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Message boards : Project Staging Area : That guy JimB ....

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Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1696
ID: 386066
Credit: 370,671,266
RAC: 83,295
321 LLR Amethyst: Earned 1,000,000 credits (1,009,226)Cullen LLR Amethyst: Earned 1,000,000 credits (1,027,944)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,039,591)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (872,151)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (30,922,283)PPS Sieve Double Bronze: Earned 100,000,000 credits (134,361,318)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,980,939)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 91524 - Posted: 25 Jan 2016 | 13:07:47 UTC

Jim,

A very sincere and heartfelt thanks for being so quick in confirming and assigning pending credit with PPR12M each and every time we return our results!!!

JimBProject donor
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Joined: 4 Aug 11
Posts: 647
ID: 107307
Credit: 452,819,188
RAC: 455,164
321 LLR Ruby: Earned 2,000,000 credits (2,014,631)Cullen LLR Ruby: Earned 2,000,000 credits (2,041,185)ESP LLR Ruby: Earned 2,000,000 credits (2,060,837)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,006,814)PPS LLR Ruby: Earned 2,000,000 credits (2,052,020)PSP LLR Ruby: Earned 2,000,000 credits (3,617,961)SoB LLR Turquoise: Earned 5,000,000 credits (8,423,909)SR5 LLR Turquoise: Earned 5,000,000 credits (6,328,868)SGS LLR Ruby: Earned 2,000,000 credits (2,000,455)TRP LLR Ruby: Earned 2,000,000 credits (2,068,214)Woodall LLR Ruby: Earned 2,000,000 credits (2,082,879)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (6,177,238)PPS Sieve Sapphire: Earned 20,000,000 credits (27,326,793)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Ruby: Earned 2,000,000 credits (2,587,520)GFN Sapphire: Earned 20,000,000 credits (26,012,537)PSA Double Silver: Earned 200,000,000 credits (347,601,926)
Message 91529 - Posted: 25 Jan 2016 | 15:39:15 UTC

You're welcome.

Profile Rick Reynolds
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Posts: 5647
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Credit: 2,946,212,648
RAC: 2,504,629
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 (3,440,186)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 (1,277,906,783)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 (69,929,675)PSA Double Amethyst: Earned 1,000,000,000 credits (1,369,017,486)
Message 91531 - Posted: 25 Jan 2016 | 16:19:47 UTC - in response to Message 91524.

Jim,

A very sincere and heartfelt thanks for being so quick in confirming and assigning pending credit with PPR12M each and every time we return our results!!!


a huge +1 as well.

Just wondering, are you still having to do the check manually or have you automated the process any?

Thanks for getting this whole area moved and working so smoothly!

Cheers Rick

Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 1696
ID: 386066
Credit: 370,671,266
RAC: 83,295
321 LLR Amethyst: Earned 1,000,000 credits (1,009,226)Cullen LLR Amethyst: Earned 1,000,000 credits (1,027,944)ESP LLR Amethyst: Earned 1,000,000 credits (1,092,316)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,039,591)PPS LLR Amethyst: Earned 1,000,000 credits (1,589,174)PSP LLR Amethyst: Earned 1,000,000 credits (1,024,704)SoB LLR Amethyst: Earned 1,000,000 credits (1,011,499)SR5 LLR Amethyst: Earned 1,000,000 credits (1,010,060)SGS LLR Gold: Earned 500,000 credits (872,151)TRP LLR Amethyst: Earned 1,000,000 credits (1,037,468)Woodall LLR Amethyst: Earned 1,000,000 credits (1,040,360)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (30,922,283)PPS Sieve Double Bronze: Earned 100,000,000 credits (134,361,318)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Sapphire: Earned 20,000,000 credits (20,275,645)GFN Sapphire: Earned 20,000,000 credits (21,980,939)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 91534 - Posted: 25 Jan 2016 | 16:46:13 UTC - in response to Message 91531.

Jim,

Do you have access to any stats in relation to GPU and performance (minimum turnaround time)?

I am looking at a custom build and I would like to begin with the GPU and proceed accordingly.

Profile Rafael
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Joined: 22 Oct 14
Posts: 733
ID: 370496
Credit: 166,388,542
RAC: 540,333
321 LLR Ruby: Earned 2,000,000 credits (4,015,911)Cullen LLR Ruby: Earned 2,000,000 credits (2,267,883)ESP LLR Ruby: Earned 2,000,000 credits (2,331,371)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,349,241)PPS LLR Ruby: Earned 2,000,000 credits (2,039,006)PSP LLR Ruby: Earned 2,000,000 credits (2,443,859)SoB LLR Ruby: Earned 2,000,000 credits (2,348,456)SR5 LLR Ruby: Earned 2,000,000 credits (2,297,757)SGS LLR Ruby: Earned 2,000,000 credits (2,897,962)TRP LLR Ruby: Earned 2,000,000 credits (3,023,786)Woodall LLR Ruby: Earned 2,000,000 credits (2,234,383)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,291,694)PPS Sieve Turquoise: Earned 5,000,000 credits (5,201,453)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Ruby: Earned 2,000,000 credits (2,433,886)GFN Sapphire: Earned 20,000,000 credits (21,211,034)PSA Double Bronze: Earned 100,000,000 credits (101,970,647)
Message 91537 - Posted: 25 Jan 2016 | 16:57:20 UTC

Also, I know Michael said it isn't a priority, but is it much of a shore to up the sieving limit on GFN to b=400.000.000?

JimBProject donor
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Joined: 4 Aug 11
Posts: 647
ID: 107307
Credit: 452,819,188
RAC: 455,164
321 LLR Ruby: Earned 2,000,000 credits (2,014,631)Cullen LLR Ruby: Earned 2,000,000 credits (2,041,185)ESP LLR Ruby: Earned 2,000,000 credits (2,060,837)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,006,814)PPS LLR Ruby: Earned 2,000,000 credits (2,052,020)PSP LLR Ruby: Earned 2,000,000 credits (3,617,961)SoB LLR Turquoise: Earned 5,000,000 credits (8,423,909)SR5 LLR Turquoise: Earned 5,000,000 credits (6,328,868)SGS LLR Ruby: Earned 2,000,000 credits (2,000,455)TRP LLR Ruby: Earned 2,000,000 credits (2,068,214)Woodall LLR Ruby: Earned 2,000,000 credits (2,082,879)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (6,177,238)PPS Sieve Sapphire: Earned 20,000,000 credits (27,326,793)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Ruby: Earned 2,000,000 credits (2,587,520)GFN Sapphire: Earned 20,000,000 credits (26,012,537)PSA Double Silver: Earned 200,000,000 credits (347,601,926)
Message 91564 - Posted: 25 Jan 2016 | 23:36:08 UTC - in response to Message 91531.

Just wondering, are you still having to do the check manually or have you automated the process any?

The procedure hasn't changed. I download the factor files via an SSH connection to my computer. I run one program that sorts each factor file, removes duplicates and checks every factor for validity. I run a second program that makes sure the sieving data matches the filename, makes sure the start and end are close to where they should be and checks for gaps in the sieving. That same program also looks for too many +1 or -1 factors in a row, such as would happen if the sieving was started with the wrong parameters. It also picks out the higher and lowest k values and highest and lowest n values found. We're getting to the point on PPR12M where on 1T reservations sometimes the lowest k is not 3 or highest is not 9999. Every p, k, n and c value is tested to make sure it's within the proper range. Both programs are extremely fast with factor files the size we see today. Even a 10T file doesn't take more than a second.

So that's two command lines that each run on all files I've downloaded. It's the same if I have one file or 100. I then run another one that puts those files into their permanent location and also copies them to my local server. I run a similar program on the server which does the same tests but also stores the results in a database table. I then run one more program that generates the sieving data table and copies it up to the primegrid server. Before granting credit, I look at that table to make sure the factor density matches adjacent ranges. It takes a lot more to type out the procedure than it does to do it.

I didn't used to check the factor density until there were some problems that I noticed afterwards. I'd much rather address the problem with a sieve range before I grant credit on it.

GFN checking is similar except that I have to run the same program once for each n value represented in the uploads. So if it's only 65536 that's one run, but 65536 and 4194304 together are two runs.

JimBProject donor
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Joined: 4 Aug 11
Posts: 647
ID: 107307
Credit: 452,819,188
RAC: 455,164
321 LLR Ruby: Earned 2,000,000 credits (2,014,631)Cullen LLR Ruby: Earned 2,000,000 credits (2,041,185)ESP LLR Ruby: Earned 2,000,000 credits (2,060,837)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,006,814)PPS LLR Ruby: Earned 2,000,000 credits (2,052,020)PSP LLR Ruby: Earned 2,000,000 credits (3,617,961)SoB LLR Turquoise: Earned 5,000,000 credits (8,423,909)SR5 LLR Turquoise: Earned 5,000,000 credits (6,328,868)SGS LLR Ruby: Earned 2,000,000 credits (2,000,455)TRP LLR Ruby: Earned 2,000,000 credits (2,068,214)Woodall LLR Ruby: Earned 2,000,000 credits (2,082,879)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (6,177,238)PPS Sieve Sapphire: Earned 20,000,000 credits (27,326,793)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Ruby: Earned 2,000,000 credits (2,587,520)GFN Sapphire: Earned 20,000,000 credits (26,012,537)PSA Double Silver: Earned 200,000,000 credits (347,601,926)
Message 91566 - Posted: 25 Jan 2016 | 23:37:03 UTC - in response to Message 91534.

Jim,

Do you have access to any stats in relation to GPU and performance (minimum turnaround time)?

I am looking at a custom build and I would like to begin with the GPU and proceed accordingly.

I don't record (or even want to know) which hardware is doing the sieving, sorry.

JimBProject donor
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Joined: 4 Aug 11
Posts: 647
ID: 107307
Credit: 452,819,188
RAC: 455,164
321 LLR Ruby: Earned 2,000,000 credits (2,014,631)Cullen LLR Ruby: Earned 2,000,000 credits (2,041,185)ESP LLR Ruby: Earned 2,000,000 credits (2,060,837)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,006,814)PPS LLR Ruby: Earned 2,000,000 credits (2,052,020)PSP LLR Ruby: Earned 2,000,000 credits (3,617,961)SoB LLR Turquoise: Earned 5,000,000 credits (8,423,909)SR5 LLR Turquoise: Earned 5,000,000 credits (6,328,868)SGS LLR Ruby: Earned 2,000,000 credits (2,000,455)TRP LLR Ruby: Earned 2,000,000 credits (2,068,214)Woodall LLR Ruby: Earned 2,000,000 credits (2,082,879)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (6,177,238)PPS Sieve Sapphire: Earned 20,000,000 credits (27,326,793)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Ruby: Earned 2,000,000 credits (2,587,520)GFN Sapphire: Earned 20,000,000 credits (26,012,537)PSA Double Silver: Earned 200,000,000 credits (347,601,926)
Message 91567 - Posted: 25 Jan 2016 | 23:37:44 UTC - in response to Message 91537.

Also, I know Michael said it isn't a priority, but is it much of a shore to up the sieving limit on GFN to b=400.000.000?

We're discussing it internally.

Profile Rafael
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Posts: 733
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Credit: 166,388,542
RAC: 540,333
321 LLR Ruby: Earned 2,000,000 credits (4,015,911)Cullen LLR Ruby: Earned 2,000,000 credits (2,267,883)ESP LLR Ruby: Earned 2,000,000 credits (2,331,371)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,349,241)PPS LLR Ruby: Earned 2,000,000 credits (2,039,006)PSP LLR Ruby: Earned 2,000,000 credits (2,443,859)SoB LLR Ruby: Earned 2,000,000 credits (2,348,456)SR5 LLR Ruby: Earned 2,000,000 credits (2,297,757)SGS LLR Ruby: Earned 2,000,000 credits (2,897,962)TRP LLR Ruby: Earned 2,000,000 credits (3,023,786)Woodall LLR Ruby: Earned 2,000,000 credits (2,234,383)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,291,694)PPS Sieve Turquoise: Earned 5,000,000 credits (5,201,453)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Ruby: Earned 2,000,000 credits (2,433,886)GFN Sapphire: Earned 20,000,000 credits (21,211,034)PSA Double Bronze: Earned 100,000,000 credits (101,970,647)
Message 91569 - Posted: 26 Jan 2016 | 0:02:15 UTC - in response to Message 91567.

Also, I know Michael said it isn't a priority, but is it much of a shore to up the sieving limit on GFN to b=400.000.000?

We're discussing it internally.

I was actually asking that purely from a coding perspective.

JimBProject donor
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Joined: 4 Aug 11
Posts: 647
ID: 107307
Credit: 452,819,188
RAC: 455,164
321 LLR Ruby: Earned 2,000,000 credits (2,014,631)Cullen LLR Ruby: Earned 2,000,000 credits (2,041,185)ESP LLR Ruby: Earned 2,000,000 credits (2,060,837)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,006,814)PPS LLR Ruby: Earned 2,000,000 credits (2,052,020)PSP LLR Ruby: Earned 2,000,000 credits (3,617,961)SoB LLR Turquoise: Earned 5,000,000 credits (8,423,909)SR5 LLR Turquoise: Earned 5,000,000 credits (6,328,868)SGS LLR Ruby: Earned 2,000,000 credits (2,000,455)TRP LLR Ruby: Earned 2,000,000 credits (2,068,214)Woodall LLR Ruby: Earned 2,000,000 credits (2,082,879)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (6,177,238)PPS Sieve Sapphire: Earned 20,000,000 credits (27,326,793)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Ruby: Earned 2,000,000 credits (2,587,520)GFN Sapphire: Earned 20,000,000 credits (26,012,537)PSA Double Silver: Earned 200,000,000 credits (347,601,926)
Message 91571 - Posted: 26 Jan 2016 | 2:16:09 UTC - in response to Message 91569.

I'm not the author of any of that code. I believe a simple change would make the GFNSvCUDA report factors for up to b=400M, but I'm not certain. The only n's it could possibly apply to are 15 and 16. We won't ever get high enough in the others. Even for n=15 we're talking about a few years before we run out of candidates. We're not currently sieving n=15 and given that it's only sieved to 1100P it wouldn't take long to redo for b=0-400M.

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321 LLR Ruby: Earned 2,000,000 credits (2,053,472)Cullen LLR Amethyst: Earned 1,000,000 credits (1,517,774)ESP LLR Ruby: Earned 2,000,000 credits (2,024,904)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,066,345)PPS LLR Ruby: Earned 2,000,000 credits (2,503,696)PSP LLR Turquoise: Earned 5,000,000 credits (5,079,477)SoB LLR Ruby: Earned 2,000,000 credits (3,303,321)SR5 LLR Ruby: Earned 2,000,000 credits (2,003,315)SGS LLR Ruby: Earned 2,000,000 credits (2,004,273)TRP LLR Ruby: Earned 2,000,000 credits (2,016,559)Woodall LLR Ruby: Earned 2,000,000 credits (2,386,993)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,647,915)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,526,356)PPS Sieve Emerald: Earned 50,000,000 credits (98,794,128)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,038)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,803,337)AP 26/27 Jade: Earned 10,000,000 credits (10,119,629)GFN Sapphire: Earned 20,000,000 credits (34,474,159)PSA Double Silver: Earned 200,000,000 credits (309,735,454)
Message 91572 - Posted: 26 Jan 2016 | 2:32:27 UTC - in response to Message 91571.

I'm not the author of any of that code. I believe a simple change would make the GFNSvCUDA report factors for up to b=400M, but I'm not certain. The only n's it could possibly apply to are 15 and 16. We won't ever get high enough in the others. Even for n=15 we're talking about a few years before we run out of candidates. We're not currently sieving n=15 and given that it's only sieved to 1100P it wouldn't take long to redo for b=0-400M.


Would it even be necessary to redo anything? Couldn't you just add in sieve entries 100 - 400M, and then start sieving from the current P for b = 0-400M? It would seen a waste to redo anything since factors are usually found multiple times during sieving.

JimBProject donor
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Joined: 4 Aug 11
Posts: 647
ID: 107307
Credit: 452,819,188
RAC: 455,164
321 LLR Ruby: Earned 2,000,000 credits (2,014,631)Cullen LLR Ruby: Earned 2,000,000 credits (2,041,185)ESP LLR Ruby: Earned 2,000,000 credits (2,060,837)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,006,814)PPS LLR Ruby: Earned 2,000,000 credits (2,052,020)PSP LLR Ruby: Earned 2,000,000 credits (3,617,961)SoB LLR Turquoise: Earned 5,000,000 credits (8,423,909)SR5 LLR Turquoise: Earned 5,000,000 credits (6,328,868)SGS LLR Ruby: Earned 2,000,000 credits (2,000,455)TRP LLR Ruby: Earned 2,000,000 credits (2,068,214)Woodall LLR Ruby: Earned 2,000,000 credits (2,082,879)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (6,177,238)PPS Sieve Sapphire: Earned 20,000,000 credits (27,326,793)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Ruby: Earned 2,000,000 credits (2,587,520)GFN Sapphire: Earned 20,000,000 credits (26,012,537)PSA Double Silver: Earned 200,000,000 credits (347,601,926)
Message 91949 - Posted: 7 Feb 2016 | 21:51:58 UTC - in response to Message 91572.

Would it even be necessary to redo anything? Couldn't you just add in sieve entries 100 - 400M, and then start sieving from the current P for b = 0-400M? It would seen a waste to redo anything since factors are usually found multiple times during sieving.

The factor density at the beginning of sieving is very very high. Have a look at http://www.primegrid.com/sieving/gfn and see just how high. Sieving would have to be redone starting at p=0. In fact between p=0-1P the GPU programs can't be used. I'll have to check the older Windows code from David Underbakke to make sure his b limits go that high.

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321 LLR Turquoise: Earned 5,000,000 credits (7,428,581)Cullen LLR Turquoise: Earned 5,000,000 credits (6,655,866)ESP LLR Turquoise: Earned 5,000,000 credits (7,800,746)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,104,791)PPS LLR Turquoise: Earned 5,000,000 credits (9,014,865)PSP LLR Jade: Earned 10,000,000 credits (10,891,779)SoB LLR Jade: Earned 10,000,000 credits (10,261,655)SR5 LLR Turquoise: Earned 5,000,000 credits (7,096,480)SGS LLR Turquoise: Earned 5,000,000 credits (7,403,813)TRP LLR Turquoise: Earned 5,000,000 credits (7,714,186)Woodall LLR Turquoise: Earned 5,000,000 credits (5,726,778)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,094,130)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (10,139,500)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,009,643,243)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,235,150)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,376,844)AP 26/27 Jade: Earned 10,000,000 credits (10,467,327)GFN Double Silver: Earned 200,000,000 credits (412,087,020)PSA Double Bronze: Earned 100,000,000 credits (103,206,213)
Message 91958 - Posted: 8 Feb 2016 | 2:59:52 UTC

And back to:
Thank you for everything you've done.

And now back to our regularly scheduled program:
Another big thanks for answering even more questions in a "Thank You" thread. LOL


____________
"Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."

-Benjamin Franklin

GDB
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Message 91959 - Posted: 8 Feb 2016 | 6:21:57 UTC - in response to Message 91949.

Would it even be necessary to redo anything? Couldn't you just add in sieve entries 100 - 400M, and then start sieving from the current P for b = 0-400M? It would seen a waste to redo anything since factors are usually found multiple times during sieving.

The factor density at the beginning of sieving is very very high. Have a look at http://www.primegrid.com/sieving/gfn and see just how high. Sieving would have to be redone starting at p=0. In fact between p=0-1P the GPU programs can't be used. I'll have to check the older Windows code from David Underbakke to make sure his b limits go that high.


OK, so you might redo 0-1P. But to redo everything seems such a waste. Currently, we're almost at 12% of the optimal sieving range. That means we still have 7 times as much work remaining to do. Since each factor is likely to be found multiple times over the sieving range, it just seems a lot of rerun work to eliminate a few factors that MIGHT not be eliminated in the remaining 88% work to do.

Current GPU work is low in the OCL/OLC3 range. Any sieving we do is better focused on NEW sieving ranges to eliminate new OCL/OCL3/OCL2 factors than to redo everything, and find ZERO new OCL/OCL3/OCL2 factors.

JimBProject donor
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Message 91963 - Posted: 8 Feb 2016 | 9:19:00 UTC - in response to Message 91959.
Last modified: 8 Feb 2016 | 9:27:43 UTC

OK, so you might redo 0-1P. But to redo everything seems such a waste. Currently, we're almost at 12% of the optimal sieving range. That means we still have 7 times as much work remaining to do. Since each factor is likely to be found multiple times over the sieving range, it just seems a lot of rerun work to eliminate a few factors that MIGHT not be eliminated in the remaining 88% work to do.

Current GPU work is low in the OCL/OLC3 range. Any sieving we do is better focused on NEW sieving ranges to eliminate new OCL/OCL3/OCL2 factors than to redo everything, and find ZERO new OCL/OCL3/OCL2 factors.

You're kidding, right? We're talking about sieving up to a higher b-limit rather than stopping at b=100M like now. A quicy-and-dirty calculation suggests that resieving 0-1100P to b=1G will result in 388 million additional candidates being sieved out. That's because there will be ten times the potential candidates that there are now. Candidates that were not found the first time because anything over 100M was not reported. Candidates that we'll start primality-testing within two years.

Look at the graph here and think about it going from b=100,000,000 in height (which it is now) to ten times that high or b=1,000,000,000. That's where the additional candidates come from. So we stand to discover 9x (1G - 100M = 900M) as many new factors for any sieving range. In fact we might as well sieve to the limit of the program, which is 2^32-2 or 4,294,967,294. It'll take exactly the same time as sieving to 100M did, the factor files will just be that much larger. The sieve files will also be larger, but that's something that only exists on my computer. A 5GB sieve file (uncompressed) is not all that large. I have 500GB+ of various generations of PPS/RSP sieves here for n=0-12M, with two full backups on other computers.

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Message 91964 - Posted: 8 Feb 2016 | 12:34:11 UTC - in response to Message 91963.

OK, so you might redo 0-1P. But to redo everything seems such a waste. Currently, we're almost at 12% of the optimal sieving range. That means we still have 7 times as much work remaining to do. Since each factor is likely to be found multiple times over the sieving range, it just seems a lot of rerun work to eliminate a few factors that MIGHT not be eliminated in the remaining 88% work to do.

Current GPU work is low in the OCL/OLC3 range. Any sieving we do is better focused on NEW sieving ranges to eliminate new OCL/OCL3/OCL2 factors than to redo everything, and find ZERO new OCL/OCL3/OCL2 factors.

You're kidding, right? We're talking about sieving up to a higher b-limit rather than stopping at b=100M like now. A quicy-and-dirty calculation suggests that resieving 0-1100P to b=1G will result in 388 million additional candidates being sieved out. That's because there will be ten times the potential candidates that there are now. Candidates that were not found the first time because anything over 100M was not reported. Candidates that we'll start primality-testing within two years.

Look at the graph here and think about it going from b=100,000,000 in height (which it is now) to ten times that high or b=1,000,000,000. That's where the additional candidates come from. So we stand to discover 9x (1G - 100M = 900M) as many new factors for any sieving range. In fact we might as well sieve to the limit of the program, which is 2^32-2 or 4,294,967,294. It'll take exactly the same time as sieving to 100M did, the factor files will just be that much larger. The sieve files will also be larger, but that's something that only exists on my computer. A 5GB sieve file (uncompressed) is not all that large. I have 500GB+ of various generations of PPS/RSP sieves here for n=0-12M, with two full backups on other computers.


I was just talking about the redoing of n=22. I don't see us get to testing 100M+ n=22 candidates for over 10+ years. Unless we're going to skip a lot of them to get to WR territory. My question is: How many additional 100M+ factors are you going to find sieving 0-1Z vs. 120,000P-1Z? And if we find it necessary to redo 0-120,000P, wouldn't it be better to continue now from 120,000P-1Z, and then redo 0-120,000P? Any OCL/OCL3/OCL2 factors we find now doing 120,000P-1Z is of IMMEDIATE benefit. While any additional 100M+ factors we find sieving 0-120,000P is of FUTURE (10+ years) benefit?

JimBProject donor
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Message 91972 - Posted: 8 Feb 2016 | 16:08:09 UTC - in response to Message 91964.

We're not talking about redoing n=22. We're talking about redoing n=15.

GDB
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321 LLR Ruby: Earned 2,000,000 credits (2,053,472)Cullen LLR Amethyst: Earned 1,000,000 credits (1,517,774)ESP LLR Ruby: Earned 2,000,000 credits (2,024,904)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,066,345)PPS LLR Ruby: Earned 2,000,000 credits (2,503,696)PSP LLR Turquoise: Earned 5,000,000 credits (5,079,477)SoB LLR Ruby: Earned 2,000,000 credits (3,303,321)SR5 LLR Ruby: Earned 2,000,000 credits (2,003,315)SGS LLR Ruby: Earned 2,000,000 credits (2,004,273)TRP LLR Ruby: Earned 2,000,000 credits (2,016,559)Woodall LLR Ruby: Earned 2,000,000 credits (2,386,993)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,647,915)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,526,356)PPS Sieve Emerald: Earned 50,000,000 credits (98,794,128)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,038)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,803,337)AP 26/27 Jade: Earned 10,000,000 credits (10,119,629)GFN Sapphire: Earned 20,000,000 credits (34,474,159)PSA Double Silver: Earned 200,000,000 credits (309,735,454)
Message 91986 - Posted: 9 Feb 2016 | 5:18:12 UTC - in response to Message 91972.

We're not talking about redoing n=22. We're talking about redoing n=15.


Thanks! Never mind.

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