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Message boards : Cullen/Woodall prime search : Future CW-sieve.

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Chara34122
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Joined: 11 Feb 17
Posts: 83
ID: 490242
Credit: 14,964,025
RAC: 16,878
321 LLR Silver: Earned 100,000 credits (258,442)Cullen LLR Silver: Earned 100,000 credits (181,773)ESP LLR Silver: Earned 100,000 credits (239,556)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (199,718)PPS LLR Silver: Earned 100,000 credits (359,729)PSP LLR Silver: Earned 100,000 credits (321,756)SoB LLR Turquoise: Earned 5,000,000 credits (6,038,944)SR5 LLR Silver: Earned 100,000 credits (167,962)SGS LLR Silver: Earned 100,000 credits (388,159)TRP LLR Silver: Earned 100,000 credits (491,086)Woodall LLR Silver: Earned 100,000 credits (141,518)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,952,453)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,299)PPS Sieve Silver: Earned 100,000 credits (114,614)AP 26/27 Silver: Earned 100,000 credits (202,150)GFN Silver: Earned 100,000 credits (388,301)WW Silver: Earned 100,000 credits (220,000)PSA Silver: Earned 100,000 credits (292,160)
Message 150883 - Posted: 20 Jul 2021 | 20:15:20 UTC

It was mentioned on PG that CW-cieve has only NVidia support. Will it be so in the future? Better to already know it.

ReggieProject donor
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Joined: 10 May 14
Posts: 204
ID: 311759
Credit: 179,895,339
RAC: 45,168
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,046,192)Cullen LLR Ruby: Earned 2,000,000 credits (2,026,465)ESP LLR Ruby: Earned 2,000,000 credits (2,053,710)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,011,992)PPS LLR Ruby: Earned 2,000,000 credits (3,769,974)PSP LLR Amethyst: Earned 1,000,000 credits (1,587,883)SoB LLR Ruby: Earned 2,000,000 credits (2,305,993)SR5 LLR Ruby: Earned 2,000,000 credits (2,023,467)SGS LLR Ruby: Earned 2,000,000 credits (2,682,790)TRP LLR Amethyst: Earned 1,000,000 credits (1,121,859)Woodall LLR Amethyst: Earned 1,000,000 credits (1,686,633)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,211)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,420)PPS Sieve Sapphire: Earned 20,000,000 credits (22,440,747)AP 26/27 Sapphire: Earned 20,000,000 credits (20,077,538)GFN Sapphire: Earned 20,000,000 credits (41,816,292)WW Emerald: Earned 50,000,000 credits (50,172,000)PSA Sapphire: Earned 20,000,000 credits (20,070,245)
Message 150889 - Posted: 21 Jul 2021 | 0:08:52 UTC - in response to Message 150883.

Chances are strong that we'll use a new app that is not Nvidia specific. Not set in stone at this point, as it requires a lot of effort from a few people to get CW-Sieve up again.

Chara34122
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Joined: 11 Feb 17
Posts: 83
ID: 490242
Credit: 14,964,025
RAC: 16,878
321 LLR Silver: Earned 100,000 credits (258,442)Cullen LLR Silver: Earned 100,000 credits (181,773)ESP LLR Silver: Earned 100,000 credits (239,556)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (199,718)PPS LLR Silver: Earned 100,000 credits (359,729)PSP LLR Silver: Earned 100,000 credits (321,756)SoB LLR Turquoise: Earned 5,000,000 credits (6,038,944)SR5 LLR Silver: Earned 100,000 credits (167,962)SGS LLR Silver: Earned 100,000 credits (388,159)TRP LLR Silver: Earned 100,000 credits (491,086)Woodall LLR Silver: Earned 100,000 credits (141,518)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,952,453)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,299)PPS Sieve Silver: Earned 100,000 credits (114,614)AP 26/27 Silver: Earned 100,000 credits (202,150)GFN Silver: Earned 100,000 credits (388,301)WW Silver: Earned 100,000 credits (220,000)PSA Silver: Earned 100,000 credits (292,160)
Message 150921 - Posted: 22 Jul 2021 | 20:38:19 UTC - in response to Message 150889.

Thanks!
____________

GregCinAZProject donor
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Joined: 12 Nov 18
Posts: 39
ID: 1077873
Credit: 666,905,917
RAC: 1,555,503
321 LLR Jade: Earned 10,000,000 credits (10,035,684)Cullen LLR Turquoise: Earned 5,000,000 credits (5,466,134)ESP LLR Turquoise: Earned 5,000,000 credits (6,115,124)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (7,011,493)PPS LLR Turquoise: Earned 5,000,000 credits (7,100,609)PSP LLR Turquoise: Earned 5,000,000 credits (7,150,297)SoB LLR Jade: Earned 10,000,000 credits (11,378,229)SR5 LLR Turquoise: Earned 5,000,000 credits (6,029,778)SGS LLR Turquoise: Earned 5,000,000 credits (5,189,121)TRP LLR Turquoise: Earned 5,000,000 credits (5,774,928)Woodall LLR Turquoise: Earned 5,000,000 credits (5,283,659)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,106,689)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,038,005)PPS Sieve Double Silver: Earned 200,000,000 credits (225,583,949)AP 26/27 Emerald: Earned 50,000,000 credits (50,201,931)GFN Emerald: Earned 50,000,000 credits (75,503,543)WW Double Silver: Earned 200,000,000 credits (200,416,000)PSA Jade: Earned 10,000,000 credits (16,520,746)
Message 150924 - Posted: 22 Jul 2021 | 21:28:10 UTC

Is a forthcoming CW-Sieve subproject a thing or just speculation? This is my first hearing of it. I for one welcome it!

ReggieProject donor
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Project administrator
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Project scientist
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Joined: 10 May 14
Posts: 204
ID: 311759
Credit: 179,895,339
RAC: 45,168
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,046,192)Cullen LLR Ruby: Earned 2,000,000 credits (2,026,465)ESP LLR Ruby: Earned 2,000,000 credits (2,053,710)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,011,992)PPS LLR Ruby: Earned 2,000,000 credits (3,769,974)PSP LLR Amethyst: Earned 1,000,000 credits (1,587,883)SoB LLR Ruby: Earned 2,000,000 credits (2,305,993)SR5 LLR Ruby: Earned 2,000,000 credits (2,023,467)SGS LLR Ruby: Earned 2,000,000 credits (2,682,790)TRP LLR Amethyst: Earned 1,000,000 credits (1,121,859)Woodall LLR Amethyst: Earned 1,000,000 credits (1,686,633)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,211)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,420)PPS Sieve Sapphire: Earned 20,000,000 credits (22,440,747)AP 26/27 Sapphire: Earned 20,000,000 credits (20,077,538)GFN Sapphire: Earned 20,000,000 credits (41,816,292)WW Emerald: Earned 50,000,000 credits (50,172,000)PSA Sapphire: Earned 20,000,000 credits (20,070,245)
Message 150926 - Posted: 22 Jul 2021 | 23:00:38 UTC - in response to Message 150924.

Is a forthcoming CW-Sieve subproject a thing or just speculation? This is my first hearing of it. I for one welcome it!

It will come eventually. We don't have any sort of ETA, but it's on the timescale of months or maybe even years. It comes down to when admins and/or developers have time. I got WW up over the course of a few months when I was unemployed with lots of free time. That's no longer the case.

rogue
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Joined: 8 Sep 07
Posts: 1223
ID: 12001
Credit: 18,565,548
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (31,229)PSA Jade: Earned 10,000,000 credits (18,533,435)
Message 150935 - Posted: 23 Jul 2021 | 17:54:24 UTC

I assume that you referring to a sieve that only supports base 2 Cullens and Woodalls. Outside of adding support for other GPUs, what other improvements do you envision?

ReggieProject donor
Volunteer moderator
Project administrator
Volunteer tester
Project scientist
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Joined: 10 May 14
Posts: 204
ID: 311759
Credit: 179,895,339
RAC: 45,168
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,046,192)Cullen LLR Ruby: Earned 2,000,000 credits (2,026,465)ESP LLR Ruby: Earned 2,000,000 credits (2,053,710)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,011,992)PPS LLR Ruby: Earned 2,000,000 credits (3,769,974)PSP LLR Amethyst: Earned 1,000,000 credits (1,587,883)SoB LLR Ruby: Earned 2,000,000 credits (2,305,993)SR5 LLR Ruby: Earned 2,000,000 credits (2,023,467)SGS LLR Ruby: Earned 2,000,000 credits (2,682,790)TRP LLR Amethyst: Earned 1,000,000 credits (1,121,859)Woodall LLR Amethyst: Earned 1,000,000 credits (1,686,633)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,211)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,420)PPS Sieve Sapphire: Earned 20,000,000 credits (22,440,747)AP 26/27 Sapphire: Earned 20,000,000 credits (20,077,538)GFN Sapphire: Earned 20,000,000 credits (41,816,292)WW Emerald: Earned 50,000,000 credits (50,172,000)PSA Sapphire: Earned 20,000,000 credits (20,070,245)
Message 150938 - Posted: 24 Jul 2021 | 0:51:07 UTC

Note that about all of this is from memory and could be wrong, but here's what I remember:

When we ran CW-Sieve before, it only supported CPU and Nvidia GPUs. We would really like the to restart the subproject with support for AMD GPUs as well. Of course, speed improvements are always nice as well. I believe it's been close to a decade since that software was written so I imagine new CPU and GPU features could provide considerable speedup if the software supports it.

IIRC MTsieve was able to outperform one of the old programs but not the other. If we do use MTsieve (which I think is likely unless the old app outperforms it), we'll also need to do more testing and write/adapt a boinc wrapper to go with it. This is in addition to admins going through the old server side code, as well as doing some initial sieving to prevent initial uploads from being huge.

Profile DaveProject donor
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Joined: 13 Feb 12
Posts: 2926
ID: 130544
Credit: 1,551,426,790
RAC: 3,723,189
Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,000,095)Cullen LLR Jade: Earned 10,000,000 credits (10,008,839)ESP LLR Jade: Earned 10,000,000 credits (10,006,418)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (8,006,485)PPS LLR Turquoise: Earned 5,000,000 credits (7,998,171)PSP LLR Turquoise: Earned 5,000,000 credits (8,888,926)SoB LLR Turquoise: Earned 5,000,000 credits (9,306,239)SR5 LLR Turquoise: Earned 5,000,000 credits (6,619,866)SGS LLR Turquoise: Earned 5,000,000 credits (6,048,045)TRP LLR Turquoise: Earned 5,000,000 credits (6,001,707)Woodall LLR Turquoise: Earned 5,000,000 credits (6,007,879)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,003,334)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (268,250)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,502)PPS Sieve Double Silver: Earned 200,000,000 credits (307,000,341)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,133)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,970)AP 26/27 Double Silver: Earned 200,000,000 credits (200,128,500)GFN Double Bronze: Earned 100,000,000 credits (170,400,013)WW Double Gold: Earned 500,000,000 credits (544,772,000)PSA Double Silver: Earned 200,000,000 credits (200,000,001)
Message 150939 - Posted: 24 Jul 2021 | 5:02:30 UTC

Sounds like a plan to me.

rogue
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Joined: 8 Sep 07
Posts: 1223
ID: 12001
Credit: 18,565,548
RAC: 0
PPS LLR Bronze: Earned 10,000 credits (31,229)PSA Jade: Earned 10,000,000 credits (18,533,435)
Message 150940 - Posted: 24 Jul 2021 | 13:35:10 UTC - in response to Message 150938.

Note that about all of this is from memory and could be wrong, but here's what I remember:

When we ran CW-Sieve before, it only supported CPU and Nvidia GPUs. We would really like the to restart the subproject with support for AMD GPUs as well. Of course, speed improvements are always nice as well. I believe it's been close to a decade since that software was written so I imagine new CPU and GPU features could provide considerable speedup if the software supports it.

IIRC MTsieve was able to outperform one of the old programs but not the other. If we do use MTsieve (which I think is likely unless the old app outperforms it), we'll also need to do more testing and write/adapt a boinc wrapper to go with it. This is in addition to admins going through the old server side code, as well as doing some initial sieving to prevent initial uploads from being huge.


For base 2, the NVIDIA sieve is faster, but that sieve does not support other bases. It would be nice if improvements were made directly to the gcwsieve/gcwsievecl programs built from mtsieve, but mtsieve has some overhead as it is a generic framework. Someone wanting to write a new base 2 sieve for Cullen/Woodall will probably avoid the framework because they view it as a burden to writing the fastest possible code. I focus on writing code that is portable, readable, and easy for the average developer to understand and modify. Others I have worked with do not have that focus.

Profile Michael GoetzProject donor
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,132,712)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,520,913)PPS LLR Sapphire: Earned 20,000,000 credits (20,751,038)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,718,606)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)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 Jade: Earned 10,000,000 credits (10,118,303)GFN Emerald: Earned 50,000,000 credits (78,031,938)WW Sapphire: Earned 20,000,000 credits (32,204,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 150941 - Posted: 24 Jul 2021 | 15:04:23 UTC - in response to Message 150940.

For base 2, the NVIDIA sieve is faster, but that sieve does not support other bases.


To be clear, there's no need for additional *G*CW sieving at this point (or anywhere in the near future.) The interest is only for base 2 sieving.

____________
My lucky number is 75898524288+1

Chara34122
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Joined: 11 Feb 17
Posts: 83
ID: 490242
Credit: 14,964,025
RAC: 16,878
321 LLR Silver: Earned 100,000 credits (258,442)Cullen LLR Silver: Earned 100,000 credits (181,773)ESP LLR Silver: Earned 100,000 credits (239,556)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (199,718)PPS LLR Silver: Earned 100,000 credits (359,729)PSP LLR Silver: Earned 100,000 credits (321,756)SoB LLR Turquoise: Earned 5,000,000 credits (6,038,944)SR5 LLR Silver: Earned 100,000 credits (167,962)SGS LLR Silver: Earned 100,000 credits (388,159)TRP LLR Silver: Earned 100,000 credits (491,086)Woodall LLR Silver: Earned 100,000 credits (141,518)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,952,453)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,299)PPS Sieve Silver: Earned 100,000 credits (114,614)AP 26/27 Silver: Earned 100,000 credits (202,150)GFN Silver: Earned 100,000 credits (388,301)WW Silver: Earned 100,000 credits (220,000)PSA Silver: Earned 100,000 credits (292,160)
Message 150951 - Posted: 25 Jul 2021 | 21:14:22 UTC - in response to Message 150924.

Only for future. It is unlikely to restart even in 2 years but very good to know right now.
____________

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Message boards : Cullen/Woodall prime search : Future CW-sieve.

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