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-   -   Team drive #10 k=1400-2000 n=500K-1M (https://www.mersenneforum.org/showthread.php?t=11666)

IronBits 2009-05-02 07:20

I moved 12 cores from port 8000.

I put the I7s on ports 4000 or 5000 as their sieve jobs finished.

Current allocation
20 cores on 4000 (12 now, 8 more by tomorrow morning sometime)
24 cores on 5000
09 cores on 8000 - all 64bit Linux

vaughan 2009-05-04 12:04

[QUOTE=gd_barnes;171861]
PCZ and Vaughan,

Could I talk you guys into moving most of your port 8000 machines over to Ironbit's ports 4000 (5th drive) and 5000 (6th drive) within the next 1-2 weeks?
Gary[/QUOTE]
OK, transition underway.

gd_barnes 2009-05-05 04:08

All results for n=520K-580K have now been processed. Results and primes have been checked against the usual places. No problems found. Excellent work everyone. For as quickly as we blew through this range and the large # of primes, it was a nice job keeping up with everything accurately.

Karsten, on your 10th drive page, you can complete the 557K-558K range.


Gary

gd_barnes 2009-05-10 14:23

All results for n=580K-600K have now been processed. Results and primes have been checked against the usual places. No problems found. :smile:

gd_barnes 2009-05-11 12:24

With the sieving drive now complete, I have now sent a file sieved to P=45T to David for n=630001-650000 for reloading into port 8000. This will involve stopping the server temporarily, deleting the current k/n pairs in that range at the end of the file, pasting the new pairs in at the end, and restarting the server.

I debated whether to go through with this hassle but ultimately felt it was worth it. It means that 4000+ composite k/n pairs will NOT have to be tested meaning that we should find primes around 2% faster than before when we get to that range, which should be in < 2 days. :smile:

Thanks to everyone for the excellent and fast job of sieving the range. Now, n=630K-1M will all test 2% faster, which amounts to nearly 75,000 k/n pairs that will not have to be tested! This will especially save a huge amount of testing time for n>900K, where tests will take, on average, more than twice as long as the current n=~625K range.


Gary

IronBits 2009-05-11 14:49

Done.

gd_barnes 2009-05-14 10:24

Karsten,

Can you process the results for n=600K-620K to me for this drive?


Thanks,
Gary

gd_barnes 2009-05-18 06:17

Reserving n=650K-680K for port 8000.

gd_barnes 2009-06-03 13:37

Results and primes for n=600K-650K for this drive have been verified against the usual places. No problems were found.

kar_bon 2009-06-09 23:13

does anybody noticed this close high-n pair!?

1495*2^659159-1
1815*2^659158-1

it's a new highest difference-1 n-pair for all k < 2000 so far!

gd_barnes 2009-07-28 05:02

Primes and results for this drive for n=650K-660K have been verified against the usual places. No problems found.


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