
#Q=40M 1772 rels, 0.173 sec/rel
#Q=60M 1664 rels, 0.189 sec/rel
#Q=100M 1390 rels, 0.218 sec/rel
#Q=120M 1352 rels, 0.230 sec/rel
#Q=140M 1413 rels, 0.234 sec/rel
#Q=160M 1194 rels, 0.259 sec/rel
#Q=180M 827 rels, 0.249 sec/rel
#Q=200M 1379 rels, 0.254 sec/rel
#Q=220M 793 rels, 0.304 sec/rel
#Q=240M 995 rels, 0.282 sec/rel[/code]
I'd like to handle the matrix.

R.D. Silverman 2019-11-10 20:49

[QUOTE=R.D. Silverman;530070]A [b]guess[/b]:

2,1084+ seems to be nearing completion. Perhaps machines that had been working
on it have switched over to 14e and 15f before the next large one starts up??[/QUOTE]

2,1084+ seems to have "ramped up" again. I suspect that there was a hiccup
of some kind in the server with respect to the 16e queue.

VBCurtis 2019-11-11 05:51

[QUOTE=VBCurtis;530221]
Q from 10-240M is sufficient for ~590M raw relations on this 32/33 hybrid:
[code]q-ranges of 500 were tested, on -r side
#Q=20M 2730 rels, 0.134 sec/rel
#Q=40M 1772 rels, 0.173 sec/rel
#Q=60M 1664 rels, 0.189 sec/rel
#Q=100M 1390 rels, 0.218 sec/rel
#Q=120M 1352 rels, 0.230 sec/rel
#Q=140M 1413 rels, 0.234 sec/rel
#Q=160M 1194 rels, 0.259 sec/rel
#Q=180M 827 rels, 0.249 sec/rel
#Q=200M 1379 rels, 0.254 sec/rel
#Q=220M 793 rels, 0.304 sec/rel
#Q=240M 995 rels, 0.282 sec/rel[/code]
I'd like to handle the matrix.[/QUOTE]
Looks like I somehow skipped Q=80M, so my estimate of Q-range is 20M too high. If it's possible to edit the job in the queue, Q to 220M should be sufficient!

pinhodecarlos 2019-11-11 07:19

[QUOTE=R.D. Silverman;530230]2,1084+ seems to have "ramped up" again. I suspect that there was a hiccup
of some kind in the server with respect to the 16e queue.[/QUOTE]

The server dried a few days ago but Greg in the meantime extended the sieve range for it.

RichD 2019-11-13 15:44

[QUOTE=RichD;530123][B]QUEUED AS 137__493_5m1[/B]

C182 from the OPN t800 file.[/QUOTE]

I wonder why the yield on this number is half from my testing. I just realized I used 15e during test sieving. I should have realized something was up because the relations came so quickly for this size number. Probably need to go to at least Q=40M, or more.

[B]Someone kicked Q up to 40M, but I’ve kicked it again to 45M.[/B]

RichD 2019-11-14 19:54

[B]QUEUED AS 48873043253_19m1[/B]

C182 from the OPN file t800.
This polynomial is subject to a higher dup rate.
Sieve on the algebraic side.
[CODE]n: 21032086980121377679363755274291979093380197167530330355863708508619912381349488259039892515286976890302601959284324429264573109070491968253271193557575850712811682664940728122357621
# 48873043253^19-1, difficulty: 203.09, skewness: 0.02, alpha: 0.00
# cost: 1.84607e+17, est. time: 87.91 GHz days (not accurate yet!)
lss: 0
skew: 0.017
c6: 48873043253
c0: -1
Y1: -1
Y0: 116736897853362667044056235355277
type: snfs
rlim: 33500000
alim: 33500000
lpbr: 30
lpba: 30
mfbr: 60
mfba: 60
rlambda: 2.6
alambda: 2.6[/CODE]
Trial sieving 5K blocks.
[CODE] Q Yield
[B]10M[/B] 19058
20M 13849
50M 10687
72M 11550[/CODE]

jyb 2019-11-14 20:35

[B]QUEUED AS 9p2_526M[/B]

SNFS-252.22 C242 HCN (9+2,526M), ECM to t55. For 14e.
[code]
n: 12032116844014122594098682378309047955871124201346307891284003101533550125444507074466786347940812165499085947935912518083732859221730926558921343364999169270804586923287214952868221464381212455977361039742570328400227549615531761466645375297
skew: 1.284898
c6: 2
c3: 6
c0: 9
Y1: 17592186044416
Y0: -969773729787523602876821942164080815560161
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 93
mfba: 62
rlambda: 3.6
alambda: 2.6
[/code]
Trial sieving 2K blocks.
[code]
Q Yield
--- -----
20M 4475
60M 3072
100M 2589
140M 2092
180M 1796
220M 1869
260M 1933
300M 1740
[/code]
Recommend sieving special Q on rational side, 20M - 230M.


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