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Old 2022-07-27, 14:36   #1
mrk74
 
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Default Rhyme or reason to PRP-CERT?

Is there any set timing to when CERT's come up? I've had 5 in the last 2 weeks at very odd intervals. Got one. Didn't have one for another 4 days Went 6 days before another one popped up and have had 3 in 2 days. And the numbers have been VERY spread apart. 3 @ 13M and 2 @ 110M

Last fiddled with by mrk74 on 2022-07-27 at 14:39 Reason: Added info
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Old 2022-07-28, 22:06   #2
Uncwilly
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It depends on when they are available (when someone turns in the VDF file) and when your machine asks if any are available. There is a goodly crowd doing certs so they get picked up fairly quickly. Also, you may have a limit set on how much cert work you get.
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Old 2022-07-28, 22:17   #3
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Certs are far faster than PRP test for the same exponent, by a factor of about 2ProofPower. Optimal proof power is ~9 for PRP DC (~62M), ~10 for PRP first test wavefronts (~110M). So one might expect to spend about 0.1% of the time doing CERTs at first test wavefront, 99.9% PRP. That's less than 3/4 hour of CERT time per month of continuous running. Much smaller than ~62M, such as 13M, is probably a PRP-CF Cert.
Most proofs get processed automatically into Cert assignments and issued to the next available qualified mprime/prime95 clients (sufficient reliability and speed) that will accept them (user configuration allows it).
Proofs for exponents above ~595.8M are not handled automatically, due to the PrimeNet server CPU(s) being SSE2 and so limited to 32M fft length. Certs requiring above some threshold level of work get listed in a forum thread (post 4) for volunteers to tackle. Both those cases require George to handle them manually. He does them in occasional batches, that might be weeks apart.

Last fiddled with by kriesel on 2022-07-28 at 22:26
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Old 2022-07-28, 22:34   #4
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Quote:
Originally Posted by kriesel View Post
Certs are far faster than PRP test for the same exponent
Which part of that post actually addresses the OP's actual question? They did not ask about the process in general.

Last fiddled with by Uncwilly on 2022-07-28 at 22:35
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Old 2022-07-28, 22:46   #5
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All of it. Understanding the process is a good thing. Understanding that Cert work is a tiny fraction of the total effort, that there are requirements to get the assignments, including lucky timing which you covered, and that most are handled automatically but some happen in occasional manually prepared batches, etc.
It's an addition, not a criticism, to what you posted.
To take your post 4 and the OP question "Is there any set timing to when CERT's come up?" literally, the only acceptable response might be: "No." Which seems likely to generate more questions in more posts.

Last fiddled with by kriesel on 2022-07-28 at 22:52
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Old 2022-07-29, 03:41   #6
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Quote:
Originally Posted by Uncwilly View Post
It depends on when they are available (when someone turns in the VDF file) and when your machine asks if any are available. There is a goodly crowd doing certs so they get picked up fairly quickly. Also, you may have a limit set on how much cert work you get.
I just have it on whatever the default is.

Quote:
Originally Posted by kriesel View Post
Certs are far faster than PRP test for the same exponent, by a factor of about 2ProofPower. Optimal proof power is ~9 for PRP DC (~62M), ~10 for PRP first test wavefronts (~110M). So one might expect to spend about 0.1% of the time doing CERTs at first test wavefront, 99.9% PRP. That's less than 3/4 hour of CERT time per month of continuous running. Much smaller than ~62M, such as 13M, is probably a PRP-CF Cert.
Most proofs get processed automatically into Cert assignments and issued to the next available qualified mprime/prime95 clients (sufficient reliability and speed) that will accept them (user configuration allows it).
Proofs for exponents above ~595.8M are not handled automatically, due to the PrimeNet server CPU(s) being SSE2 and so limited to 32M fft length. Certs requiring above some threshold level of work get listed in a forum thread (post 4) for volunteers to tackle. Both those cases require George to handle them manually. He does them in occasional batches, that might be weeks apart.
Yeah I have noticed they are pretty quick to do. No complaints there.

Question answered pretty much. Just in more detail than I was expecting. I guess I was expecting one might pop up a month or something like that.
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