PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise

Advanced search

Message boards : Problems and Help : Tasks fetched 2 minutes before previous ends

Author Message
Profile BurProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Feb 20
Posts: 461
ID: 1241833
Credit: 278,749,731
RAC: 674,321
321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Amethyst: Earned 1,000,000 credits (1,846,629)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,202,156)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,012,677)AP 26/27 Ruby: Earned 2,000,000 credits (3,731,689)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 144530 - Posted: 21 Oct 2020 | 17:40:54 UTC

I noticed that BOINC fetches a new GFN GPU task about 2 minutes to 2:30 before the current one ends. Since the tasks only take about 6-7 minutes that has an impact on my first rate. So I'd like BOINC to only get a new task once the other is finished, or maybe 10-20 seconds before ETA.

I have "get work for xx days" set to 0.00005 which would be a few seconds. Is there any way to prevent prefetching entirely?
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

Profile Buckeye4lfProject donor
Avatar
Send message
Joined: 27 Apr 20
Posts: 80
ID: 1257095
Credit: 919,116,662
RAC: 1,465,592
Discovered 3 mega primesFound 6 primes in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,150,932)Cullen LLR Turquoise: Earned 5,000,000 credits (5,042,112)ESP LLR Ruby: Earned 2,000,000 credits (4,408,727)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (3,421,558)PPS LLR Sapphire: Earned 20,000,000 credits (24,585,353)PSP LLR Turquoise: Earned 5,000,000 credits (5,474,465)SoB LLR Turquoise: Earned 5,000,000 credits (6,735,460)SR5 LLR Turquoise: Earned 5,000,000 credits (5,821,229)SGS LLR Amethyst: Earned 1,000,000 credits (1,641,764)TRP LLR Ruby: Earned 2,000,000 credits (3,457,276)Woodall LLR Ruby: Earned 2,000,000 credits (4,299,979)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,338,445)PPS Sieve Double Bronze: Earned 100,000,000 credits (165,121,693)AP 26/27 Double Bronze: Earned 100,000,000 credits (103,719,122)GFN Double Silver: Earned 200,000,000 credits (355,564,160)WW Double Bronze: Earned 100,000,000 credits (184,404,000)PSA Jade: Earned 10,000,000 credits (19,959,977)
Message 144532 - Posted: 21 Oct 2020 | 17:54:29 UTC - in response to Message 144530.

I noticed that BOINC fetches a new GFN GPU task about 2 minutes to 2:30 before the current one ends. Since the tasks only take about 6-7 minutes that has an impact on my first rate. So I'd like BOINC to only get a new task once the other is finished, or maybe 10-20 seconds before ETA.

I have "get work for xx days" set to 0.00005 which would be a few seconds. Is there any way to prevent prefetching entirely?


Set to 0 days, I believe Boinc estimates when task will finish so I suspect jobs are just taking a bit longer than the estimated complete. Fetching jobs should not affect current computation time to my knowledge.
____________

Profile NickProject donor
Avatar
Send message
Joined: 11 Jul 11
Posts: 997
ID: 105020
Credit: 2,695,500,371
RAC: 8,846,158
Discovered 8 mega primesFound 5 primes in the 2020 Tour de PrimesFound 2 mega primes in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 2 mega primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,020,701)Cullen LLR Sapphire: Earned 20,000,000 credits (20,174,451)ESP LLR Sapphire: Earned 20,000,000 credits (23,496,803)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,197,125)PPS LLR Emerald: Earned 50,000,000 credits (61,332,778)PSP LLR Emerald: Earned 50,000,000 credits (51,069,305)SoB LLR Sapphire: Earned 20,000,000 credits (32,022,788)SR5 LLR Sapphire: Earned 20,000,000 credits (20,183,763)SGS LLR Sapphire: Earned 20,000,000 credits (20,482,069)TRP LLR Sapphire: Earned 20,000,000 credits (20,307,419)Woodall LLR Sapphire: Earned 20,000,000 credits (22,371,625)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,380,527)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (744,531)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,007,004)PPS Sieve Double Gold: Earned 500,000,000 credits (575,268,110)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,181)AP 26/27 Sapphire: Earned 20,000,000 credits (20,845,708)GFN Double Silver: Earned 200,000,000 credits (481,090,484)WW Double Amethyst: Earned 1,000,000,000 credits (1,280,892,000)
Message 144533 - Posted: 21 Oct 2020 | 17:55:48 UTC - in response to Message 144530.
Last modified: 21 Oct 2020 | 18:46:37 UTC

In Primegrid Preferences:
Resource share = 0 (or blank)
I think this may negate any 'get work for xx days' setting.
I am not sure what happens if you are running more than one project.
Edit: I forgot that I'm running Boinc version 7.14.2 - that detail is important

zombie67 [MM]Project donor
Volunteer tester
Avatar
Send message
Joined: 30 Nov 06
Posts: 275
ID: 4065
Credit: 2,384,740,141
RAC: 2,237,093
Discovered 15 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 3 primes in the 2021 Tour de PrimesFound 3 mega primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (21,010,681)Cullen LLR Sapphire: Earned 20,000,000 credits (20,613,801)ESP LLR Sapphire: Earned 20,000,000 credits (23,806,515)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,802,325)PPS LLR Double Bronze: Earned 100,000,000 credits (101,006,389)PSP LLR Sapphire: Earned 20,000,000 credits (34,959,281)SoB LLR Sapphire: Earned 20,000,000 credits (21,425,737)SR5 LLR Emerald: Earned 50,000,000 credits (50,781,177)SGS LLR Sapphire: Earned 20,000,000 credits (20,157,727)TRP LLR Sapphire: Earned 20,000,000 credits (22,255,355)Woodall LLR Sapphire: Earned 20,000,000 credits (20,056,234)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,559,131)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,297,856)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,711,622)PPS Sieve Double Gold: Earned 500,000,000 credits (652,697,901)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (11,707,274)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,316,578)AP 26/27 Double Silver: Earned 200,000,000 credits (213,374,973)GFN Double Gold: Earned 500,000,000 credits (514,366,019)WW Double Gold: Earned 500,000,000 credits (501,784,000)PSA Emerald: Earned 50,000,000 credits (52,054,411)
Message 144538 - Posted: 21 Oct 2020 | 18:43:11 UTC

This is a "feature" added to the BOINC client recently. See this thread:

http://www.primegrid.com/forum_thread.php?id=9110

You will have to revert to an older version of the BOINC client to stop the pre-fetching. Older versions can be found here:

https://boinc.berkeley.edu/dl/?C=M;O=D
____________
Reno, NV

Profile BurProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Feb 20
Posts: 461
ID: 1241833
Credit: 278,749,731
RAC: 674,321
321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Amethyst: Earned 1,000,000 credits (1,846,629)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,202,156)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,012,677)AP 26/27 Ruby: Earned 2,000,000 credits (3,731,689)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 144559 - Posted: 22 Oct 2020 | 7:58:26 UTC - in response to Message 144538.

Fetching jobs should not affect current computation time to my knowledge.
That's true, but it affects if I'm first to report or not. If I start to compute 2 minutes earlier, the task is reported 2 minutes earlier. And with these tasks taking only 7 minutes, that's quite a difference.

This is a "feature" added to the BOINC client recently. See this thread:
Too bad, so I'll have to downgrade at least on that computer. It might be that PG is the only project where pre-fetching would be a problem, so it's unlikely they'll an an option to disable it.
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

Profile mikey
Avatar
Send message
Joined: 17 Mar 09
Posts: 1288
ID: 37043
Credit: 533,290,723
RAC: 139
Discovered 1 mega prime321 LLR Ruby: Earned 2,000,000 credits (2,038,739)Cullen LLR Ruby: Earned 2,000,000 credits (2,074,615)ESP LLR Ruby: Earned 2,000,000 credits (2,243,517)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,142,353)PPS LLR Turquoise: Earned 5,000,000 credits (7,292,665)PSP LLR Ruby: Earned 2,000,000 credits (2,232,103)SoB LLR Ruby: Earned 2,000,000 credits (2,934,612)SR5 LLR Ruby: Earned 2,000,000 credits (2,053,250)SGS LLR Turquoise: Earned 5,000,000 credits (5,152,318)TRP LLR Ruby: Earned 2,000,000 credits (2,405,015)Woodall LLR Ruby: Earned 2,000,000 credits (2,014,811)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (23,770,672)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (944,431)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,813,253)PPS Sieve Double Silver: Earned 200,000,000 credits (342,048,709)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,446,797)AP 26/27 Sapphire: Earned 20,000,000 credits (33,140,471)GFN Sapphire: Earned 20,000,000 credits (49,299,387)WW Turquoise: Earned 5,000,000 credits (7,792,000)PSA Sapphire: Earned 20,000,000 credits (20,457,430)
Message 144569 - Posted: 22 Oct 2020 | 10:57:18 UTC - in response to Message 144559.
Last modified: 22 Oct 2020 | 10:58:05 UTC

This is a "feature" added to the BOINC client recently. See this thread:


Too bad, so I'll have to downgrade at least on that computer. It might be that PG is the only project where pre-fetching would be a problem, so it's unlikely they'll an an option to disable it.


Be careful when downgrading I'm not sure any existing tasks will carry over from any project. Upgrading is not usually a problem but downgrading can be more problematic. Zombie is better at remembering that kind of stuff than I am.

zombie67 [MM]Project donor
Volunteer tester
Avatar
Send message
Joined: 30 Nov 06
Posts: 275
ID: 4065
Credit: 2,384,740,141
RAC: 2,237,093
Discovered 15 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 3 primes in the 2021 Tour de PrimesFound 3 mega primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (21,010,681)Cullen LLR Sapphire: Earned 20,000,000 credits (20,613,801)ESP LLR Sapphire: Earned 20,000,000 credits (23,806,515)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,802,325)PPS LLR Double Bronze: Earned 100,000,000 credits (101,006,389)PSP LLR Sapphire: Earned 20,000,000 credits (34,959,281)SoB LLR Sapphire: Earned 20,000,000 credits (21,425,737)SR5 LLR Emerald: Earned 50,000,000 credits (50,781,177)SGS LLR Sapphire: Earned 20,000,000 credits (20,157,727)TRP LLR Sapphire: Earned 20,000,000 credits (22,255,355)Woodall LLR Sapphire: Earned 20,000,000 credits (20,056,234)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,559,131)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,297,856)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,711,622)PPS Sieve Double Gold: Earned 500,000,000 credits (652,697,901)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (11,707,274)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,316,578)AP 26/27 Double Silver: Earned 200,000,000 credits (213,374,973)GFN Double Gold: Earned 500,000,000 credits (514,366,019)WW Double Gold: Earned 500,000,000 credits (501,784,000)PSA Emerald: Earned 50,000,000 credits (52,054,411)
Message 144576 - Posted: 22 Oct 2020 | 12:55:33 UTC

When I downgrade, I just run the installer of the older version without uninstalling the newer version first. I've never lost any tasks.

I am not sure what happens to tasks if you uninstall the current version and then install the older version. Perhaps that is when you have lost tasks?

In any case, since he is running zero cache anyway, then I suggest just running dry and then downgrade. Just to be sure.
____________
Reno, NV

Profile BurProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Feb 20
Posts: 461
ID: 1241833
Credit: 278,749,731
RAC: 674,321
321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Amethyst: Earned 1,000,000 credits (1,846,629)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,202,156)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,012,677)AP 26/27 Ruby: Earned 2,000,000 credits (3,731,689)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 144602 - Posted: 22 Oct 2020 | 16:08:42 UTC - in response to Message 144576.

Thanks for the suggestions, I'll wait until the challenge is over and then do the downgrade.

Is it possible that PG admins contact BOINC developers about an option to disable the pre-fetching? I can't think of any scenario other than PG's doublechecking where pre-fetching would be a problem, so unless someone important asks for that, it might not be done.
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

Profile Crystal PelletProject donor
Avatar
Send message
Joined: 9 Nov 08
Posts: 184
ID: 31494
Credit: 84,794,529
RAC: 110
321 LLR Amethyst: Earned 1,000,000 credits (1,556,899)Cullen LLR Gold: Earned 500,000 credits (882,456)ESP LLR Amethyst: Earned 1,000,000 credits (1,205,866)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (241,969)PPS LLR Ruby: Earned 2,000,000 credits (2,948,469)PSP LLR Ruby: Earned 2,000,000 credits (2,374,435)SoB LLR Amethyst: Earned 1,000,000 credits (1,749,624)SR5 LLR Gold: Earned 500,000 credits (895,184)SGS LLR Amethyst: Earned 1,000,000 credits (1,487,850)TRP LLR Amethyst: Earned 1,000,000 credits (1,787,802)Woodall LLR Silver: Earned 100,000 credits (118,189)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,061)Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (14,643,949)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (3,494,619)PPS Sieve Sapphire: Earned 20,000,000 credits (31,391,649)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,208,890)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,080,539)AP 26/27 Gold: Earned 500,000 credits (507,329)GFN Turquoise: Earned 5,000,000 credits (8,110,482)WW Silver: Earned 100,000 credits (108,000)
Message 144610 - Posted: 22 Oct 2020 | 17:08:49 UTC - in response to Message 144602.

After upgrading my BOINC client is pre-fetching work (downloading a new WU when the current one is at ~90%) even though "resource share" and "maintain enough work for" is both set to zero.
Anybody else experience this? Any way to disable that?

Adding to this discussion.

The new work_fetch policy is 180 seconds + least work buffer + additional work buffer.
Since BOINC client's procedure "work_fetch" is running every 60 seconds and when using 0 + 0 (zero) buffer, work will be requested between 120 and 180 seconds before 1 core will run idle.
____________

Profile VatoProject donor
Volunteer tester
Avatar
Send message
Joined: 2 Feb 08
Posts: 797
ID: 18447
Credit: 407,164,286
RAC: 396,499
Found 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (3,796,435)Cullen LLR Turquoise: Earned 5,000,000 credits (5,144,889)ESP LLR Turquoise: Earned 5,000,000 credits (5,016,107)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,449,040)PPS LLR Jade: Earned 10,000,000 credits (19,711,707)PSP LLR Turquoise: Earned 5,000,000 credits (5,872,604)SoB LLR Turquoise: Earned 5,000,000 credits (6,915,009)SR5 LLR Ruby: Earned 2,000,000 credits (3,060,262)SGS LLR Ruby: Earned 2,000,000 credits (4,649,648)TPS LLR (retired) Silver: Earned 100,000 credits (103,523)TRP LLR Ruby: Earned 2,000,000 credits (3,488,115)Woodall LLR Turquoise: Earned 5,000,000 credits (5,002,649)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (26,923,188)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,119,699)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,278,995)PPS Sieve Emerald: Earned 50,000,000 credits (50,357,616)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,080,177)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,221,054)AP 26/27 Sapphire: Earned 20,000,000 credits (45,325,881)GFN Emerald: Earned 50,000,000 credits (61,435,433)WW Double Bronze: Earned 100,000,000 credits (100,012,000)PSA Sapphire: Earned 20,000,000 credits (34,214,582)
Message 144616 - Posted: 22 Oct 2020 | 19:28:09 UTC

There is another scenario where the new pre-fetch behaviour is undesirable, but it doesn't apply here at PG.

If you are running a project with zero cache and that project only allows 1 WU per core (or per GPU) and uses a backoff timer longer than 3 minutes, the pre-fetch fails to get new work, and then has to wait for the backoff timer to expire with no work on that core.

BOINC client should put the behaviour back the way it was.
____________

HonzaProject donor
Volunteer moderator
Volunteer tester
Project scientist
Send message
Joined: 15 Aug 05
Posts: 1909
ID: 352
Credit: 4,363,079,672
RAC: 5,170,255
Discovered 8 mega primesEliminated 4 conjecture "k"sFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes largest primeFound 4 primes in the 2019 Tour de PrimesFound 1 mega prime in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain StageFound 1 prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 1 mega prime in the 2021 Tour de PrimesFound 1 prime in the 2021 Tour de Primes Mountain Stage321 LLR Double Bronze: Earned 100,000,000 credits (100,425,701)Cullen LLR Double Bronze: Earned 100,000,000 credits (101,538,484)ESP LLR Double Bronze: Earned 100,000,000 credits (100,642,296)Generalized Cullen/Woodall LLR Double Bronze: Earned 100,000,000 credits (100,612,558)PPS LLR Double Bronze: Earned 100,000,000 credits (155,825,357)PSP LLR Emerald: Earned 50,000,000 credits (77,432,502)SoB LLR Double Bronze: Earned 100,000,000 credits (113,220,736)SR5 LLR Double Bronze: Earned 100,000,000 credits (101,883,529)SGS LLR Emerald: Earned 50,000,000 credits (55,593,166)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Double Bronze: Earned 100,000,000 credits (100,338,924)Woodall LLR Emerald: Earned 50,000,000 credits (50,956,094)321 Sieve (suspended) Double Bronze: Earned 100,000,000 credits (115,948,450)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,142,109)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (50,504,945)PPS Sieve Double Gold: Earned 500,000,000 credits (513,057,580)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,288,222)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,149,354)AP 26/27 Double Silver: Earned 200,000,000 credits (232,724,773)GFN Double Gold: Earned 500,000,000 credits (789,218,857)WW Double Amethyst: Earned 1,000,000,000 credits (1,023,324,000)PSA Double Gold: Earned 500,000,000 credits (535,232,795)
Message 144632 - Posted: 23 Oct 2020 | 8:03:12 UTC

Vato, good point.

I would like to see option in Options / Computing prefereces / other.
Something like "Work pre-fetch" in second with some default value and explanation "prevent CPU/GPU starvation".

Sometimes it's useful to pre-fetch, sometimes it's harmful, sometimes is behaves just stupid (see Vato scenario) and there seems to be not a one way to fit all scenarios.

Downgrading is not a long-term "solution".
Nor having forks of BOINC client like in the old days.

I know this is for discussion on BOINC forum in order to get it implemented.

____________
My stats
Badge score: 1*1 + 5*1 + 8*3 + 9*11 + 10*1 + 11*1 + 12*3 = 186

Profile BurProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Feb 20
Posts: 461
ID: 1241833
Credit: 278,749,731
RAC: 674,321
321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Amethyst: Earned 1,000,000 credits (1,846,629)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,202,156)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,012,677)AP 26/27 Ruby: Earned 2,000,000 credits (3,731,689)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 144650 - Posted: 23 Oct 2020 | 16:12:38 UTC

Now with LLR2 it's less problamatic, but for the others it matters (if you care about 1st, but honestly, who doesn't ;)).

For fast GPUs or short GFN tasks these 2 minutes really make a big difference in send/receive duration.
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

Profile MeFigaYoma
Volunteer tester
Send message
Joined: 8 Feb 15
Posts: 74
ID: 381234
Credit: 34,159,754
RAC: 48,762
321 LLR Ruby: Earned 2,000,000 credits (2,311,667)Cullen LLR Ruby: Earned 2,000,000 credits (2,508,034)ESP LLR Ruby: Earned 2,000,000 credits (2,025,600)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,227,818)PPS LLR Gold: Earned 500,000 credits (866,512)PSP LLR Ruby: Earned 2,000,000 credits (2,918,921)SoB LLR Ruby: Earned 2,000,000 credits (2,033,928)SR5 LLR Gold: Earned 500,000 credits (537,853)SGS LLR Amethyst: Earned 1,000,000 credits (1,575,108)TRP LLR Ruby: Earned 2,000,000 credits (2,024,298)Woodall LLR Ruby: Earned 2,000,000 credits (2,064,990)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,027,868)PPS Sieve Ruby: Earned 2,000,000 credits (4,904,805)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,011,010)AP 26/27 Ruby: Earned 2,000,000 credits (2,175,134)GFN Gold: Earned 500,000 credits (758,352)WW Ruby: Earned 2,000,000 credits (2,156,000)PSA Bronze: Earned 10,000 credits (32,893)
Message 144725 - Posted: 25 Oct 2020 | 17:23:56 UTC

Setting "Max # of simultaneous PrimeGrid tasks" in PrimeGrid preferences to the number of active tasks you want seems to prevent task prefetching.

Profile mikey
Avatar
Send message
Joined: 17 Mar 09
Posts: 1288
ID: 37043
Credit: 533,290,723
RAC: 139
Discovered 1 mega prime321 LLR Ruby: Earned 2,000,000 credits (2,038,739)Cullen LLR Ruby: Earned 2,000,000 credits (2,074,615)ESP LLR Ruby: Earned 2,000,000 credits (2,243,517)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,142,353)PPS LLR Turquoise: Earned 5,000,000 credits (7,292,665)PSP LLR Ruby: Earned 2,000,000 credits (2,232,103)SoB LLR Ruby: Earned 2,000,000 credits (2,934,612)SR5 LLR Ruby: Earned 2,000,000 credits (2,053,250)SGS LLR Turquoise: Earned 5,000,000 credits (5,152,318)TRP LLR Ruby: Earned 2,000,000 credits (2,405,015)Woodall LLR Ruby: Earned 2,000,000 credits (2,014,811)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (23,770,672)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (944,431)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,813,253)PPS Sieve Double Silver: Earned 200,000,000 credits (342,048,709)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,446,797)AP 26/27 Sapphire: Earned 20,000,000 credits (33,140,471)GFN Sapphire: Earned 20,000,000 credits (49,299,387)WW Turquoise: Earned 5,000,000 credits (7,792,000)PSA Sapphire: Earned 20,000,000 credits (20,457,430)
Message 144731 - Posted: 25 Oct 2020 | 23:44:16 UTC - in response to Message 144725.

Setting "Max # of simultaneous PrimeGrid tasks" in PrimeGrid preferences to the number of active tasks you want seems to prevent task prefetching.


+1

Profile BurProject donor
Volunteer tester
Avatar
Send message
Joined: 25 Feb 20
Posts: 461
ID: 1241833
Credit: 278,749,731
RAC: 674,321
321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Amethyst: Earned 1,000,000 credits (1,846,629)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,202,156)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,012,677)AP 26/27 Ruby: Earned 2,000,000 credits (3,731,689)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 144749 - Posted: 26 Oct 2020 | 15:19:57 UTC
Last modified: 26 Oct 2020 | 15:41:35 UTC

Ah, thanks. That would explain why I didn't have the problem at first, even though 7.14.2 is from 2018. I used to have max# of tasks set in BOINC for that computer, but lifted it in preparation for the challenge.

I changed it back to 2 and it works.
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

Post to thread

Message boards : Problems and Help : Tasks fetched 2 minutes before previous ends

[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2021 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 3.48, 2.60, 1.71
Generated 17 Sep 2021 | 20:01:28 UTC