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Message boards : General discussion : Long running work units

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Oliver Bell
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Joined: 15 Aug 15
Posts: 13
ID: 416073
Credit: 48,643,907
RAC: 0
321 LLR Silver: Earned 100,000 credits (353,009)Cullen LLR Amethyst: Earned 1,000,000 credits (1,210,593)ESP LLR Silver: Earned 100,000 credits (441,239)PPS LLR Silver: Earned 100,000 credits (107,829)PSP LLR Amethyst: Earned 1,000,000 credits (1,746,000)SoB LLR Ruby: Earned 2,000,000 credits (2,572,482)SR5 LLR Silver: Earned 100,000 credits (277,576)SGS LLR Bronze: Earned 10,000 credits (18,240)TRP LLR Silver: Earned 100,000 credits (297,363)Woodall LLR Amethyst: Earned 1,000,000 credits (1,082,308)PPS Sieve Jade: Earned 10,000,000 credits (11,650,176)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (197,863)TRP Sieve (suspended) Bronze: Earned 10,000 credits (29,795)GFN Sapphire: Earned 20,000,000 credits (28,659,433)
Message 89956 - Posted: 23 Nov 2015 | 11:18:46 UTC

I'm sure this has been asked before, and I should be able to find a thread on the topic, but I'm drawing a blank unfortunately.

I'm relatively new to PrimeGrid and I'm seeing my PC download work units that have no possibility of completing before the units expiry date, sometimes with a delta of several weeks.

What is the advice around how to handle these work units? If I let them run and they're submitted a month late is there any value at that point, either to the project or to my credit balance?

Many thanks,
Oliver

Anthony Ayiomamitis
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Joined: 19 Mar 15
Posts: 2952
ID: 386066
Credit: 1,050,813,117
RAC: 302,840
Discovered 1 mega primeFound 2 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,048,709)Cullen LLR Turquoise: Earned 5,000,000 credits (5,026,008)ESP LLR Turquoise: Earned 5,000,000 credits (5,098,225)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,127,156)PPS LLR Sapphire: Earned 20,000,000 credits (20,015,895)PSP LLR Sapphire: Earned 20,000,000 credits (20,069,940)SoB LLR Sapphire: Earned 20,000,000 credits (20,045,552)SR5 LLR Jade: Earned 10,000,000 credits (17,645,136)SGS LLR Turquoise: Earned 5,000,000 credits (5,129,290)TRP LLR Turquoise: Earned 5,000,000 credits (5,050,008)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,520)321 Sieve (suspended) Double Bronze: Earned 100,000,000 credits (102,500,323)Generalized Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (100,500,349)PPS Sieve Double Silver: Earned 200,000,000 credits (243,349,119)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (14,516,062)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,329,228)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,185,540)GFN Double Bronze: Earned 100,000,000 credits (139,364,096)WW Double Bronze: Earned 100,000,000 credits (100,228,000)PSA Double Bronze: Earned 100,000,000 credits (116,531,700)
Message 89957 - Posted: 23 Nov 2015 | 12:37:04 UTC - in response to Message 89956.
Last modified: 23 Nov 2015 | 12:37:35 UTC

The various executables have been modified to check on running tasks and to modify the deadlines as the need arises. Any work unit not started by the deadline will automatically be deleted and reassigned.

Either way you will not lose credit for credit started/in progress and/or for deleted units not started by the reporting deadline.

Aldo, you may wish to look into your BOINC settings in relation to how much should be downloaded since it also impacts possible discoveries and whether you are the first or simply the wingman.

Finally, the project preferences (left side of the page) will provide you with a good estimate of the runtime for the various subprojects.

mackerelProject donor
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Joined: 2 Oct 08
Posts: 2584
ID: 29980
Credit: 550,654,016
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Discovered 6 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 5 primes in the 2019 Tour de PrimesFound 6 primes in the 2020 Tour de PrimesFound 5 primes in the 2021 Tour de PrimesFound 1 prime in the 2022 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,736,922)Cullen LLR Turquoise: Earned 5,000,000 credits (5,903,451)ESP LLR Turquoise: Earned 5,000,000 credits (7,207,880)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,714,227)PPS LLR Double Bronze: Earned 100,000,000 credits (119,960,737)PSP LLR Jade: Earned 10,000,000 credits (16,676,406)SoB LLR Sapphire: Earned 20,000,000 credits (20,019,367)SR5 LLR Sapphire: Earned 20,000,000 credits (26,030,253)SGS LLR Turquoise: Earned 5,000,000 credits (7,361,220)TPS LLR (retired) Bronze: Earned 10,000 credits (34,130)TRP LLR Sapphire: Earned 20,000,000 credits (35,623,812)Woodall LLR Turquoise: Earned 5,000,000 credits (8,171,820)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,236,219)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,383,853)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,626,419)PPS Sieve Emerald: Earned 50,000,000 credits (76,969,144)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,293,882)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,757)AP 26/27 Sapphire: Earned 20,000,000 credits (27,813,588)GFN Emerald: Earned 50,000,000 credits (90,898,231)WW Sapphire: Earned 20,000,000 credits (34,040,000)PSA Ruby: Earned 2,000,000 credits (2,939,755)
Message 89958 - Posted: 23 Nov 2015 | 12:42:53 UTC - in response to Message 89956.

There is a trickle mechanism implemented so that, as long as units are in progress, the deadline can be extended quite generously. These tasks aren't really time dependant so there isn't a problem as such with returning late units.

Note that the time estimates in boinc can be quite a lot out before the unit is running. So they might not be as bad as seem once they get going.

Looking at the computer info, it looks like the processor is reasonable. The biggest CPU LLR unit is the Seventeen or Bust, and that'll take perhaps in the ball park of 2 days continuous running. The others are shorter but will still take a long time.

I'm not familiar with the CPU genefer unit, but suspect that could take a long time to run.

If you don't fancy waiting to see if they make it or not, you can just abort the units before they start. Before that, I'd suggest also going into the project options, where you can select which subprojects to run. The description indicates an average runtime for guidance. So if you prefer shorter units, you can just select those. Note that due to various bonuses, you generally get more credit per unit time if you do longer units.

Oliver Bell
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Joined: 15 Aug 15
Posts: 13
ID: 416073
Credit: 48,643,907
RAC: 0
321 LLR Silver: Earned 100,000 credits (353,009)Cullen LLR Amethyst: Earned 1,000,000 credits (1,210,593)ESP LLR Silver: Earned 100,000 credits (441,239)PPS LLR Silver: Earned 100,000 credits (107,829)PSP LLR Amethyst: Earned 1,000,000 credits (1,746,000)SoB LLR Ruby: Earned 2,000,000 credits (2,572,482)SR5 LLR Silver: Earned 100,000 credits (277,576)SGS LLR Bronze: Earned 10,000 credits (18,240)TRP LLR Silver: Earned 100,000 credits (297,363)Woodall LLR Amethyst: Earned 1,000,000 credits (1,082,308)PPS Sieve Jade: Earned 10,000,000 credits (11,650,176)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (197,863)TRP Sieve (suspended) Bronze: Earned 10,000 credits (29,795)GFN Sapphire: Earned 20,000,000 credits (28,659,433)
Message 89960 - Posted: 23 Nov 2015 | 14:56:10 UTC - in response to Message 89958.

Thanks both. No concerns no the units taking a long time to run, so long as it is with purpose. It was a one of the recent world record units that rang bells for me, claiming it would take 230+ days to run, with a deadline around 45 days out.

I'll let them run.

Profile Pooh Bear 27Project donor
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Joined: 10 May 09
Posts: 787
ID: 39821
Credit: 1,457,424,185
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Discovered 2 mega primesEliminated 1 conjecture "k"Discovered 1 twin prime2022 Tour de Primes largest primeFound 1 prime in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,709,103)Cullen LLR Turquoise: Earned 5,000,000 credits (7,681,452)ESP LLR Turquoise: Earned 5,000,000 credits (5,421,149)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,267,839)PPS LLR Sapphire: Earned 20,000,000 credits (24,198,975)PSP LLR Jade: Earned 10,000,000 credits (12,783,817)SoB LLR Jade: Earned 10,000,000 credits (13,332,361)SR5 LLR Turquoise: Earned 5,000,000 credits (5,248,659)SGS LLR Turquoise: Earned 5,000,000 credits (6,878,856)TRP LLR Jade: Earned 10,000,000 credits (11,153,506)Woodall LLR Turquoise: Earned 5,000,000 credits (9,224,032)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,000,977)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,843,367)PPS Sieve Emerald: Earned 50,000,000 credits (80,503,891)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,473,750)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,243,608)AP 26/27 Jade: Earned 10,000,000 credits (12,741,619)GFN Double Silver: Earned 200,000,000 credits (492,170,475)WW Double Gold: Earned 500,000,000 credits (728,504,000)PSA Turquoise: Earned 5,000,000 credits (5,042,125)
Message 89964 - Posted: 23 Nov 2015 | 17:45:56 UTC

One note, the server changes the date but the client does not. So if the unit gets near the date it will go into different states on your client that may make you think it's bad, but it is not. First it will go into a high priority mode, then it will go in a past due mode, but just keep on going. You can check the task on your account and should see the expiry date change there.

Oliver Bell
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Joined: 15 Aug 15
Posts: 13
ID: 416073
Credit: 48,643,907
RAC: 0
321 LLR Silver: Earned 100,000 credits (353,009)Cullen LLR Amethyst: Earned 1,000,000 credits (1,210,593)ESP LLR Silver: Earned 100,000 credits (441,239)PPS LLR Silver: Earned 100,000 credits (107,829)PSP LLR Amethyst: Earned 1,000,000 credits (1,746,000)SoB LLR Ruby: Earned 2,000,000 credits (2,572,482)SR5 LLR Silver: Earned 100,000 credits (277,576)SGS LLR Bronze: Earned 10,000 credits (18,240)TRP LLR Silver: Earned 100,000 credits (297,363)Woodall LLR Amethyst: Earned 1,000,000 credits (1,082,308)PPS Sieve Jade: Earned 10,000,000 credits (11,650,176)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (197,863)TRP Sieve (suspended) Bronze: Earned 10,000 credits (29,795)GFN Sapphire: Earned 20,000,000 credits (28,659,433)
Message 90153 - Posted: 2 Dec 2015 | 8:36:41 UTC - in response to Message 89964.
Last modified: 2 Dec 2015 | 8:36:55 UTC

Thanks for that.

One more question.

If I set the "store at least" parameter to a small number of days does that have any effect on the specific work units that my client will download? i.e. if I set the client to store at least seven days of work will I still recieve the longer running work units that I'm looking for?

I'm guessing that the answer is in the "store at least" text, but it would be useful to confirm.

Cheers,
Oliver

Profile Michael GoetzProject donor
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The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 2 mega primesFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 1 mega prime in the 2022 Tour de PrimesFound 1 prime in the 2022 Tour de Primes Mountain Stage321 LLR Turquoise: Earned 5,000,000 credits (6,638,389)Cullen LLR Turquoise: Earned 5,000,000 credits (5,038,114)ESP LLR Turquoise: Earned 5,000,000 credits (6,177,890)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,094,541)PPS LLR Sapphire: Earned 20,000,000 credits (23,642,050)PSP LLR Turquoise: Earned 5,000,000 credits (7,956,186)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (12,645,567)SGS LLR Turquoise: Earned 5,000,000 credits (5,037,630)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Turquoise: Earned 5,000,000 credits (5,032,821)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,061,196)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (22,885,121)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Jade: Earned 10,000,000 credits (10,902,645)GFN Emerald: Earned 50,000,000 credits (92,455,703)WW Emerald: Earned 50,000,000 credits (65,888,000)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 90156 - Posted: 2 Dec 2015 | 9:42:30 UTC - in response to Message 90153.

Thanks for that.

One more question.

If I set the "store at least" parameter to a small number of days does that have any effect on the specific work units that my client will download? i.e. if I set the client to store at least seven days of work will I still recieve the longer running work units that I'm looking for?

I'm guessing that the answer is in the "store at least" text, but it would be useful to confirm.

Cheers,
Oliver


That has no effect at all on which type of tasks you get. You select the type of task on the PrimGrid preferences webpage.
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Message boards : General discussion : Long running work units

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