Sieving drive for k=1005-2000 n=200K-500K - Page 11

MyDogBuster · 2009-01-17, 02:12

4050G - 4250G Complete

Results emailed

MyDogBuster · 2009-01-17, 02:30

In order to avoid a crunch on sieving, I'd think about starting a very very low intensity sieve of 1005-2000 n=500K-1MM. We will probably have to sieve to about 24-26T so getting started now would be wise.

gd_barnes · 2009-01-17, 03:21

Quote:

Originally Posted by MyDogBuster

In order to avoid a crunch on sieving, I'd think about starting a very very low intensity sieve of 1005-2000 n=500K-1MM. We will probably have to sieve to about 24-26T so getting started now would be wise.

Agreed totally. Actually, we thought far ahead on the n=600K-1M for k=400-1001 range and it was done several months before we got there but I totally misanticipated the speed at which the 5000th-place prime would rise to n>350K for the current range. PrimeGrid, searching in a style similar to our own for n=400K-500K on the Proth side, had a lot to do with that.

Now that you mention it, I'll start some sieving on one core for that within a couple of days and progress slowly. The low P-ranges take much longer and the file is very huge to start with but once it nears P=1T, then it's more manageable as a group effort.

This method of searching for primes is definitely the way to go in the future.

Gary

MyDogBuster · 2009-01-17, 03:34

Quote:

I'll start some sieving on one core for that within a couple of days and progress slowly. The low P-ranges take much longer and the file is very huge to start with but once it nears P=1T, then it's more manageable as a group effort.

Let me know if I can help. 1 core sounds about right here too.

gd_barnes · 2009-01-17, 08:09

Quote:

Originally Posted by MyDogBuster

Let me know if I can help. 1 core sounds about right here too.

OK, I'll take you up on that. I'll get it started and after I'm at about P=25G or so, we'll coordinate.

Thanks!

gd_barnes · 2009-01-17, 08:11

P=5.9T-7.1T is complete; now unreserved...factors Emailed.

MyDogBuster · 2009-01-17, 08:28

Quote:

P=5.9T-7.1T is complete; now unreserved...factors Emailed

Never tried emailing myself. Does it take very long? LOL

gd_barnes · 2009-01-17, 08:59

Quote:

Originally Posted by MyDogBuster

Never tried emailing myself. Does it take very long? LOL

No, just a few seconds.

That range is now available. Did you want to reserve it?

Glad to know folks are paying attention.

gd_barnes · 2009-01-17, 16:05

P=8.2T-8.6T is complete.

This sieving drive is now complete. Thanks to everyone for helping get this done quickly!

A file will be sent to David to load into port 8000 to restart the 8th drive here within the next half-hour.

Gary

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2009-01-17, 02:12	#111
MyDogBuster May 2008 Wilmington, DE 2²·23·31 Posts	4050G - 4250G Complete Results emailed

2009-01-17, 02:30	#112
MyDogBuster May 2008 Wilmington, DE 2852₁₀ Posts	In order to avoid a crunch on sieving, I'd think about starting a very very low intensity sieve of 1005-2000 n=500K-1MM. We will probably have to sieve to about 24-26T so getting started now would be wise.

2009-01-17, 08:11	#116
gd_barnes May 2007 Kansas; USA 10100000100111₂ Posts	P=5.9T-7.1T is complete; now unreserved...factors Emailed.

2009-01-17, 16:05	#119
gd_barnes May 2007 Kansas; USA 19·541 Posts	P=8.2T-8.6T is complete. This sieving drive is now complete. Thanks to everyone for helping get this done quickly! A file will be sent to David to load into port 8000 to restart the 8th drive here within the next half-hour. Gary