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Message boards : Proth Prime Search : HOTFIX for "Computation error" on GPUs

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Alex "Axel" Fox
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Joined: 13 Feb 12
Posts: 43
ID: 130504
Credit: 25,319,187
RAC: 0
PPS LLR Silver: Earned 100,000 credits (227,770)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,169,730)PPS Sieve Turquoise: Earned 5,000,000 credits (8,808,423)TRP Sieve (suspended) Bronze: Earned 10,000 credits (17,004)GFN Jade: Earned 10,000,000 credits (14,075,598)
Message 50945 - Posted: 1 Mar 2012 | 17:26:56 UTC

I just successfully completed a pps(sieve) work unit, despite the previous errors.
http://www.primegrid.com/workunit.php?wuid=253925806

In order to temporarily fix the problem, download a good number of WUs, then edit your client_state.xml (after shutting down BOINC).
Take the value for rsc_fpops_bound within the pps_sr2sieve workunits and multiply by it 100.

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 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,822,730)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Turquoise: Earned 5,000,000 credits (5,009,577)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,145,754)PPS LLR Jade: Earned 10,000,000 credits (10,698,581)PSP LLR Turquoise: Earned 5,000,000 credits (5,197,957)SoB LLR Sapphire: Earned 20,000,000 credits (34,221,148)SR5 LLR Turquoise: Earned 5,000,000 credits (8,972,537)SGS LLR Ruby: Earned 2,000,000 credits (2,014,138)TRP LLR Ruby: Earned 2,000,000 credits (2,737,347)Woodall LLR Ruby: Earned 2,000,000 credits (2,195,123)321 Sieve Turquoise: Earned 5,000,000 credits (7,202,055)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 (20,110,788)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 (10,114,260)GFN Emerald: Earned 50,000,000 credits (69,003,454)PSA Jade: Earned 10,000,000 credits (12,404,447)
Message 50953 - Posted: 1 Mar 2012 | 18:14:53 UTC - in response to Message 50945.
Last modified: 1 Mar 2012 | 18:19:32 UTC

That will cure the "max time exceeded" error.

Make sure that's the problem you have before going through the trouble of editing client_state.xml. Another possible cause of computation errors on NVIDIA GPUS for these WUs is the 295 driver error.

It's VERY easy to tell which is causing the computation error:

If your run time is less than 5 seconds, it's probably the Nvidia 295 driver error.

If your run time is 1000 seconds or more, it's probably the "max time exceeded" error, and you can use the technique described by the OP.


EDIT: Thanks for the suggesting the work-around!!!
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Alex "Axel" Fox
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Joined: 13 Feb 12
Posts: 43
ID: 130504
Credit: 25,319,187
RAC: 0
PPS LLR Silver: Earned 100,000 credits (227,770)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,169,730)PPS Sieve Turquoise: Earned 5,000,000 credits (8,808,423)TRP Sieve (suspended) Bronze: Earned 10,000 credits (17,004)GFN Jade: Earned 10,000,000 credits (14,075,598)
Message 50956 - Posted: 1 Mar 2012 | 18:33:34 UTC

If you look at the unit, it was completed by an ATI card. ;)

I do have a dual configuration for NVIDIA and ATI, but my NVIDIA driver is 285.62 and it's successfully working on a genefer unit as we speak.

This fix was indeed for the universal "max time exceeded" (-177) that most people are getting.

I hope that this workaround is helpful to everyone!

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 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 51080 - Posted: 4 Mar 2012 | 0:45:12 UTC

"In order to temporarily fix the problem, download a good number of WUs, then edit your client_state.xml (after shutting down BOINC).
Take the value for rsc_fpops_bound within the pps_sr2sieve workunits and multiply by it 100. "

I tried from a previous post and it did not work. The problem was I did not shut BOINC down. THIS IS ESSENTIAL as when continuing to run it does not normally look at this file very often. It always uses it on restart.

With a new set of WU I did it again with BOINC stopped and I have now had my first success in days.
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Member team AUSTRALIA
My lucky number is 9291*2^1085585+1

Alex "Axel" Fox
Send message
Joined: 13 Feb 12
Posts: 43
ID: 130504
Credit: 25,319,187
RAC: 0
PPS LLR Silver: Earned 100,000 credits (227,770)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,169,730)PPS Sieve Turquoise: Earned 5,000,000 credits (8,808,423)TRP Sieve (suspended) Bronze: Earned 10,000 credits (17,004)GFN Jade: Earned 10,000,000 credits (14,075,598)
Message 51128 - Posted: 5 Mar 2012 | 2:29:27 UTC - in response to Message 51080.

Yes, I probably should have bolded the "shutting down" part.
If you do not shut down the client, editing the .xml file does nothing.

Hopefully soon we won't have to do this. I'm primarily running PPSllr and Genefer WUs in the meantime, but will get more PPSsieve WUs when I have the time to edit the client_state file.

Profile DaveBProject donor
Avatar
Send message
Joined: 20 Jun 09
Posts: 351
ID: 42198
Credit: 11,898,570
RAC: 0
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 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 51360 - Posted: 9 Mar 2012 | 12:26:32 UTC - in response to Message 51128.

yeah, thanks for the initial comment. I have got many done now.

I also got one due 15th that has run without any editing, perhaps it is all OK now.
____________
Member team AUSTRALIA
My lucky number is 9291*2^1085585+1

Alex "Axel" Fox
Send message
Joined: 13 Feb 12
Posts: 43
ID: 130504
Credit: 25,319,187
RAC: 0
PPS LLR Silver: Earned 100,000 credits (227,770)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,169,730)PPS Sieve Turquoise: Earned 5,000,000 credits (8,808,423)TRP Sieve (suspended) Bronze: Earned 10,000 credits (17,004)GFN Jade: Earned 10,000,000 credits (14,075,598)
Message 51546 - Posted: 14 Mar 2012 | 19:45:42 UTC

It's possible that doing the initial editing of the client_state.xml may have assisted in automatically lengthening the ETA?

After finally being able to fix my computer, I'm going to try getting another batch of them. Maybe it was resolved by an admin, or this "fix" took care of it.

Either way, if I hit another error, I'm editing the .xml file. :P

Message boards : Proth Prime Search : HOTFIX for "Computation error" on GPUs

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