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Message boards : Problems and Help : Really Oversized program

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Michael Tillman
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Joined: 30 Jan 10
Posts: 1
ID: 54332
Credit: 12,367,071
RAC: 4,104
321 LLR Bronze: Earned 10,000 credits (74,712)Cullen LLR Silver: Earned 100,000 credits (158,559)PSP LLR Silver: Earned 100,000 credits (342,685)SoB LLR Silver: Earned 100,000 credits (462,930)TRP LLR Bronze: Earned 10,000 credits (43,956)Woodall LLR Silver: Earned 100,000 credits (281,456)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (32,799)PPS Sieve Ruby: Earned 2,000,000 credits (3,609,133)TRP Sieve (suspended) Bronze: Earned 10,000 credits (26,184)AP 26/27 Bronze: Earned 10,000 credits (92,989)GFN Turquoise: Earned 5,000,000 credits (7,221,067)
Message 60333 - Posted: 11 Dec 2012 | 23:44:23 UTC

I have a program that has over 2k hrs estimated for my processor. It is a 17 or bust 1.01 application with the name of IIr_sob_71248719_2. It has a report deadline of 1/15/2013. I am running about three minutes faster per 24hrs than estimated. Why do I have such a large program? It is already on high priority. I can't use my dual core 3.2ghz processor for almost anything else extensive like gaming.

Profile Michael GoetzProject donor
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Joined: 21 Jan 10
Posts: 13621
ID: 53948
Credit: 272,146,395
RAC: 254,314
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 1 mega primeFound 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 Primes321 LLR Ruby: Earned 2,000,000 credits (4,802,778)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Sapphire: Earned 20,000,000 credits (20,751,038)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,718,606)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,963,361)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 (10,118,303)WW Sapphire: Earned 20,000,000 credits (27,020,000)GFN Emerald: Earned 50,000,000 credits (77,916,132)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 60335 - Posted: 12 Dec 2012 | 1:30:52 UTC - in response to Message 60333.

I have a program that has over 2k hrs estimated for my processor. It is a 17 or bust 1.01 application with the name of IIr_sob_71248719_2. It has a report deadline of 1/15/2013. I am running about three minutes faster per 24hrs than estimated. Why do I have such a large program? It is already on high priority. I can't use my dual core 3.2ghz processor for almost anything else extensive like gaming.



Unless your CPU is running much slower than it should be, it will take nowhere near 2000 hours to complete that task. BOINC is notorious for having terrible estimated run times.

As the job progresses, you'll get a better sense of the actual run time by comparing the elapsed time with the percentage complete.
____________
My lucky number is 75898524288+1

Profile dancer42
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Joined: 15 Oct 12
Posts: 99
ID: 175439
Credit: 19,009,646
RAC: 0
321 LLR Bronze: Earned 10,000 credits (62,618)ESP LLR Bronze: Earned 10,000 credits (15,852)PPS LLR Silver: Earned 100,000 credits (125,666)PSP LLR Bronze: Earned 10,000 credits (19,267)SGS LLR Silver: Earned 100,000 credits (103,296)TRP LLR Silver: Earned 100,000 credits (112,889)PPS Sieve Jade: Earned 10,000,000 credits (18,092,157)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (104,278)TRP Sieve (suspended) Bronze: Earned 10,000 credits (56,210)GFN Silver: Earned 100,000 credits (292,992)
Message 60337 - Posted: 12 Dec 2012 | 3:13:39 UTC

17 or bust 1.01 application is looking for vary large primes as such completion

can be hard because of the vary long run time.

the last one I tried estimated 12,000 hr.

a system crash and reload interrupted the task and I was unable to recover it.

but it looked like about 4 1/2 days would have seen it done.

I will try another after solstice challenge.

any one know how much credit they are worth?

NeoMetal*
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Joined: 25 Mar 11
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Credit: 1,747,428,303
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Eliminated 1 conjecture "k"Found 1 prime in the 2018 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (7,698,294)Cullen LLR Turquoise: Earned 5,000,000 credits (6,655,866)ESP LLR Turquoise: Earned 5,000,000 credits (8,198,062)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,817,032)PPS LLR Jade: Earned 10,000,000 credits (10,016,096)PSP LLR Jade: Earned 10,000,000 credits (10,891,779)SoB LLR Jade: Earned 10,000,000 credits (11,111,741)SR5 LLR Turquoise: Earned 5,000,000 credits (7,278,494)SGS LLR Turquoise: Earned 5,000,000 credits (7,457,856)TRP LLR Turquoise: Earned 5,000,000 credits (7,714,186)Woodall LLR Turquoise: Earned 5,000,000 credits (5,726,778)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,094,130)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,628,594)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,040,865,445)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,235,150)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,376,844)AP 26/27 Jade: Earned 10,000,000 credits (11,615,539)GFN Double Silver: Earned 200,000,000 credits (427,593,017)PSA Double Bronze: Earned 100,000,000 credits (125,462,363)
Message 60354 - Posted: 12 Dec 2012 | 5:25:02 UTC
Last modified: 12 Dec 2012 | 5:31:26 UTC

The main reason that estimated times are off is because each PrimeGrid sub projects have wrong or outdated GFLOPs estimation that differ in each sub project causing the DCT (duration_correction_factor)
in BOINC's client_state.xml file to be off (sometimes dramatically). Ideally the DCT should be very close to 1.000 but when you run different sub projects, that value changes, skewing many other sub projects DCT (some are very far off) resulting in wrong ETC (estimated time to completion). If you run a single sub project long enough it will eventually slowly correct itself until ETC become much more accurate. But when you change to a different sub project then the ETC goes askew again. Running multiple sub projects at the same time will cause ALL sub projects to have varying amount skewing for each one.

This all can be corrected if PrimeGrid Administration would correct the GFLOPs on ALL the sub projects. However this has been a problem for a LONG time and it seems it may never get fixed.

HEY ADMINISTRATION, how about some love for us crunchers and FINALLY fix this problem

NM*
____________
Largest Primes to Date:
As Double Checker: SR5 109208*5^1816285+1 Dgts-1,269,534
As Initial Finder: SR5 243944*5^1258576-1 Dgts-879,713


Profile Michael GoetzProject donor
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Project administrator
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Joined: 21 Jan 10
Posts: 13621
ID: 53948
Credit: 272,146,395
RAC: 254,314
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 1 mega primeFound 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 Primes321 LLR Ruby: Earned 2,000,000 credits (4,802,778)Cullen LLR Ruby: Earned 2,000,000 credits (3,624,591)ESP LLR Turquoise: Earned 5,000,000 credits (5,021,269)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Sapphire: Earned 20,000,000 credits (20,751,038)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (36,067,618)SR5 LLR Jade: Earned 10,000,000 credits (10,007,110)SGS LLR Ruby: Earned 2,000,000 credits (3,718,606)TRP LLR Turquoise: Earned 5,000,000 credits (5,084,329)Woodall LLR Ruby: Earned 2,000,000 credits (2,963,361)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 (10,118,303)WW Sapphire: Earned 20,000,000 credits (27,020,000)GFN Emerald: Earned 50,000,000 credits (77,916,132)PSA Jade: Earned 10,000,000 credits (12,445,029)
Message 60356 - Posted: 12 Dec 2012 | 5:50:41 UTC - in response to Message 60354.

This all can be corrected if PrimeGrid Administration would correct the GFLOPs on ALL the sub projects. However this has been a problem for a LONG time and it seems it may never get fixed.

HEY ADMINISTRATION, how about some love for us crunchers and FINALLY fix this problem

NM*


If it were that simple, it would have been done years ago. :)

The reason DCF exists is because different types of calculations run at different speeds on different types of processors. A gross simplification would be if sieves run fast on AMD CPUs, but slow on Intel CPUs, while LLR runs fast on Intel and slow on AMD.

DCF is intended to correct for differing speeds by being a corrective multiplier that modifies the GFLOPs defined by the project, to create a corrected prediction for a specific computer.

That process works reasonably well if both the GLFOPS defined for the task is accurate AND if the DCF is accurate.

For the DCF to be accurate, the project's tasks need to run at a predictable rate on a single computer -- and that's possible if the project has a single type of application.

However, BOINC was originally created with the idea that each project was running only a single application -- a concept that was invalidated almost immediately as some of the earliest BOINC projects, such as CPDN, ran multiple applications.

Unfortunately, BOINC only has a single DCF per project, and this is a case where one size definitely does not fit all.

The DCF for PrimeGrid, for any given computer, is formed by some combination of the sub-projects that are run on that computer. As long as you're running more than one sub-project -- especially if they're radically different types of sub-projects (sieves, LLR, GPU, etc.), the DCF is going to essentially always be wrong for all of the tasks.

The result is that the initial time estimates are always off, and that, in turn, causes some unfortunate and problematic behavior in the BOINC scheduler.

The only way to fix this is to modify the BOINC client to support independent, multiple DCF values for sub-projects. Without that, the problem can not be fixed.

____________
My lucky number is 75898524288+1

Profile dancer42
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Joined: 15 Oct 12
Posts: 99
ID: 175439
Credit: 19,009,646
RAC: 0
321 LLR Bronze: Earned 10,000 credits (62,618)ESP LLR Bronze: Earned 10,000 credits (15,852)PPS LLR Silver: Earned 100,000 credits (125,666)PSP LLR Bronze: Earned 10,000 credits (19,267)SGS LLR Silver: Earned 100,000 credits (103,296)TRP LLR Silver: Earned 100,000 credits (112,889)PPS Sieve Jade: Earned 10,000,000 credits (18,092,157)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (104,278)TRP Sieve (suspended) Bronze: Earned 10,000 credits (56,210)GFN Silver: Earned 100,000 credits (292,992)
Message 60358 - Posted: 12 Dec 2012 | 8:48:49 UTC

if this has been a problem from day one

I would think that pressure from administrators would be enough to get it fixed.

and barring that if we as users were so directed we could bring pressure.

bionc administrators must know there is a problem do we need to squeak

so the wheel gets oiled?
____________

Profile DaveBProject donor
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Joined: 20 Jun 09
Posts: 351
ID: 42198
Credit: 11,898,570
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321 LLR Gold: Earned 500,000 credits (547,769)Cullen LLR Silver: Earned 100,000 credits (158,867)PPS LLR Silver: Earned 100,000 credits (162,534)PSP LLR Silver: Earned 100,000 credits (134,373)SoB LLR Gold: Earned 500,000 credits (510,012)SR5 LLR Silver: Earned 100,000 credits (266,757)SGS LLR Gold: Earned 500,000 credits (510,560)TRP LLR Silver: Earned 100,000 credits (242,439)Woodall LLR Gold: Earned 500,000 credits (508,989)321 Sieve (suspended) Silver: Earned 100,000 credits (200,123)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (229,801)PPS Sieve Ruby: Earned 2,000,000 credits (4,317,221)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (21,147)TRP Sieve (suspended) Silver: Earned 100,000 credits (333,494)AP 26/27 Bronze: Earned 10,000 credits (24,117)GFN Ruby: Earned 2,000,000 credits (3,730,320)
Message 60384 - Posted: 12 Dec 2012 | 23:03:29 UTC - in response to Message 60358.

It is not a problem for admins.

The only effect is a display error, mainly in the start of a WU. As the user does more WU of a type the error goes, and it reduces a lot as the WU nears completion.

The only time it has any real effect on BOINC is if the WU is short, especially if the work level held by the computer is also short and the demand on the server is high.

I am running PPS to get the timers ready for the challenge now, with low work holding some have complained of not getting work early in the challenge due to these problems.

It is not normally serious enough to be a problem worthy of attention.
____________
Member team AUSTRALIA
My lucky number is 9291*2^1085585+1

Message boards : Problems and Help : Really Oversized program

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