Strategic Double Clicking - Page 24

Madpoo · 2015-09-17, 16:24

Just ran a daily query... there's a few more today that haven't been picked up. One is freshly expired and the other two got swept into the mix now that their bad count is high enough to fall into the "twice as many bad as good" category.

Code:

exponent	Bad	Good	Unk	Sus	Solo	Mis	worktodo
35682739	10	5	5	6	4	7	DoubleCheck=35682739,71,1
37047167	10	5	5	6	4	7	DoubleCheck=37047167,71,1
40792733	3	1	2	2	2	2	DoubleCheck=40792733,72,1

Meanwhile, I picked up a somewhat ambitious project. There are a lot of systems out there that have zero bad/zero good, so I figured I'd pick the smallest, single-checked exponent from them and do a test, just to get those machines on the record.

Since there are so many, I'm starting out with doing that on just the systems that had one of their exponents double-checked already without a match, and have 4 or more in the "unknown" category. After all, if I find a bad one I want to be able to chase down more from that same system.

As I progress I'll loosen up my query more and more and eventually maybe we'll get at least one "on the record" verification for each system.

I did find a few super bad ones this way already, but it won't help me find any hidden primes below what we know so far... these systems, for whatever reason, all did work in the 60M-80M range. But it's still fun.

And hopefully I find enough bad systems out there to keep giving people lists of exponents to strategically double check.

My hope is that I can provide lists with at least a 50/50 shot of your result being the correct one and the previous one being wrong. To me, doing better than a 3% chance of the same (which is roughly the error rate in general, I think) would be good, but for the purposes of this project, 50% odds of finding bad results would be great.

Madpoo · 2015-09-17, 18:04

I ran across another one needing a quad check now, if anyone is interested.

35017579

sdbardwick · 2015-09-17, 18:33

Quote:

Originally Posted by Madpoo

I ran across another one needing a quad check now, if anyone is interested.

35017579

Got it!

Madpoo · 2015-09-18, 04:49

Oohh, this one just became available thanks to an expired assignment.

It's all but guaranteed that the first check on this was wrong. I mean, that system has 24 bad, only 1 good. This is the final un-DC'd exponent from that system, so it'll be good to close the book on it.

Code:

exponent	Bad	Good	Unk	Sus	Solo	Mis	worktodo
37825399	24	1	1	0	1	0	DoubleCheck=37825399,71,1

sdbardwick · 2015-09-18, 04:55

Quote:

Originally Posted by UBR47K

Requesting a Double (?Quad?) check on a CUDALucas DC result:
http://www.mersenne.org/report_expon...6125533&full=1

We match!

sdbardwick · 2015-09-18, 05:03

Quote:

Originally Posted by Madpoo

Oohh, this one just became available thanks to an expired assignment.

It's all but guaranteed that the first check on this was wrong. I mean, that system has 24 bad, only 1 good. This is the final un-DC'd exponent from that system, so it'll be good to close the book on it.

Code:

exponent	Bad	Good	Unk	Sus	Solo	Mis	worktodo
37825399	24	1	1	0	1	0	DoubleCheck=37825399,71,1

Ok, lets close the book then. Should be done in about 17 hours, unless $^#%@$ Win10 decides to ignore my settings again and install updates in the middle of the night.

UBR47K · 2015-09-18, 05:33

Quote:

Originally Posted by sdbardwick

We match!

Thank you very much

Madpoo · 2015-09-18, 18:30

Quote:

Originally Posted by sdbardwick

Ok, lets close the book then. Should be done in about 17 hours, unless $^#%@$ Win10 decides to ignore my settings again and install updates in the middle of the night.

Cool, thanks. I was tempted to do it myself but I just loaded up my systems with about 2-3 weeks of work so that would have just been greedy of me to grab that low hanging fruit.

sdbardwick · 2015-09-18, 21:50

Quote:

Originally Posted by Madpoo

Cool, thanks. I was tempted to do it myself but I just loaded up my systems with about 2-3 weeks of work so that would have just been greedy of me to grab that low hanging fruit.

As expected, we need a triple check...

endless mike · 2015-09-19, 00:06

Quote:

Originally Posted by sdbardwick

As expected, we need a triple check...

I'll do the triple check.

sdbardwick · 2015-09-19, 12:25

Quote:

Originally Posted by Madpoo

I ran across another one needing a quad check now, if anyone is interested.

35017579

We match!

2015-09-17, 16:24	#254
Madpoo Serpentine Vermin Jar Jul 2014 3,313 Posts	Few more exponents Just ran a daily query... there's a few more today that haven't been picked up. One is freshly expired and the other two got swept into the mix now that their bad count is high enough to fall into the "twice as many bad as good" category. Code: exponent Bad Good Unk Sus Solo Mis worktodo 35682739 10 5 5 6 4 7 DoubleCheck=35682739,71,1 37047167 10 5 5 6 4 7 DoubleCheck=37047167,71,1 40792733 3 1 2 2 2 2 DoubleCheck=40792733,72,1 Meanwhile, I picked up a somewhat ambitious project. There are a lot of systems out there that have zero bad/zero good, so I figured I'd pick the smallest, single-checked exponent from them and do a test, just to get those machines on the record. Since there are so many, I'm starting out with doing that on just the systems that had one of their exponents double-checked already without a match, and have 4 or more in the "unknown" category. After all, if I find a bad one I want to be able to chase down more from that same system. As I progress I'll loosen up my query more and more and eventually maybe we'll get at least one "on the record" verification for each system. I did find a few super bad ones this way already, but it won't help me find any hidden primes below what we know so far... these systems, for whatever reason, all did work in the 60M-80M range. But it's still fun. And hopefully I find enough bad systems out there to keep giving people lists of exponents to strategically double check. My hope is that I can provide lists with at least a 50/50 shot of your result being the correct one and the previous one being wrong. To me, doing better than a 3% chance of the same (which is roughly the error rate in general, I think) would be good, but for the purposes of this project, 50% odds of finding bad results would be great. Last fiddled with by Madpoo on 2015-09-17 at 16:51

2015-09-17, 18:04	#255
Madpoo Serpentine Vermin Jar Jul 2014 3,313 Posts	Another quad check needed I ran across another one needing a quad check now, if anyone is interested. 35017579

2015-09-18, 04:49	#257
Madpoo Serpentine Vermin Jar Jul 2014 3,313 Posts	This one is almost surely wrong Oohh, this one just became available thanks to an expired assignment. It's all but guaranteed that the first check on this was wrong. I mean, that system has 24 bad, only 1 good. This is the final un-DC'd exponent from that system, so it'll be good to close the book on it. Code: exponent Bad Good Unk Sus Solo Mis worktodo 37825399 24 1 1 0 1 0 DoubleCheck=37825399,71,1

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