Mini-drive for k=3010-3200 n=420259-600000

[gamer007]

3029*2^460132-1 is prime.
Rank 4946. Just made it in.

The reservation is almost finished. I'd say 2-3 days left.

[gd_barnes]

Originally Posted by gamer007

3029*2^460132-1 is prime.
Rank 4946. Just made it in.

The reservation is almost finished. I'd say 2-3 days left.

And just 13% of the way into the file. Obviously Grobie never worked on it at all.

I looked again. The way PrimeGrid is dumping primes, the 5000th prime is likely to be at n=460K within ONE day! My guess is that you'll still finish to n=461K before the 5000th prime hits there.

Thanks for putting 4 cores on it.

[gd_barnes]

More files have been posted. Come and get 'em!

Max,

I went ahead and posted them because I only have the specific file needed for this drive up to n=500K; that is with the appropriate 7 k's removed. We'll need to cut n=500K-1M out of the k=3000-3400 master sieve file and remove k=3001-3009, 3045, and 3135 from it before going higher.

But before doing that, we have a decision to make on what to do above n=500K on this drive. The original intent of this drive was just to finish up Chris's sieve file but since we included it in the huge k=2000-3400 sieve, we can do whatever we want with n>500K. We could turn it into a PRPnet drive or something with manual files available.


Gary

[mdettweiler]

Originally Posted by gd_barnes

But before doing that, we have a decision to make on what to do above n=500K on this drive. The original intent of this drive was just to finish up Chris's sieve file but since we included it in the huge k=2000-3400 sieve, we can do whatever we want with n>500K. We could turn it into a PRPnet drive or something with manual files available.

I like the idea of a PRPnet drive, since it would be a great way to get PRPnet rolling at NPLB without the hassle of converting over existing LLRnet-based drives just yet. Regardless of how we do it, though, I definitely feel we should continue with this rather than stopping at 500K; the top-5000 entry point will be at top-5000 in the somewhat near future and it would be a real shame for all this perfectly good sieve file to miss out on being top-5000 range.

[gamer007]

And another one. :)

3177*2^460902-1 is prime.

[gd_barnes]

Very good Gamer. Even though they'll only be in top 5000 for ~1 day (1st prime) and ~3-4 days (2nd prime), it's nice to have the contiguous range of primes in the top 5000 DB.

[gd_barnes]

Originally Posted by mdettweiler

I like the idea of a PRPnet drive, since it would be a great way to get PRPnet rolling at NPLB without the hassle of converting over existing LLRnet-based drives just yet. Regardless of how we do it, though, I definitely feel we should continue with this rather than stopping at 500K; the top-5000 entry point will be at top-5000 in the somewhat near future and it would be a real shame for all this perfectly good sieve file to miss out on being top-5000 range.

Sounds good to me. Everyone feel free to offer your input. We've never had a drive with only 100 k's in it at n<600K before so this would be a good experiment for PRPnet.

My suggestion at n=500K would probably be to open it up to everyone with this stipulation: No more than 8 cores from any one person on it. That'd help keep it a little further ahead of the 5000th prime but not have the higher resourced folks drown out the ones with less cores. With only 100 k's, it would advance faster than our typical drives that are either 300-500 k's or are already at n>700K.


Gary

[gamer007]

460K-461K has been completed! :)

EDIT: Now to resume my other reservations. Also reserving 479K-480K.

[gd_barnes]

Nice work Gamer. Thanks for helping knock that out quickly.

[kar_bon]

3075*2^478329-1 is prime

[gamer007]

3063*2^479028-1 is prime.