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Message boards : Cullen/Woodall prime search : CW sieve now running faster?

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Darryl
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Credit: 169,673,282
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321 LLR Bronze: Earned 10,000 credits (30,797)Cullen LLR Bronze: Earned 10,000 credits (13,837)ESP LLR Silver: Earned 100,000 credits (140,088)PPS LLR Turquoise: Earned 5,000,000 credits (6,131,665)PSP LLR Gold: Earned 500,000 credits (653,291)SoB LLR Gold: Earned 500,000 credits (538,748)SR5 LLR Silver: Earned 100,000 credits (132,764)SGS LLR Turquoise: Earned 5,000,000 credits (5,001,948)TRP LLR Silver: Earned 100,000 credits (328,227)Woodall LLR Bronze: Earned 10,000 credits (32,680)321 Sieve (suspended) Silver: Earned 100,000 credits (200,659)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (52,021,564)PPS Sieve Emerald: Earned 50,000,000 credits (92,632,081)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,761,921)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,020,224)GFN Turquoise: Earned 5,000,000 credits (5,025,385)
Message 41302 - Posted: 3 Oct 2011 | 21:59:08 UTC

Hi all,

Just a quick note - all the CW sieves i've downloaded since yesterday evening have been completing around 4-5% faster than before. I've changed nothing on my PC in that time (no reboot or graphics driver updates) and the sieves always finish within a fairly narrow window of time so the increase in speed is quite noticeable. I've run this subproject for many weeks now without seeing any change to runtimes in this period, so was wondering if anyone else noticed a similar thing or is it just me? Has there been any code changes at all? Just mildly curious as to how to explain this...

Cheers,
Darryl
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321 LLR Gold: Earned 500,000 credits (519,706)Cullen LLR Gold: Earned 500,000 credits (516,787)ESP LLR Silver: Earned 100,000 credits (242,785)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (149,781)PPS LLR Ruby: Earned 2,000,000 credits (4,596,753)PSP LLR Amethyst: Earned 1,000,000 credits (1,088,102)SoB LLR Silver: Earned 100,000 credits (243,286)SR5 LLR Gold: Earned 500,000 credits (573,605)SGS LLR Gold: Earned 500,000 credits (998,185)TPS LLR (retired) Bronze: Earned 10,000 credits (19,376)TRP LLR Gold: Earned 500,000 credits (775,441)Woodall LLR Silver: Earned 100,000 credits (268,142)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,032)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,584,236)Generalized Cullen/Woodall Sieve Amethyst: Earned 1,000,000 credits (1,245,728)PPS Sieve Emerald: Earned 50,000,000 credits (56,452,797)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (352,129)TRP Sieve (suspended) Gold: Earned 500,000 credits (776,202)AP 26/27 Ruby: Earned 2,000,000 credits (2,014,242)GFN Jade: Earned 10,000,000 credits (10,729,903)PSA Ruby: Earned 2,000,000 credits (4,154,617)
Message 41623 - Posted: 11 Oct 2011 | 0:02:44 UTC

CW Sieve on nVIDIA uses the same basic algorithm as PPS Sieve, so it scans a large number of N's == a large number of bits at a time. But due to the size of the K's used here, it can't jump as far: about 22-24 bits last I recall. As the P's we test against get bigger, so too does the jump size, one bit/N at a time. I'm guessing that's what happened here.

These are rare and getting rarer - getting to each sequential jump size takes about twice as long as the previous one did, minus the small speed increase. PPS Sieve is long past a 32-bit upper limit, so speeds there don't jump like this anymore; but they used to.
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321 LLR Amethyst: Earned 1,000,000 credits (1,468,547)Cullen LLR Amethyst: Earned 1,000,000 credits (1,064,682)ESP LLR Amethyst: Earned 1,000,000 credits (1,020,508)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,202,568)PPS LLR Turquoise: Earned 5,000,000 credits (6,450,509)PSP LLR Amethyst: Earned 1,000,000 credits (1,169,582)SoB LLR Amethyst: Earned 1,000,000 credits (1,026,399)SR5 LLR Amethyst: Earned 1,000,000 credits (1,001,458)SGS LLR Turquoise: Earned 5,000,000 credits (5,937,168)TRP LLR Ruby: Earned 2,000,000 credits (3,433,596)Woodall LLR Amethyst: Earned 1,000,000 credits (1,064,532)321 Sieve (suspended) Bronze: Earned 10,000 credits (54,591)Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (127,922,665)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,110,283)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,277,323,600)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,134,964)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,013,696)AP 26/27 Emerald: Earned 50,000,000 credits (56,367,506)GFN Emerald: Earned 50,000,000 credits (69,925,360)PSA Double Amethyst: Earned 1,000,000,000 credits (1,369,017,486)
Message 44546 - Posted: 8 Dec 2011 | 16:34:12 UTC

Was just wondering if the sieves have changed in size or something. Once again the run times have dropped. I was running them between 171 - 172 seconds and now I can run them between 163 - 164 seconds. That's a pretty big drop in time.
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321 LLR Silver: Earned 100,000 credits (101,692)Cullen LLR Silver: Earned 100,000 credits (104,876)ESP LLR Silver: Earned 100,000 credits (101,979)PPS LLR Silver: Earned 100,000 credits (148,018)PSP LLR Silver: Earned 100,000 credits (140,441)SoB LLR Silver: Earned 100,000 credits (119,475)SR5 LLR Silver: Earned 100,000 credits (120,939)SGS LLR Silver: Earned 100,000 credits (122,783)TRP LLR Silver: Earned 100,000 credits (100,115)Woodall LLR Silver: Earned 100,000 credits (107,459)321 Sieve (suspended) Silver: Earned 100,000 credits (202,757)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,908,135)PPS Sieve Sapphire: Earned 20,000,000 credits (25,450,104)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (130,966)TRP Sieve (suspended) Silver: Earned 100,000 credits (201,525)AP 26/27 Silver: Earned 100,000 credits (100,015)GFN Silver: Earned 100,000 credits (246,369)PSA Silver: Earned 100,000 credits (226,594)
Message 44549 - Posted: 8 Dec 2011 | 17:40:52 UTC - in response to Message 44546.

The app was not changed. Maybe we have reached a higher search range...
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321 LLR Amethyst: Earned 1,000,000 credits (1,016,040)Cullen LLR Gold: Earned 500,000 credits (536,395)ESP LLR Amethyst: Earned 1,000,000 credits (1,165,777)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (165,618)PPS LLR Ruby: Earned 2,000,000 credits (3,472,295)PSP LLR Gold: Earned 500,000 credits (762,278)SoB LLR Gold: Earned 500,000 credits (934,609)SR5 LLR Ruby: Earned 2,000,000 credits (3,122,217)SGS LLR Ruby: Earned 2,000,000 credits (2,262,029)TPS LLR (retired) Silver: Earned 100,000 credits (166,694)TRP LLR Ruby: Earned 2,000,000 credits (3,486,111)Woodall LLR Gold: Earned 500,000 credits (608,773)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,347)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,168,597)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (306,995)PPS Sieve Emerald: Earned 50,000,000 credits (70,649,652)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (716,314)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,256,703)AP 26/27 Ruby: Earned 2,000,000 credits (2,159,635)GFN Turquoise: Earned 5,000,000 credits (7,921,907)PSA Amethyst: Earned 1,000,000 credits (1,096,383)
Message 46307 - Posted: 7 Jan 2012 | 21:51:04 UTC - in response to Message 44549.

Are we still finding factors by sieving? I haven't found a factor in a really long time sieving these 24/7

Darryl
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321 LLR Bronze: Earned 10,000 credits (30,797)Cullen LLR Bronze: Earned 10,000 credits (13,837)ESP LLR Silver: Earned 100,000 credits (140,088)PPS LLR Turquoise: Earned 5,000,000 credits (6,131,665)PSP LLR Gold: Earned 500,000 credits (653,291)SoB LLR Gold: Earned 500,000 credits (538,748)SR5 LLR Silver: Earned 100,000 credits (132,764)SGS LLR Turquoise: Earned 5,000,000 credits (5,001,948)TRP LLR Silver: Earned 100,000 credits (328,227)Woodall LLR Bronze: Earned 10,000 credits (32,680)321 Sieve (suspended) Silver: Earned 100,000 credits (200,659)Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (52,021,564)PPS Sieve Emerald: Earned 50,000,000 credits (92,632,081)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,761,921)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,020,224)GFN Turquoise: Earned 5,000,000 credits (5,025,385)
Message 46350 - Posted: 8 Jan 2012 | 13:54:04 UTC - in response to Message 46307.

Are we still finding factors by sieving? I haven't found a factor in a really long time sieving these 24/7


We are, but not very frequently. In the first week of 2012 i completed 4200 sieves and found 3 factors. I'm guessing the optimal depth is somewhere around 1 factor per week or so - each LLR test for the numbers being seived now would probably take at least 5 or 6 days and would still need double checking (so double that time).

Still, i can't imagine this subproject has many more months left...
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Michael GoetzProject donor
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321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,130,789)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,183,026)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,175,834)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,881,239)GFN Sapphire: Earned 20,000,000 credits (42,505,111)PSA Jade: Earned 10,000,000 credits (10,028,791)
Message 46366 - Posted: 8 Jan 2012 | 17:21:46 UTC - in response to Message 46350.

Are we still finding factors by sieving? I haven't found a factor in a really long time sieving these 24/7


We are, but not very frequently. In the first week of 2012 i completed 4200 sieves and found 3 factors. I'm guessing the optimal depth is somewhere around 1 factor per week or so - each LLR test for the numbers being seived now would probably take at least 5 or 6 days and would still need double checking (so double that time).

Still, i can't imagine this subproject has many more months left...


Except that "the end" is a target that keeps moving...

Don't forget that if you make the sieve faster -- ironically, that extends the lifetime of the sieve rather than shortening it.

Imagine that the next gen GTX 6xx cards come out in a few months and are 25% faster than the 5xx cards. That means that sieving just got 25% more efficient as compared to doing LLR tests on the CPU. Thus, new life gets breathed into the sieving life expectancy.

Conversely, the new gwnum libraries 16 months ago sped up the CPU LLRs by about 10%, and this hastened the end of the PSP/SoB sieving project.

Things seem to work backwards here. Make sieving faster, and rather than getting to the end quicker, you get there slower because the end moves further away.
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321 LLR Bronze: Earned 10,000 credits (11,773)Cullen LLR Bronze: Earned 10,000 credits (14,945)ESP LLR Bronze: Earned 10,000 credits (26,855)PPS LLR Bronze: Earned 10,000 credits (84,876)PSP LLR Bronze: Earned 10,000 credits (15,311)SoB LLR Bronze: Earned 10,000 credits (21,440)SR5 LLR Bronze: Earned 10,000 credits (29,270)SGS LLR Bronze: Earned 10,000 credits (26,616)TPS LLR (retired) Bronze: Earned 10,000 credits (36,288)TRP LLR Bronze: Earned 10,000 credits (41,655)Woodall LLR Bronze: Earned 10,000 credits (15,807)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,014)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (23,405)PPS Sieve Bronze: Earned 10,000 credits (36,192)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,306)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,738)GFN Bronze: Earned 10,000 credits (86,217)PSA Ruby: Earned 2,000,000 credits (2,143,756)
Message 46390 - Posted: 9 Jan 2012 | 5:06:19 UTC - in response to Message 46366.
Last modified: 9 Jan 2012 | 5:49:13 UTC

Conversely, the new gwnum libraries 16 months ago sped up the CPU LLRs by about 10%, and this hastened the end of the PSP/SoB sieving project.

Anyone want an extra 20%-50% increase in LLR speed. ;) If so, stay tuned...

p.s. You might want to get your CW Sieve badge sometime this year...or sooner.
____________

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321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,130,789)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,183,026)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,175,834)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,881,239)GFN Sapphire: Earned 20,000,000 credits (42,505,111)PSA Jade: Earned 10,000,000 credits (10,028,791)
Message 46391 - Posted: 9 Jan 2012 | 5:35:13 UTC - in response to Message 46390.

Conversely, the new gwnum libraries 16 months ago sped up the CPU LLRs by about 10%, and this hastened the end of the PSP/SoB sieving project.

Anyone want an extra 20%-50% increase in LLR speed. ;) If so, stay tuned...

p.s. You might want to get your GCW Sieve badge sometime this year...or sooner.


AVX?
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321 LLR Bronze: Earned 10,000 credits (11,773)Cullen LLR Bronze: Earned 10,000 credits (14,945)ESP LLR Bronze: Earned 10,000 credits (26,855)PPS LLR Bronze: Earned 10,000 credits (84,876)PSP LLR Bronze: Earned 10,000 credits (15,311)SoB LLR Bronze: Earned 10,000 credits (21,440)SR5 LLR Bronze: Earned 10,000 credits (29,270)SGS LLR Bronze: Earned 10,000 credits (26,616)TPS LLR (retired) Bronze: Earned 10,000 credits (36,288)TRP LLR Bronze: Earned 10,000 credits (41,655)Woodall LLR Bronze: Earned 10,000 credits (15,807)321 Sieve (suspended) Bronze: Earned 10,000 credits (20,014)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (23,405)PPS Sieve Bronze: Earned 10,000 credits (36,192)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (20,306)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,738)GFN Bronze: Earned 10,000 credits (86,217)PSA Ruby: Earned 2,000,000 credits (2,143,756)
Message 46394 - Posted: 9 Jan 2012 | 6:32:56 UTC - in response to Message 46391.

Conversely, the new gwnum libraries 16 months ago sped up the CPU LLRs by about 10%, and this hastened the end of the PSP/SoB sieving project.

Anyone want an extra 20%-50% increase in LLR speed. ;) If so, stay tuned...

p.s. You might want to get your GCW Sieve badge sometime this year...or sooner.

AVX?

That is correct. Please see: AVX build of llr (20%-50% faster)
____________

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321 LLR Silver: Earned 100,000 credits (143,713)Cullen LLR Silver: Earned 100,000 credits (138,103)PPS LLR Gold: Earned 500,000 credits (502,784)PSP LLR Silver: Earned 100,000 credits (102,497)SoB LLR Silver: Earned 100,000 credits (190,719)SR5 LLR Bronze: Earned 10,000 credits (70,835)SGS LLR Turquoise: Earned 5,000,000 credits (8,845,251)TRP LLR Ruby: Earned 2,000,000 credits (3,125,636)Woodall LLR Silver: Earned 100,000 credits (148,137)321 Sieve (suspended) Silver: Earned 100,000 credits (116,747)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (44,749,048)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,966,055)PPS Sieve Double Bronze: Earned 100,000,000 credits (115,323,192)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,389,756)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (24,791,259)GFN Amethyst: Earned 1,000,000 credits (1,019,215)PSA Double Silver: Earned 200,000,000 credits (411,000,181)
Message 46403 - Posted: 9 Jan 2012 | 9:37:11 UTC - in response to Message 46366.
Last modified: 9 Jan 2012 | 9:39:09 UTC

Imagine that the next gen GTX 6xx cards come out in a few months and are 25% faster than the 5xx cards. That means that sieving just got 25% more efficient as compared to doing LLR tests on the CPU. Thus, new life gets breathed into the sieving life expectancy.


Michael, I wonder how do you compare a GPU to a CPU? Is it like you compare i7 to GTX580? What about more threads in a CPU?
And how is LLRing compared to sieving? Is there a test sieve that one can understand how deep (say "T" or "P") sieving progresses in an hour, day, week at a specific "n"?

Again, comparing a CPU to a GPU we need to have something in common. Maybe power consumption? How much progress is done on one watt consumed?

Looks tricky to me )))

P.S. Also, if we stop sieving on PPS and Woodall then we should start other sieve projects or cruchers will go to other projects and everyone looses. Even if it's not very effective to sieve it's better sieve than not, because many crunchers don't care about the science behind but care more about the credits and fun.

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321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,130,789)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,183,026)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,175,834)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,881,239)GFN Sapphire: Earned 20,000,000 credits (42,505,111)PSA Jade: Earned 10,000,000 credits (10,028,791)
Message 46409 - Posted: 9 Jan 2012 | 12:24:45 UTC - in response to Message 46403.

Imagine that the next gen GTX 6xx cards come out in a few months and are 25% faster than the 5xx cards. That means that sieving just got 25% more efficient as compared to doing LLR tests on the CPU. Thus, new life gets breathed into the sieving life expectancy.


Michael, I wonder how do you compare a GPU to a CPU? Is it like you compare i7 to GTX580? What about more threads in a CPU?
And how is LLRing compared to sieving? Is there a test sieve that one can understand how deep (say "T" or "P") sieving progresses in an hour, day, week at a specific "n"?

Again, comparing a CPU to a GPU we need to have something in common. Maybe power consumption? How much progress is done on one watt consumed?

Looks tricky to me )))

P.S. Also, if we stop sieving on PPS and Woodall then we should start other sieve projects or cruchers will go to other projects and everyone looses. Even if it's not very effective to sieve it's better sieve than not, because many crunchers don't care about the science behind but care more about the credits and fun.


If "you" is meant to mean me, it's very simple -- I just compare one core of my fastest CPU to my fastest GPU -- neither of which are particularly fast. It's simplistic, but usually what I'm concerned about personally is "how fast can I finish this?" Note that this is different than "how much can I get done?", which is why I only look at a single core.

As for power consumption, I generally only crunch in the winter, so the power heats the house. Efficiency (say, credits vs. watts) is irrelevant when waste heat is useful.

But, if "you" means PrimeGrid, John will have to answer. There's lots of factors that go into the decision. For example, Sieving for GFN at N=4194304 will likely stop just above 9000P. You could do comparisons of CPU Sieving speed vs. GPU PRP speed,, or power consumption analysis, capital depreciation, or whatever. But in that case, it's simply the point where the sieve program will stop working.

____________

Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

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Joined: 17 Dec 09
Posts: 213
ID: 51975
Credit: 339,545,107
RAC: 377
321 LLR Amethyst: Earned 1,000,000 credits (1,029,985)Cullen LLR Gold: Earned 500,000 credits (571,506)ESP LLR Silver: Earned 100,000 credits (185,054)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (194,746)PPS LLR Gold: Earned 500,000 credits (530,935)PSP LLR Ruby: Earned 2,000,000 credits (2,190,174)SoB LLR Ruby: Earned 2,000,000 credits (2,201,813)SR5 LLR Silver: Earned 100,000 credits (292,115)SGS LLR Gold: Earned 500,000 credits (742,845)TRP LLR Gold: Earned 500,000 credits (675,047)Woodall LLR Amethyst: Earned 1,000,000 credits (1,154,682)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,004,255)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (25,001,013)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,713,575)PPS Sieve Emerald: Earned 50,000,000 credits (50,791,251)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (21,004,347)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,080,762)AP 26/27 Silver: Earned 100,000 credits (233,062)GFN Turquoise: Earned 5,000,000 credits (7,348,340)PSA Double Silver: Earned 200,000,000 credits (211,599,598)
Message 46446 - Posted: 9 Jan 2012 | 15:43:11 UTC

So, we need a quick new calculations for CW Sieve project. ;)

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Message boards : Cullen/Woodall prime search : CW sieve now running faster?

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