I crunch short runs on my notebook. It has a Nvidia GT 740M which is not sth. very fast but could finish long hours at two days.

However, for about two weeks there are lots of errors. Some works run for a short time and errorrr... And some passes %90 and then errorrr!...
All the works ended with errors are short run Noelia works. When I check them some ended up with errors on other users and some succeeded to finish, so I think they're not really faulty. But it seems I have a problem with my system.

I use Kubuntu 15 with Nvidia driver 346.59 running via optirun command which is a way to utilise Nvidia GPU of Optimus notebooks. Driver seems to be old but this is the latest one in Kubuntu repo. I may need to test latest drivers from Xorg-Edgar's repo but sometimes they break Bumblebee and CUDA, so I didn't hurry to install them. Also it was crunching fine since I installed this OS.

dmesg errors I get are these:
[ 7007.280414] NVRM: GPU at PCI:0000:07:00: GPU-932eafe5-81a1-4d7e-b0cb-1f8f59518f5c
[ 7007.280427] NVRM: Xid (PCI:0000:07:00): 13, Graphics SM Warp Exception on (GPC 0, TPC 1): Out Of Range Address
[ 7007.280437] NVRM: Xid (PCI:0000:07:00): 13, Graphics SM Global Exception on (GPC 0, TPC 1): Physical Multiple Warp Errors
[ 7007.280444] NVRM: Xid (PCI:0000:07:00): 13, Graphics Exception: ESR 0x504e48=0x1000e 0x504e50=0x4 0x504e44=0x13eff2 0x504e4c=0x7f
[ 7007.280459] NVRM: Xid (PCI:0000:07:00): 13, Graphics Exception: ChID 0005, Class 0000a1c0, Offset 00001b0c, Data 00000000


What problems can cause this? Notebook hardware tired from running 7/24 Gpugrid?

Recently I've drilled some holes under the laptop and put some heatsinks on GPU VRM's and some other parts. Also running Notepal U3+ to push some air to cool down the VRM's, they're really hot, untouchable. Most of the time GPU runs less than 70 deg, and max. 73C. It was crunching problem-free even at 90degrees. So what can cause this, for two weaks? Also other games and crunching projects run normally on GPU.

Have huge ratio for tasks/errors as same as previous person. Updated drivers today to 355, boinc version is 7.6.6 for last month or so. Could it be 7.6.6 version issue or driver or something else?
as task runs for days, it's not good to loose such amount of work done.
thanks

Please post the computer ID that is having the problem, and also the details reported by GPU-Z. It seems possible that it is clocked too high.

all GPUs are going by default
https://www.gpugrid.net/show_host_detail.php?hostid=172749
https://www.gpugrid.net/show_host_detail.php?hostid=172862

For your GTS 450 computer, you may need to lower the clocks. You should try running the Heaven benchmark for several minutes, to see if it's stable at current clocks, and if not, you'll need to lower the GPU Offset using a tool like MSI Afterburner.

Thanks
My question was about your end and possible drivers or project' new version. I have 5 hosts with nVidia cards and 3 of them with older cards stopped getting tasks or failed to execute them.
Those hosts were intact fr last couple of years doing only designated boinc tasks, nothing wrong with fans or anything being changed.
Your advises are good, but meanwhile be aware about possible issues with drivers, boinc shell updates, your project files updates, windows updates etc

Thanks
My question was about your end and possible drivers or project' new version. I have 5 hosts with nVidia cards and 3 of them with older cards stopped getting tasks or failed to execute them.
Those hosts were intact fr last couple of years doing only designated boinc tasks, nothing wrong with fans or anything being changed.
Your advises are good, but meanwhile be aware about possible issues with drivers, boinc shell updates, your project files updates, windows updates etc

so I just cut long runs then?
also where is ATI support, I have couple of cards

so I just cut long runs then?
also where is ATI support, I have couple of cards

thanks mate

I agree with him.
I also find a lot of mistakes since 2 weeks
And no, it's not often propagated here overclocking the GPU
All other programs will run without errors on my system.
System: WIN 10
CPU I-7
NVIDIA GTX 760

What is the exact make and model of your GPU? And what does GPU-Z show for values "GPU Clock" and "Default clock"?

Believe it or not, we are trying to help, but you have to be willing to provide details, and be willing to investigate/troubleshoot by doing things like downclocking when requested.

GPUGrid puts a certain kind of stress on GPUs, that other distributed apps and games cannot replicate. I've seen firsthand where I've had to downclock in order to get stability in GPUGrid, whereas the same GPU can run other apps/games at higher clocks. So, downclocking to attain GPUGrid stability, is normal here.

Jacob,
i'm NOT interested to begin a old discussion with you about overclocking.

https://www.gpugrid.net/forum_thread.php?id=4097&nowrap=true#41152

So, you can't be bothered to provide the details, or to try things to fix the problem? Well, then you can't be helped.

Yes, sometimes batches have problems. But if you're having problems with multiple batches, then it's time to start troubleshooting, if you want to fix it. If you want to have a bad attitude, and not troubleshoot, then you can't expect it to fix itself.

failing crunchers
nVidia GTX275 633/633Mhz
nVidia GTX450 783/783Mhz

drivers updated to latest
win7-32

failing crunchers
nVidia GTX275 633/633Mhz
nVidia GTX450 783/783Mhz

drivers updated to latest
win7-32

failing crunchers
nVidia GTX275 633/633Mhz
nVidia GTX450 783/783Mhz

drivers updated to latest
win7-32

GTX 275, 633 reference clock, compute capability 1.3 (Tesla), fab 55nm
GTS 450, 783 reference clock, compute capability 2.1 (Fermi)

GPUGrid relies on newer compute capabilities, and newer driver/Cuda versions, and can't easily support older GPUs.
https://www.gpugrid.net/forum_thread.php?id=2507

NVIDIA no-longer develops drivers for the pre-Fermi types. They try to support them, but it's very limited support.
http://nvidia.custhelp.com/app/answers/detail/a_id/3473

My recommendation would be:
- Have the GTX 275 work on some other project, like maybe Folding@Home or SETI@Home
- Continue to troubleshoot the GTS 450 if you want to do GPUGrid work, by doing things like cleaning the fans, using MSI Afterburner to set a custom fan curve to keep the temp below 70*C, doing clean driver installs, lowering clocks even below reference, etc.

https://en.wikipedia.org/wiki/CUDA
https://en.wikipedia.org/wiki/GeForce_200_series
https://en.wikipedia.org/wiki/GeForce_400_series

Regards,
Jacob

My advice on this occasion only would be to shut up.

Very helpful answer :-(
Do you really think I post error if the same batches always emerge only fault with me?

Ex:
http://www.gpugrid.net/workunit.php?wuid=11166870
http://www.gpugrid.net/workunit.php?wuid=11175897

The error you are getting, appears to be different than the other errors for those work units. So, yes, I still believe you should be making changes to your system, in an attempt to resolve the problem you are having. Sorry, but it's the truth.

Sorry Jacob I can't even remember why I posted this last night after I got in from a night out. So once again Sorry!

My advice to MYSELF is when you've had a few too many Step away from the keyboard.

Hehehe... Too funny! Apology accepted. I know I come across as a loser sometimes, but I genuinely am trying to help.

hahah guys, clearly it was some kind of fun party time remains
don't you mind just remove that mess from below? but technically it still perfectly fits our topic " Lotf of errors for two weeks" and mistakes I would say)

I currently run 2 GTS 450's.
Win 7 Ult. x64
Both run stock.
Use driver 347.52.
Had some problems a while back with both cards.They were overclocked at the time.
Jacob suggested I go stock and even less.
Have not had a problem since.
Only use them for short runs as these take between 22-24hrs per task.
I know they are getting old for GPUGRID but are great space heaters here in The Great White North (Canada).
Just trying to make my 25 million before I consider retiring them.....

My 2 cents worth....

JR

Do you really think I post error if the same batches always emerge only fault with me?

Ex:
http://www.gpugrid.net/workunit.php?wuid=11166870
http://www.gpugrid.net/workunit.php?wuid=11175897

Finished a long run and now 80% of a short. Waiting for errors. Also no errors on Einstein@home works...

Finished a short unit, but not the next! Now, crunching another unit.