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Old 2014-05-30, 23:10   #1
pinhodecarlos
 
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK

7×661 Posts
Default The Third Megabit Drive

We are starting the Third Megabit Drive.
The k's on this current drive, as of 30 May 2014, are at level n=1.4M therefore the goal of this drive is to take them up to 2M. Goal can be prior extended.

The k's of this drive are:

203, 205, 219, 227, 235, 257, 259

Update (June 03, 2014): adding k=275 and k=295 to the drive from n=1680k. Range n=1400-1680k for both k added as "batch 2".

Update (June 08, 2014): batch 2 completed.

Update (July 09, 2014): The drive is completed to n=2M.

Update (June 16, 2015): Reopening the drive from n=2M.

Please help yourself and happy hunting!

Status

Batch 1 (7 k's to n=1680k and all 9 k's from n=1680k)
Code:
    Range of n        Tested by       Status
1,400,000-1,404,000 - Carlos        - Complete
1,404,000-1,408,000 - Trilo         - Complete
1,408,000-1,412,000 - Thomas        - Complete
1,412,000-1,418,000 - Carlos        - Complete
1,418,000-1,450,000 - kracker       - Complete
1,450,000-1,720,000 - Batalov       - Complete (5 primes)
1,720,000-1,728,000 - Carlos        - Complete
1,728,000-1,740,000 - kracker       - Complete
1,740,000-1,750,000 - Carlos        - Complete
1,750,000-1,800,000 - kracker       - Complete
1,800,000-1,820,000 - Carlos        - Complete
1,820,000-1,834,000 - Batalov       - Complete (2 primes)
1,834,000-1,838,000 - Carlos        - Complete
1,838,000-1,854,000 - Batalov       - Complete (1 prime)
1,854,000-1,866,000 - Carlos        - Complete
1,866,000-2,000,000 - Batalov       - Complete
2,000,000-2,003,175 - Carlos        - Complete
2,003,176-2,025,000 - Thomas11      - Complete
2,025,000-2,027,970 - Carlos        - Complete
2,027,971-2,050,000 - Thomas11      - Complete
2,050,000-2,050,963 - Carlos        - Complete
2,050,963-2,060,000 - Curtis        - Complete
2,060,000-2,102,000 - Kosmaj        - Complete
Batch 2 (k=275 and 295 from n=1400k to n=1680k)
Code:
    Range of n        Tested by       Status
1,400,000-1,420,000 - Carlos        - Complete
1,420,000-1,680,000 - Batalov       - Complete
Test Files
Extensively sieved by Psieve (the latest sieve file of July 31, 2011)

See attachment with candidates from n=2M to 3M (split into 2k blocks, kindly prepared by Carlos).

FFT lengths
Up to about n=1820k the 112k FFT will be used. AVX machines will benefit from the intermediate 120k FFT in the n=1850-1960k interval, where non-AVX machines will use the 128k FFT instead.

PS (Please attach zipped results naming like TMD_1400to1405.txt.zip and so on)

Found Primes:

203 [0]:
205 [2]: 1537779, 1666435
219 [0]:
227 [0]:
235 [2]: 1718787, 1824515
257 [1]: 1658254
259 [1]: 1695723
275 [1]: 1846390
295 [1]: 1832129

Total: 8 primes
(Found primes for 6 out of 9 k's)
Attached Files
File Type: zip TMDfrom2Mto3M.zip (728.8 KB, 111 views)

Last fiddled with by Kosmaj on 2017-05-14 at 02:39 Reason: status update
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