Although the card could be overheating, or there might be software bugs in the game, it might actually be the power supply to blame!
When you use the GPU to the max, it requires more energy, so the Amps have to go up.
If the PSU cant pull enough Amps to support the card the system may freeze/lock up or the graphics may start displaying odd characteristics.
It is a good idea to not use GPUGrid when you are playing games! Perhaps set Boinc to not use the GPU when you are using the system:
Opem Boinc (in Advanced View), select the Advanced Tab, Preferences, Processor usage, and uncheck the box beside Use GPU while computer is in use.

I have created a cc_config.xml with several apps that shall run in exclusive mode. This way BOINC automatically stops computing when e.g. a game runs.

The GPU is constantly at 60-65°C when computing, even after many hours.
When I play a game while BOINC is doing computation on the GPU, the game stutters and then freezes soon and the driver restarts.
So, do you think this could be because of the PSU not delivering enough Amps to the GPU?

The VPU recovery you have is not a Powersupply problem, it is somehow an incompatibility between Boinc (GPU) and heavy-GPU apps, such as games.

Collatz is not very concerned by that problem, just try MW and you'll see much more frequent problems than that...

That´s what I thought, too. It doesn´t have anything to do with the PSU. I still believe my PSU is perfect for my system and that I will not encounter any problems with it :D.

PS: May I participate in the alpha testing?

There are 2 ways you can determine if it is a PSU issue or not.

If you have an Amp/Watt meter, use it to see what Wattage and Ampages are being used when playing the game and when not.

The other way would be to run the latest version of GPU-Z and look at the amount of the GPU being used.
It will likely be about 60% to 70% running GPUGrid. If you try to run additional applications that use the GPU, this may rise, it depends on the application. If it rises significantly or the amount of RAM usage rises significantly then obviously the GPU is drawing more Amps! If neither change significantly then there is no way it is a PSU issue.

I don´t want to draw too much attention, so here´s just a URL:
GPU-Z shows while Collatz C is computing on the GPU:
GPU-Z.
Collatz C occupies ~58MB of system Ram.
Tell me what you think.

A lot of off-topic here, I'd like to read about ATI GPU support in GPUgrid instead of this chat here...

We are working on the code to get it faster on ATI and Nvidia. My impression is that the G300 will be faster, but it still early to say it.
We expect to have something new by the time ATI releases a new version of the OpenCL SDK. Probably in January.


gdf

Stream 2.0 SDK is here (no more beta)
http://developer.amd.com/GPU/ATISTREAMSDK/Pages/default.aspx

I know the HD 5770 only uses 108W max, but the recommended PSU is at least 500W, and some people suggest you need a PSU capable of 40A on the 12Vold rail.

And may I suggest that these people are wrong?

The point is that 108 W = 12 V * 9 A. So each card draws 9 A max, if we ignore any power draw at 3.3 V and 5 V. Why would one need 40 A for that? Only if the CPU draws 31 A at 12 V -> 372 W. Now that's one bad ass number even *Presshots* can only dream about ;)

What he should approximately need is a PSU which puts the 9A @ 12 V on one rail and the max 95 W ~ 12 V * 8 A for the CPU onto another one. Both could even be fed from one of his 3 12 V rails at max 18 A (would be risky & silly, though).

Although the card could be overheating, or there might be software bugs in the game, it might actually be the power supply to blame!

Technically that's true, but I don't think that's happening here. From what I have seen I can tell you that games and GP-GPU don't mix well yet, be it ATI or NV. So some software problem is very likely.

If you have an Amp/Watt meter, use it to see what Wattage and Ampages are being used when playing the game and when not.

This works if you exceed total wattage. But you can not easily look into the PS, so you can't know if individual rails are overloaded (really nasty error).

If it rises significantly or the amount of RAM usage rises significantly then obviously the GPU is drawing more Amps! If neither change significantly then there is no way it is a PSU issue.

But if the load changes, it does not have to be a PSU problem ;)

IMO there is on simple and almost reliable test for PSU problems: try a bigger (quality) one. If the problem goes away - you just found the reason. If not - look elsewhere.

-> back to topic, it's a sticky after all *doh*

MrS

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Scanning for our furry friends since Jan 2002

I have just seen this. This is very good news. We are trying it out.

gdf

We are working on the code to get it faster on ATI and Nvidia. My impression is that the G300 will be faster, but it still early to say it.
We expect to have something new by the time ATI releases a new version of the OpenCL SDK. Probably in January.


gdf

Stream 2.0 SDK is here (no more beta)
http://developer.amd.com/GPU/ATISTREAMSDK/Pages/default.aspx

Sorry for the "chat".
I´ve had no problems with my PSU yet and as long as everything works, I won´t change it. At least when I get some problems, I will check, if it could be the PSU.
Hopefully the "chat is over now, I don´t want to hijack this thread any longer.

Back to topic:
Does this mean that all GPU-Projects can easily program ATI WUs now?

There is also a new version of catalyst. AMD says Radeon 5000 Series are 6-9% with this version(see here).

Does this mean that all GPU-Projects can easily program ATI WUs now?

Without further reading I'd say "as easy as before". It's still their proprietary Stream SDK and different from CUDA and OpenCL.

MrS

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Scanning for our furry friends since Jan 2002

maybe interesting for you guys.
ATI publishes Evergreen Family Instruction Set Architecture - Instructions and Microcode
http://www.phoronix.com/scan.php?page=news_item&px=NzgzMg
http://developer.amd.com/gpu/ATIStreamSDK/assets/AMD_Evergreen-Family_ISA_Instructions_and_Microcode.pdf
Together with the new SDK it will maybe helpfull to set up a performand stream-code of your application.

What do I have to do to get some work units to download to my i7 with a couple of 5870's. Thanks

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Hello, I have 2 HD5870 and I would like to know when the new ATI application is planned for your project ?

Anthony

I would also like to know!

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hi,
we are back to work now.
There will be several good news in the next couple of weeks. We have been working a lot on the optimization for both nvidia and ati.

GDF.

Worst cliffhanger ever. Keep up the good work.

-me.

For the sake of my poor, though willing, GTS 250, give it a rest and make my 58' happy :-)

hi,
we are back to work now.
There will be several good news in the next couple of weeks. We have been working a lot on the optimization for both nvidia and ati.

In the world of BOINC, no news is never good news ... :)

I eagerly anticipate the good word ... faster applications are always welcome and I now have one 58xx class card so even if the ATI is not good enough for the 4xxx class and below, well, I have at least one more asset to apply ... and as the Nvidia cards die I may just move over to ATI for all ...

Anyway, thanks for the update ...