News - Page 6

gd_barnes · 2008-12-26, 06:09

It appears that Michael Hartley's Primesearch site may have gone the way of Riesel Sieve. There has been no way to connect to it in nearly 2 months.

Therefore like I recommended at CRUS for the Riesel Sieve site, I am recommending here for the Primesearch site that people remove all links to it from their various web pages, posts, and threads. I have already removed it in two places here. If you see other links to it, let us know and we'll get them removed. Having links that don't work in main project pages does not look very good.

I will send an Email to Michael shortly but the problem has never been this bad. I believe the site that it is hosted on has little space available unless he pays a fee. I suspect that we may have filled it up to its max when I entered everything through n=540K and starting reserving final ranges for n=560K-600K. It was at that point that it went down and I haven't been able to get back on it.

Because of the instability of the site, even if it comes back up, I would suggest that we don't provide permanent links to it in web pages, threads, or posts. Off-hand references to it can be made, perhaps in Email or PM's, but it looks very bad to any new searchers to have invalid permanent links in project pages, even if they are only invalid 20-30% of the time.

Gary

gd_barnes · 2008-12-26, 08:07

I have now verified the results files for the range of n=540K-600K. All primes are correct on the top-5000 site, the 1st post of the 1st drive, and Karsten's 1st drive page. There was a small problem on the k=300-2000 page:

The prime for 885*2^564282-1 is listed as 855*2^564282-1. Karsten, if you can take care of that, everything will be synced up.

If the PrimeSearch site ever comes back up, I'll attempt to get all of the primes and ranges submitted for n=540K-600K.

Once again, thanks to all for an excellent finish on the 1st drive to beat the year end goal by over a week. We could not have done it without everyone's efforts!

The 1st drive is now considered officially complete!

Look for a new sieving drive for the k=1005-2000 range in the next few hours.

Gary

gd_barnes · 2008-12-26, 09:12

A high-priority team sieving drive for k=1005-2000 has started here. Please consider helping us out as we attempt to get it sieved far enough to begin a testing drive before the 5000th-place prime reaches n=350K.

Gary

gd_barnes · 2008-12-30, 05:53

Here are some interesting records for primes found by NPLB in any rolling 24-hour time frame. All times are GMT.

Most total primes found for n>260K where there were any number of top-5000 primes: 26
2 top-5000/24 non-top-5000; March 6th @ 12:01 AM to March 7th @ 12:01 AM.
(Same record for up to 2 top-5000 primes.)

Most total primes found for n>260K where there were 3 or more top-5000 primes: 25
3 top-5000/22 non-top-5000; March 5th @ 7 AM to March 6th @ 7 AM.

Most total primes found for n>260K where there were 4 or more top-5000 primes: 19
14 top-5000/5 non-top-5000; March 11th @ 8 AM to March 12th @ 8 AM.
(Same record for up to 14 top-5000 primes.)

Most total primes found for n>260K where there were 15 or more top-5000 primes: 18
16 top-5000/2 non-top-5000; March 11th @ 3 AM to March 12th @ 3 AM.
(Same record for up to 16 top-5000 primes.)

Most total top-5000 primes: 16
March 11th @ 3 AM to March 12th @ 3 AM.

These will be some records to shoot for on our new k=1005-2000 drives in the near future!

Gary

gd_barnes · 2009-01-01, 04:48

I've added a team drive thread for our new k=1005-2000 and n=350K-500K effort as well as a separate primes thread for that k-range.

To make some room for 2 more stickies, I unstickied the 'join a team' thread.

Gary

gd_barnes · 2009-01-11, 06:24

I have temporarily stickied the thread about Peter Benson's search area that overlaps our upcoming 9th drive here.

Please provide opinions if you would like.

Gary

kar_bon · 2009-01-12, 12:40

i've updated the pages for Drives #5-#7 with all data to 2009-01-11 00:00 so far.

the page for Drive #9 follows the next days.

i also generated a new page for NPLB-Doublechecks!

all available under www.rieselprime.de

gd_barnes · 2009-01-21, 10:09

We are starting a low-priority results file file-in effort for the missing results from Peter Benson's files that he sent us for k=1005-1400 for n=200K-479264.

See details in this thread.

Gary

gd_barnes · 2009-01-22, 11:26

I have verified all of the results processed to me for the 5th, 6th, and 7th drives vs. our original sieved files. I also checked all primes vs. the top-5000 site, the 1st post in each thread, and Rieselprime.org.

Other than 1 prime not listed in the 1st post of one thread and 3 missing results from a manual range that have since been corrected, everything looked great.

Karsten the "official" contiguous search limits are now:

k=400-600; n=615K

k=600-800; n=619K

k=800-1001; n=610K

Gary

Mini-Geek · 2009-01-22, 12:10

Quote:

Originally Posted by gd_barnes

k=400-600; n=605K (will likely be n=615K upon the completion of a small part of a manual range shortly before or after the rally)

I just completed my range and posted the results in the Drive 5 thread.

gd_barnes · 2009-01-22, 12:12

Quote:

Originally Posted by Mini-Geek

I just completed my range and posted the results in the Drive 5 thread.

...checking it now and will edit the above post about drive completion limits when done.

Edit: verification complete.

2008-12-26, 09:12	#58
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	High-priority sieving drive... A high-priority team sieving drive for k=1005-2000 has started here. Please consider helping us out as we attempt to get it sieved far enough to begin a testing drive before the 5000th-place prime reaches n=350K. Gary

2008-12-30, 05:53	#59
gd_barnes May 2007 Kansas; USA 3³×5×7×11 Posts	NPLB primes found records in 24 hours Here are some interesting records for primes found by NPLB in any rolling 24-hour time frame. All times are GMT. Most total primes found for n>260K where there were any number of top-5000 primes: 26 2 top-5000/24 non-top-5000; March 6th @ 12:01 AM to March 7th @ 12:01 AM. (Same record for up to 2 top-5000 primes.) Most total primes found for n>260K where there were 3 or more top-5000 primes: 25 3 top-5000/22 non-top-5000; March 5th @ 7 AM to March 6th @ 7 AM. Most total primes found for n>260K where there were 4 or more top-5000 primes: 19 14 top-5000/5 non-top-5000; March 11th @ 8 AM to March 12th @ 8 AM. (Same record for up to 14 top-5000 primes.) Most total primes found for n>260K where there were 15 or more top-5000 primes: 18 16 top-5000/2 non-top-5000; March 11th @ 3 AM to March 12th @ 3 AM. (Same record for up to 16 top-5000 primes.) Most total top-5000 primes: 16 March 11th @ 3 AM to March 12th @ 3 AM. These will be some records to shoot for on our new k=1005-2000 drives in the near future! Gary

2009-01-22, 11:26	#64
gd_barnes May 2007 Kansas; USA 24233₈ Posts	I have verified all of the results processed to me for the 5th, 6th, and 7th drives vs. our original sieved files. I also checked all primes vs. the top-5000 site, the 1st post in each thread, and Rieselprime.org. Other than 1 prime not listed in the 1st post of one thread and 3 missing results from a manual range that have since been corrected, everything looked great. Karsten the "official" contiguous search limits are now: k=400-600; n=615K k=600-800; n=619K k=800-1001; n=610K Gary Last fiddled with by gd_barnes on 2009-01-22 at 12:21 Reason: k=400-600 now 615K

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2008-12-26, 06:09	#56
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	It appears that Michael Hartley's Primesearch site may have gone the way of Riesel Sieve. There has been no way to connect to it in nearly 2 months. Therefore like I recommended at CRUS for the Riesel Sieve site, I am recommending here for the Primesearch site that people remove all links to it from their various web pages, posts, and threads. I have already removed it in two places here. If you see other links to it, let us know and we'll get them removed. Having links that don't work in main project pages does not look very good. I will send an Email to Michael shortly but the problem has never been this bad. I believe the site that it is hosted on has little space available unless he pays a fee. I suspect that we may have filled it up to its max when I entered everything through n=540K and starting reserving final ranges for n=560K-600K. It was at that point that it went down and I haven't been able to get back on it. Because of the instability of the site, even if it comes back up, I would suggest that we don't provide permanent links to it in web pages, threads, or posts. Off-hand references to it can be made, perhaps in Email or PM's, but it looks very bad to any new searchers to have invalid permanent links in project pages, even if they are only invalid 20-30% of the time. Gary

2008-12-26, 08:07	#57
gd_barnes May 2007 Kansas; USA 3³×5×7×11 Posts	I have now verified the results files for the range of n=540K-600K. All primes are correct on the top-5000 site, the 1st post of the 1st drive, and Karsten's 1st drive page. There was a small problem on the k=300-2000 page: The prime for 8852^564282-1 is listed as 855**2^564282-1. Karsten, if you can take care of that, everything will be synced up. If the PrimeSearch site ever comes back up, I'll attempt to get all of the primes and ranges submitted for n=540K-600K. Once again, thanks to all for an excellent finish on the 1st drive to beat the year end goal by over a week. We could not have done it without everyone's efforts! The 1st drive is now considered officially complete! Look for a new sieving drive for the k=1005-2000 range in the next few hours. Gary

2009-01-01, 04:48	#60
gd_barnes May 2007 Kansas; USA 3³·5·7·11 Posts	I've added a team drive thread for our new k=1005-2000 and n=350K-500K effort as well as a separate primes thread for that k-range. To make some room for 2 more stickies, I unstickied the 'join a team' thread. Gary

2009-01-11, 06:24	#61
gd_barnes May 2007 Kansas; USA 10395₁₀ Posts	I have temporarily stickied the thread about Peter Benson's search area that overlaps our upcoming 9th drive here. Please provide opinions if you would like. Gary

2009-01-12, 12:40	#62
kar_bon Mar 2006 Germany 2³·3·11² Posts	i've updated the pages for Drives #5-#7 with all data to 2009-01-11 00:00 so far. the page for Drive #9 follows the next days. i also generated a new page for NPLB-Doublechecks! all available under www.rieselprime.de

2009-01-21, 10:09	#63
gd_barnes May 2007 Kansas; USA 3³×5×7×11 Posts	We are starting a low-priority results file file-in effort for the missing results from Peter Benson's files that he sent us for k=1005-1400 for n=200K-479264. See details in this thread. Gary