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Message boards : Seventeen or Bust : Can I have "my" residues"?

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Baumann Eduard

Joined: 24 May 18
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Message 118666 - Posted: 15 Jun 2018 | 11:26:17 UTC

For the moment I have accomplished three SoB tasks and got al silver badge. I have learned to find the k and n of my tasks (in the input file).
Question: Can I have the residue of my accomplished tasks as a "souvenir" ?

Michael Goetz
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Message 118668 - Posted: 15 Jun 2018 | 13:10:16 UTC - in response to Message 118666.

For the moment I have accomplished three SoB tasks and got al silver badge. I have learned to find the k and n of my tasks (in the input file).
Question: Can I have the residue of my accomplished tasks as a "souvenir" ?

21181*2^25307132+1 is not prime. RES64: 2DD02DBCEC6F5479. OLD64: 89708936C54DFD66 Time : 1645841.513 sec
24737*2^25303807+1 is not prime. RES64: D9EA2B7B6E6AF02E. OLD64: 8DBE82724B40D085 Time : 1651506.316 sec.
55459*2^25301638+1 is not prime. RES64: 015CC4F32ADE2132. OLD64: 04164ED9809A6391 Time : 1642513.531 sec.

It's actually a good thing you asked. Normally, each of those lines should be the entire contents of the output from your task. This is the actual content from one of yours:

Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
Error writing intermediate file: z3193707
55459*2^25301638+1 is not prime. RES64: 015CC4F32ADE2132. OLD64: 04164ED9809A6391 Time : 1642513.531 sec.

(All three tasks showed the same behavior.)

Those error messages are reporting the failure to write the checkpoint file to disk. Without a checkpoint file, the task needs to run uninterrupted from beginning to end. Any interruption and either the task will need to start over at the beginning, or the task will fail.

This is not an expected behavior, and is often a symptom of a faulty BOINC installation, although there are many potential causes.
____________
My lucky number is 75898524288+1

Baumann Eduard

Joined: 24 May 18
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Message 118670 - Posted: 15 Jun 2018 | 14:34:13 UTC - in response to Message 118668.

Thanks very much.

What ist RES64 and
OLD64?

Michael Goetz
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Message 118672 - Posted: 15 Jun 2018 | 14:46:43 UTC - in response to Message 118670.

Thanks very much.

What ist RES64 and
OLD64?

Yes, it's hexadecimal. RES64 and OLD64 are merely different ways of tabulating the residue.

In case I wasn't clear enough in my first reply, there's a problem on your computer that you really should remedy. Especially with such an old and slow computer where many days are invested in each SoB task, it would be a shame to needlessly have tasks failing after many days of computation.
____________
My lucky number is 75898524288+1

Baumann Eduard

Joined: 24 May 18
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Credit: 911,179
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Message 118899 - Posted: 21 Jun 2018 | 21:13:05 UTC

I have finished my 4th task
llrSOB_284807112_1

It has been validated.

Can I have the result, my RES64 ?

To receive this result is not yet automated.

Can I find it myself somewhere?

Michael Goetz
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Message 118901 - Posted: 21 Jun 2018 | 21:39:59 UTC - in response to Message 118899.

I have finished my 4th task
llrSOB_284807112_1

It has been validated.

Can I have the result, my RES64 ?

To receive this result is not yet automated.

Can I find it myself somewhere?

It's of no particular value to anyone, so no, we don't make it available automatically. When I gave you the other residues that was to satisfy your curiosity, but that was a one-time occurance.

____________
My lucky number is 75898524288+1

robish
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Message 118903 - Posted: 21 Jun 2018 | 23:25:03 UTC - in response to Message 118668.

21181*2^25307132+1 is not prime. RES64: 2DD02DBCEC6F5479. OLD64: 89708936C54DFD66 Time : 1645841.513 sec

So is this the kind of output that you see that prompts an actual prime check Michael?, except it's "xxxxx*2^25307132+1 IS prime?

Do you receive and email or some alert or do you have to scan the logs by eye?
Always wondered how the excitement starts :)

Cheers

Rob

____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

JimB
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Message 118906 - Posted: 22 Jun 2018 | 3:00:46 UTC - in response to Message 118899.

I have finished my 4th task
llrSOB_284807112_1

It has been validated.

Can I have the result, my RES64 ?

To receive this result is not yet automated.

Can I find it myself somewhere?

To find the residue yourself, when the job is about to finish suspend network activity under the Activity menu (this is in the BOINC client on your computer). In the PrimeGrid project directory of the BOINC client there are a bunch of files.

For example, I tested with an SGS job. The result name was llrSGS_302227713_1. I have a file:
llrSGS_302227713 wrote:
100000000000:T:0:2:3
4012715779107 1290000

That means the candidate is 4012715779107*2^1290000-1. If and only if that candidate tests as prime, LLR will then test 4012715779107*2^1290000+1 looking for a twin prime.

When that job finishes there is another file
llrSGS_302227713_1_0 wrote:
4012715779107*2^1290000-1 is not prime. LLR Res64: FACFBD5B49873D54 Time : 756.950 sec.

Turn network activity on again so that result uploads and the client then reports that job as completed.

Michael Goetz
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Message 118907 - Posted: 22 Jun 2018 | 3:22:15 UTC - in response to Message 118903.

So is this the kind of output that you see that prompts an actual prime check Michael?, except it's "xxxxx*2^25307132+1 IS prime?

It would look something like this:

1071*2^3523944+1 is prime! (1060816 decimal digits) Time : 1328.400 sec.

Yes.
____________
My lucky number is 75898524288+1

JimB
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Message 118908 - Posted: 22 Jun 2018 | 3:26:33 UTC - in response to Message 118903.

21181*2^25307132+1 is not prime. RES64: 2DD02DBCEC6F5479. OLD64: 89708936C54DFD66 Time : 1645841.513 sec

So is this the kind of output that you see that prompts an actual prime check Michael?, except it's "xxxxx*2^25307132+1 IS prime?

Do you receive and email or some alert or do you have to scan the logs by eye?
Always wondered how the excitement starts :)

Cheers

Rob

There's an admin screen that lists all current primes, even those where only a single result is returned so far. It also shows all the false primes. For example there are currently two Woodall primes showing. I know they're false because the same computer returned both of them. That screen also shows when those primes are disproven. Hosts that have disproven primes show up in a different color so we know to not to get excited about any new primes they return.

When we get two matching results and the validator gets that workunit, it sends out emails to the admins about conjecture and GFN primes. For most conjectures, we've known about new primes for days before because of the prime list page.

There's also a prime reporting page where primes are reported to the Top 5000 Primes site. That process was never completely automated, but the prime reporting page does all the grunt work involved in reporting primes. It keeps track of T5K accounts and proof codes, for example. That prime reporting page also sends out emails to users after their primes are reported.

Michael Goetz
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Message 118909 - Posted: 22 Jun 2018 | 3:38:32 UTC

CLARIFICATION:

I did not offer to provide residues to anyone who PMs me. As far as I am aware there's no reason anyone needs this information, and I am not going to manually look them up for everyone running tasks here.

I answered one person's question -- in public -- so that he and others could see what the results look like, as an example. The actual results of individual tasks, once they've been validated, are of no value or interest to anyone. (Unless, of course, they're prime, but we notify you when there's a prime.)

If -- and only if -- you think you have a legitimate reason why you need this information, then please send me a private message explaining this need.

____________
My lucky number is 75898524288+1

Eudy Silva

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Message 118910 - Posted: 22 Jun 2018 | 3:58:40 UTC - in response to Message 118908.

JimB wrote:
There's an admin screen that lists ...

Thanks for the explanation.
It's nice to have an idea of how these things happen.

robish
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Message 118913 - Posted: 22 Jun 2018 | 7:30:18 UTC - in response to Message 118910.

JimB wrote:
There's an admin screen that lists ...

Thanks for the explanation.
It's nice to have an idea of how these things happen.

Thanks Jim and Michael. Totally agree with Eudy, the background is facinating for us on this side. No idea why really. Just mysterious I guess. Nice to have a feel for it now.

Cheers

Rob.
____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

Message boards : Seventeen or Bust : Can I have "my" residues"?