View Single Post
Old 2014-05-30, 23:10   #1
pinhodecarlos
 
pinhodecarlos's Avatar
 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK

4,597 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, 109 views)

Last fiddled with by Kosmaj on 2017-05-14 at 02:39 Reason: status update
pinhodecarlos is offline   Reply With Quote