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Old 2008-06-05, 11:09   #727
PatrickSchmeer
 
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Nov 2006
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Quote:
Originally Posted by Kosmaj View Post
Only 10 more files remaining in the drive!
Am I the only one who wants to continue this drive in order to find megabit primes?
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Old 2008-06-05, 18:13   #728
VBCurtis
 
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No, Patrick, you are not. However, nobody built a sieve file for 1M+, and sieving at that exponent size for a dozen k's takes quite a few CPU-months. A sieve depth of 60-80T should get us in the ballpark; 2 or 3 Ghz-years on a 64-bit Athlon.

The 6th drive contains k-values sieved from 600k to 1.4M, so you get your wish for megabits on that one, delayed a few months to test the sub-megabit candidates. The initial batch of candidates is sieved to 30T, with the sieve continuing for higher exponents.
-Curtis
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Old 2008-06-06, 11:24   #729
AES
 
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983-984 complete. no primes.

Taking 990 to 991.
Attached Files
File Type: zip lresults.zip (11.2 KB, 52 views)
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Old 2008-06-07, 10:38   #730
amphoria
 
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985-986 complete, no primes.

Taking 991-992.
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Old 2008-06-08, 03:18   #731
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As Curtis said, we sieved these numbers only to 1M. When we started the drive in November 2006 (sieving started a few months before) even 1M looked a bit unrealistic to reach. But here we are just several files short of completion!

The 6th Drive featuring the following 12 k's will start very soon:
133, 145, 169, 187, 203, 205, 217, 235, 259, 275, 287, 295

The drive starts from n=600k and goes to n=1.4M.

Currently the best way to search for a megabit prime using presieved values on the forum is to run k=105 from n=1005k, files are available here. We also have k=5, 15, and 17 but starting at larger exponents. You can find details in respective threads.

Finally, if others agree, we can divide the 6th Drive in two parts, one from n=600k, and the other from n=1M so that people can find megabit primes sooner.
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Old 2008-06-08, 06:03   #732
Joshua2
 
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i took the 999-1000 file, sorry if that was selfish.
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Old 2008-06-09, 14:10   #733
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Yes it was, but we'll forgive you if you find a prime! Or, short of that, if you complete the range in less than 10 days.

BTW, Bmaxx completed 984-985 and found no primes.
He is now taking 992-993.
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Old 2008-06-10, 15:33   #734
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Just to let you all know that I am back to test 973-977 (20 % done) but this delay is Kosmaj fault.

Carlos
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Old 2008-06-10, 19:04   #735
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986-987 complete, no primes.

Taking 993-994.
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Old 2008-06-12, 22:27   #736
PatrickSchmeer
 
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Taking 994-995.
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Old 2008-06-12, 23:41   #737
Joshua2
 
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999-1000 Complete, no primes. I split the range up into 4 w/ newpgen since I have a quad core. Do I need to do anything w/ the four lrresults?
Taking 995-996

Last fiddled with by Joshua2 on 2008-06-12 at 23:46
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