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[Folding log] GPU Beta Projects examined a little closer...

post #1 of 2
Thread Starter 
Hello Fellow Folders,

As I journey into the world of folding, I would like to start documenting some stepping stones along with the traps laying on my road. And eventually we can gather enough data to turn this into some kind of a knowledge base and troubleshoot guide. I am planning to map this thread for easy navigation by cross-linking to posts which contain description and (hopefully) resolution of the problems.

Most likely you haven't seen me around. That's because I started folding recently.

So a brief introduction: I started folding on a Gigabyte GTX 680 (4GB, not that it matters). I've also edited the BIOS to mimic a GTX 770. It is being fed by a dedicated 4.8GHz i5-3570k core.
*Please note that this card has a TDP rating of 450W, and keep that in mind when observing the estimated power consumption (% of TDP) in further posts.
Most of the day I spend at work, and I game in parallel to folding for a couple of hours every day. I sacrifice some of the eye candy in order not to hinder folding performance a lot.
Now, as for the operating frequencies: This is still work in progress[0] - however I will be keeping a table below for the changes I make in the future, if they can be used for reference.

[0]As of 10/09/2013


Read Me First (Click to show)
The table entries are the backbone of the log.
Any issues encountered are marked with a consecutive number, which is briefly described in the spoiler directly beneath the table.
Link to the post containing full breakdown and analysis of the problem will be present in the brief description.
Resolved issues will be marked in the table of contents in the spoiler.



*Results may be inconsistent at first. After all this is:
a) a stability test;
b) a log of client stability while overclocking;
c) a study on the client behaviour and ground for troubleshooting issues that occured.


Stock clocks=1137/1202MHz
Offset Default/Boost - by Specs/Maximum Maximum/Effective Boost Deviation Work Unit PPD Estimation TPF / Credit Issues occured
+25MHz 1162/1227/1302MHz 1241/1267MHz 26MHz / 2 steps P7810 88,556 02:15 / 13,836.9 Yes [1]


List of issues (Click to show)
[1] TPF prolonged by a factor of 3, GPU overthrottled [1302MHz] still pegged at 99% but TDP dropped by ~54% [~28% down from ~61% in normal conditions]. Read more here.


More updates to come soon...
Edited by fragamemnon - 9/10/13 at 11:45am
MEGATRON
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CPUMotherboardGraphicsGraphics
Intel Core i5-3570K @ 4.8/1.32V | Hammer&Vice'd ASUS Sabertooth Z77 PowerColor R9 290 PowerColor R9 290 
RAMHard DriveHard DriveCooling
Samsung MV-3V4G3D/US 4x4GB kit @ 2200MHz 9-10-1... 2x Western Digital Caviar Black 1TB RAID 0 Samsung 840 Evo 250GB 2xAquacomputer Kryographics Hawaii Nickel/Acrylic 
CoolingCoolingCoolingCooling
XSPC Rasa Swiftech MCP-655 Vario Aquacomputer Aqualis 450mm w/ nano & Pump top 2x XSPC RX360; 1x XSPC RS360; 1x Alphacool ST 1... 
CoolingOSMonitorMonitor
EK-Vardar F4-120 8.1 x64; Ubuntu 14.10 Dell U2412M Dell U2412M 
MonitorMonitorKeyboardPower
Dell U2312H BenQ XL2411Z KBC Poker II MX Clears SeaSonic SS-850AM 
CaseMouseMouse PadAudio
Thermaltake Core X9 Mionix AVIOR 7000 Razer Goliathus Aune T1 -> Yamaha A-720 -> Sennheiser HD650 | S... 
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MEGATRON
(24 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5-3570K @ 4.8/1.32V | Hammer&Vice'd ASUS Sabertooth Z77 PowerColor R9 290 PowerColor R9 290 
RAMHard DriveHard DriveCooling
Samsung MV-3V4G3D/US 4x4GB kit @ 2200MHz 9-10-1... 2x Western Digital Caviar Black 1TB RAID 0 Samsung 840 Evo 250GB 2xAquacomputer Kryographics Hawaii Nickel/Acrylic 
CoolingCoolingCoolingCooling
XSPC Rasa Swiftech MCP-655 Vario Aquacomputer Aqualis 450mm w/ nano & Pump top 2x XSPC RX360; 1x XSPC RS360; 1x Alphacool ST 1... 
CoolingOSMonitorMonitor
EK-Vardar F4-120 8.1 x64; Ubuntu 14.10 Dell U2412M Dell U2412M 
MonitorMonitorKeyboardPower
Dell U2312H BenQ XL2411Z KBC Poker II MX Clears SeaSonic SS-850AM 
CaseMouseMouse PadAudio
Thermaltake Core X9 Mionix AVIOR 7000 Razer Goliathus Aune T1 -> Yamaha A-720 -> Sennheiser HD650 | S... 
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post #2 of 2
Thread Starter 
[1]
I stumbled on a very peculiar problem that has been recorded before.

*Description*

While folding GPU throttled all the way up to 1302MHz which is the maximum I have observed so far. Processor time was reported 99% busy.
However, power consumption was cut down by half. I ran a simple hardware-accelerated application and it was stuttering like no tomorrow. Go figure, eh.

The little details I noted down were that:
  • The problem occurred actually long before it was reported (in terms on at least 3 frames before recalculation)
  • It actually folded when doing this 'fake run'
  • Folded frames were reported bad and essentially rolled back, hence the waste


*The Fix*
Simple as it is, either change GPU frequencies (fire up MSI Afterburner / OC Guru / EVGA Precision, etc - the list goes on).
And if you are somewhat downthrottled, move the power/temp target a bit and it will force your frequencies to get back to normal. Note that if you are TDP/Temp limited you are likely to throttle again.
In my case, I am bottlenecked by one of my i5-3570k cores so from time to time it would actually hang at 1280/1267/1254MHz. I've also seen it throttle down to 1189MHz (I am also taking P8900 work units into consideration when saying this - they generally appear to be more demanding).


*What to remember*
Things will update slowly. Prepare to bring out your calculator for simple arithmetic. tongue.gif

The best way to see the immediate effect ...well it isn't really immediate but it's the fastest way to check... is to open up your log file, wait for a couple of steps to complete and start subtracting the times. If you get near your usual TPF, then you're good to go.
Edited by fragamemnon - 9/11/13 at 6:53am
MEGATRON
(24 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5-3570K @ 4.8/1.32V | Hammer&Vice'd ASUS Sabertooth Z77 PowerColor R9 290 PowerColor R9 290 
RAMHard DriveHard DriveCooling
Samsung MV-3V4G3D/US 4x4GB kit @ 2200MHz 9-10-1... 2x Western Digital Caviar Black 1TB RAID 0 Samsung 840 Evo 250GB 2xAquacomputer Kryographics Hawaii Nickel/Acrylic 
CoolingCoolingCoolingCooling
XSPC Rasa Swiftech MCP-655 Vario Aquacomputer Aqualis 450mm w/ nano & Pump top 2x XSPC RX360; 1x XSPC RS360; 1x Alphacool ST 1... 
CoolingOSMonitorMonitor
EK-Vardar F4-120 8.1 x64; Ubuntu 14.10 Dell U2412M Dell U2412M 
MonitorMonitorKeyboardPower
Dell U2312H BenQ XL2411Z KBC Poker II MX Clears SeaSonic SS-850AM 
CaseMouseMouse PadAudio
Thermaltake Core X9 Mionix AVIOR 7000 Razer Goliathus Aune T1 -> Yamaha A-720 -> Sennheiser HD650 | S... 
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MEGATRON
(24 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i5-3570K @ 4.8/1.32V | Hammer&Vice'd ASUS Sabertooth Z77 PowerColor R9 290 PowerColor R9 290 
RAMHard DriveHard DriveCooling
Samsung MV-3V4G3D/US 4x4GB kit @ 2200MHz 9-10-1... 2x Western Digital Caviar Black 1TB RAID 0 Samsung 840 Evo 250GB 2xAquacomputer Kryographics Hawaii Nickel/Acrylic 
CoolingCoolingCoolingCooling
XSPC Rasa Swiftech MCP-655 Vario Aquacomputer Aqualis 450mm w/ nano & Pump top 2x XSPC RX360; 1x XSPC RS360; 1x Alphacool ST 1... 
CoolingOSMonitorMonitor
EK-Vardar F4-120 8.1 x64; Ubuntu 14.10 Dell U2412M Dell U2412M 
MonitorMonitorKeyboardPower
Dell U2312H BenQ XL2411Z KBC Poker II MX Clears SeaSonic SS-850AM 
CaseMouseMouse PadAudio
Thermaltake Core X9 Mionix AVIOR 7000 Razer Goliathus Aune T1 -> Yamaha A-720 -> Sennheiser HD650 | S... 
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