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-   -   Trippple Checks (https://www.mersenneforum.org/showthread.php?t=17108)

Jayder 2017-02-09 08:07

[QUOTE=kladner;452593]So Mark and I were both wrong. :picard:
The report may not be accepted because a factor has been found. Regardless, your effort is greatly appreciated. Triple checks serve to prove the (in)accuracy of equipment as well as determining prime status. Thanks for making the run. You deserve the credit I got. :tu:[/QUOTE]
You're very good at delivering bad news! :P But no, I hadn't even thought of the credit. If I ever get finished with factordb, I think I'll help with some more triple checks.

Perhaps the result could be manually entered into the database by Madpoo?

ric 2017-02-09 12:32

[QUOTE=Jayder;452592]I have tried reporting it in the manual testing page, but it won't take it. What do I do?[/QUOTE]

Have you tried via "regular" communication? Despite being not assigned, the server is not that picky when it comes to multiple cZecks...

Mark, you made me lose my bet... :gah:

Mark Rose 2017-02-09 15:46

My first verified bad result! That machine has turned in quite a few mismatches. I recently upgraded it from Ubuntu 14.04 to 16.04. It also runs kvm. It's fully upgraded, CPU temps are fine, not overclocked, and it passes memtest86. I'll see if it continues to turn in bad results and if so try running a torture test.

sdbardwick 2017-02-09 17:28

[QUOTE=Mark Rose;452607]My first verified bad result! That machine has turned in quite a few mismatches. I recently upgraded it from Ubuntu 14.04 to 16.04. It also runs kvm. It's fully upgraded, CPU temps are fine, not overclocked, and it passes memtest86. I'll see if it continues to turn in bad results and if so try running a torture test.[/QUOTE]

And yet we match on [URL="http://www.mersenne.org/report_exponent/?exp_lo=68942537&full=1"]68942537[/URL] :smile:

Mark Rose 2017-02-09 21:00

[QUOTE=sdbardwick;452618]And yet we match on [URL="http://www.mersenne.org/report_exponent/?exp_lo=68942537&full=1"]68942537[/URL] :smile:[/QUOTE]

Well that's interesting.

Madpoo 2017-02-10 05:47

[QUOTE=Jayder;452592]My quadruple check of M42249167 resulted in a residue that matches the one from the first LL test. I have tried reporting it in the manual testing page, but it won't take it. What do I do?[/QUOTE]

Yeah... if an exponent is factored it won't accept an LL result unless you had an assignment for it (in which case it gives you credit out of pity. :smile: )

A while back I looked through old cases where multiple test hadn't resulted in a match, but it got factored in the meanwhile. I force-created assignments for them and ran it so I could check it in and figure out which test was bad. But to me it was only worthwhile for small exponents that were quickly checked. I think a 42M exponent would be more than I'd care to tackle on a just-for-fun basis. LOL

kladner 2017-02-10 07:09

[QUOTE=Mark Rose;452521]I'm really not confident in this machine. I have one more exponent that could use TC:

DoubleCheck=[URL="http://www.mersenne.org/M42291517"]42291517[/URL],72,1[/QUOTE]
I matched the first test.

Mark Rose 2017-02-10 13:52

The machine has turned in another verified result. Hopefully the problem is gone.

There are a few more suspect triple checks pending/in progress.

kladner 2017-02-10 17:17

[QUOTE=Mark Rose;452701]The machine has turned in another verified result. [U][B]Hopefully the problem is gone.
[/B][/U]
There are a few more suspect triple checks pending/in progress.[/QUOTE]
I share this hope. My system produced a proven bad result on the test just previous to this one (see above.)

S485122 2017-02-10 17:25

[QUOTE=Madpoo;452684]Yeah... if an exponent is factored it won't accept an LL result unless you had an assignment for it (in which case it gives you credit out of pity. :smile: )
...[/QUOTE]In my opinion those LL results should be accepted : they bring knowledge to the owners of the machines that produced the previous results.

But, in my opinion once an exponent is done with (factored or LL'ed) there should be no credit awarded any more.: the result is outside the scope of GIMPS.

Then the credit earned by the already achieved P-1 factoring limits should be deducted from a P-1 result that is submitted afterwards.

Perhaps a better option would be to do away with the credits and any ranking system altogether.

Jacob

Madpoo 2017-02-23 20:04

This... [B]this[/B] is why independent checks are critically important:
[URL="https://www.mersenne.org/M42525269"]M42525269[/URL]

I'm doing my own run and I'm [I]pretty sure[/I] I'll come up with a different answer.


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