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Message boards : Cullen/Woodall prime search : "Optimal" sieve depth reached for 5M-10M

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JohnProject donor
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Posts: 2876
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Credit: 2,681,934
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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 10976 - Posted: 3 Oct 2008 | 12:55:37 UTC
Last modified: 3 Oct 2008 | 23:30:42 UTC

In a review yesterday of the Cullen/Woodall Project status, it was determined that we are at "optimal" sieve depth...actually, a little beyond it. Therefore, we are stopping the 32 bit and 64 bit Cullen/Woodall Sieve applications and archiving the sieve. Cullen/Woodall LLR will remain active up to n=10M.

32 bit "optimal" happened last month. It was referenced in this post but as an oversight by me, I failed to relay that information to Rytis. It looks as though from the activity logs, not many 32 bit users saw that post. As a result, ironically, the extra 32 bit crunching helped advance the 64 bit "optimal" level that much faster. Once the buffer is emptied, no more work will be added to the queue. Please expect shutdown within 24-48 hours.

This is a terrific accomplishment. Thank you for all the work you have done. Now let's find another Woodall...or better yet, our first Cullen. :D

Additional Information

The future of the Cullen/Woodall search will be re-evaluated as we approach n=10M. Currently a combined sieve for 10M<n<25M has already been generated to p=10G. However, we will hold off on implementing this in BOINC until we determine the direction after 10M.

This means that PG BOINC will only have two sieves right now - PSP sieve and PPS sieve. We may in the near future add the 321 5M-25M sieve to replace the CW sieve as we'll need that file when the current 321 LLR progress reaches n=5M (currently at 3.99M).

Also, we're working on the addition of another prime project. However, nothing will be added until after the new server is installed.

More details to come later.
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JohnProject donor
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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 10987 - Posted: 4 Oct 2008 | 3:14:52 UTC

As of this post, the buffer is empty. The only WU's remaining will be resends. With a deadline of 7 days, we expect everything to be completed in a week or so.

If you still wish to sieve, please consider the PSP Sieve or the PPS Sieve (64 bit only). They both have a great deal of work to do. Also, if you're interested in manual sieving, there's the 321 Sieve.

Thanks again for your help.
____________

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PPS LLR Bronze: Earned 10,000 credits (67,316)PSP LLR Bronze: Earned 10,000 credits (15,851)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (36,529)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (199,338)PPS Sieve Amethyst: Earned 1,000,000 credits (1,580,085)AP 26/27 Bronze: Earned 10,000 credits (48,516)GFN Silver: Earned 100,000 credits (138,280)PSA Bronze: Earned 10,000 credits (17,473)
Message 11093 - Posted: 13 Oct 2008 | 4:20:35 UTC - in response to Message 10976.

LLR will remain active up to n=10M.

Is there away for us to tell what number we are up to in the n's?
Speedy

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Message 11095 - Posted: 13 Oct 2008 | 5:30:25 UTC - in response to Message 11093.
Last modified: 13 Oct 2008 | 5:32:39 UTC

LLR will remain active up to n=10M.

Is there away for us to tell what number we are up to in the n's?
Speedy

Yes.

Profile John M. Johnson "Novex"Project donor
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321 LLR Bronze: Earned 10,000 credits (50,802)Cullen LLR Silver: Earned 100,000 credits (111,106)PPS LLR Silver: Earned 100,000 credits (101,350)PSP LLR Bronze: Earned 10,000 credits (15,210)SGS LLR Bronze: Earned 10,000 credits (27,055)TPS LLR (retired) Bronze: Earned 10,000 credits (67,826)Woodall LLR Bronze: Earned 10,000 credits (10,609)321 Sieve (suspended) Bronze: Earned 10,000 credits (70,873)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (20,185)PPS Sieve Bronze: Earned 10,000 credits (20,034)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (24,551)TRP Sieve (suspended) Bronze: Earned 10,000 credits (40,040)AP 26/27 Silver: Earned 100,000 credits (159,148)PSA Silver: Earned 100,000 credits (344,961)
Message 12516 - Posted: 4 Jan 2009 | 19:53:06 UTC
Last modified: 4 Jan 2009 | 19:54:19 UTC

For Cullen it looks like we only have 41 WU's left for 5M-6M. So it looks like were doing good for getting it done. We just need to get a Cullen prime here soon!

Edit: We still have a bunch for 6M-7M though but for the completion of all of the 5M that is a good accomplishment.
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John M. Johnson "Novex"

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Discovered the World's First base 68 Generalized Cullen prime!!!Eliminated 2 conjecture "k"s321 LLR Gold: Earned 500,000 credits (517,694)Cullen LLR Bronze: Earned 10,000 credits (22,649)PPS LLR Ruby: Earned 2,000,000 credits (3,716,757)PSP LLR Amethyst: Earned 1,000,000 credits (1,255,162)SoB LLR Amethyst: Earned 1,000,000 credits (1,529,355)SGS LLR Bronze: Earned 10,000 credits (79,385)TRP LLR Bronze: Earned 10,000 credits (42,673)Woodall LLR Silver: Earned 100,000 credits (360,820)321 Sieve (suspended) Bronze: Earned 10,000 credits (21,641)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,449,647)PPS Sieve Ruby: Earned 2,000,000 credits (4,110,585)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (75,714)TRP Sieve (suspended) Bronze: Earned 10,000 credits (54,880)AP 26/27 Bronze: Earned 10,000 credits (42,894)PSA Emerald: Earned 50,000,000 credits (78,365,420)
Message 12517 - Posted: 4 Jan 2009 | 20:11:07 UTC - in response to Message 12516.

For Cullen it looks like we only have 41 WU's left for 5M-6M. So it looks like were doing good for getting it done. We just need to get a Cullen prime here soon!



Looks like 51 to me which means you are the one who will do those 10 WUs to compensate the difference ;)

Of those 51, I've got 3 in my cache, wating for a bunch of woodalls to finish...
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Message boards : Cullen/Woodall prime search : "Optimal" sieve depth reached for 5M-10M

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