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Old 2015-06-26, 08:22   #694
pinhodecarlos
 
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK

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Available files
The attached file contains the 4-5M range, including already tested ones.
Please help yourself by extracting the range you want to test.
Extensively sieved by Psieve (latest update of June 22, 2014)
(36651 candidates).
Attached Files
File Type: zip k15_4Mto5M_400P.zip (98.7 KB, 98 views)
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Old 2015-06-26, 09:38   #695
amphoria
 
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"Dave"
Sep 2005
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It looks like you were posting this at the same time as I was editing the first post. Thank you anyway.
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Old 2015-06-26, 17:13   #696
Batalov
 
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"Serge"
Mar 2008
Phi(3,3^1118781+1)/3

100011001111012 Posts
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3900-4080 complete, no primes.
Taking 4080-4400.

Taking 4400-4660.

Taking 4660-4700 to even out (next FFT size kicks in a bit before 4.66M).

Last fiddled with by Batalov on 2015-06-29 at 21:12
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Old 2015-06-29, 21:10   #697
Batalov
 
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"Serge"
Mar 2008
Phi(3,3^1118781+1)/3

233D16 Posts
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Done. No primes.

1/100th of 4.7M<n<=5M candidates is also tested. All untested candidates are attached in the zip, for convenience.
The runtimes for the remaining 10902 candidates is ~3hr each (on AVX), ~1.5hr (on FMA. e.g. Xeon v3), and some longer time on non-AVX CPUs.
Attached Files
File Type: zip Res_k15.zip (436.5 KB, 114 views)
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Old 2015-06-30, 16:32   #698
henryzz
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"David"
Sep 2007
Cambridge (GMT)

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Looks like about 7hr on my Q6600
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Old 2017-05-02, 07:25   #699
Thomas11
 
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Feb 2003

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Taking 4700-4800.
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Old 2017-07-20, 10:40   #700
Thomas11
 
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4700-4800 complete.
Taking 4800-5000.
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Old 2017-09-27, 07:18   #701
Thomas11
 
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Feb 2003

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4800-5000 complete, no primes.

Taking 5M-5.2M.
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Old 2017-12-04, 08:56   #702
Thomas11
 
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Feb 2003

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5000-5200 complete, no primes.

Taking 5.2M-5.5M.
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Old 2018-04-11, 07:36   #703
Thomas11
 
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Feb 2003

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5200-5500 complete, no primes.

Taking 5.5M-5.8M.
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