PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise
1) Message boards : Number crunching : 2011 Challenge Series suggestions (Message 33783)
Posted 3443 days ago by Profile Kevin D PuckettProject donor
Will an ATI build of CW Sieve be released before the June Challenge? It would be nice to know the plan for ATI projects in the near future...
2) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28748)
Posted 3533 days ago by Profile Kevin D PuckettProject donor
So then what is Collatz doing different? It will run on my card, no hastle, with the default Dell drivers.
3) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28742)
Posted 3533 days ago by Profile Kevin D PuckettProject donor
Alright, for now at least I will be running Collatz with my GPU.

The computer with the ATI card is my main computer, so I need it to be running windows... If it were one of my secondary computers, that would be a good idea. Anyway, thanks for the idea.
4) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28735)
Posted 3533 days ago by Profile Kevin D PuckettProject donor
sdl*, I just ran the same test myself after reading your post. I am running Dell drivers: 8.632.1.2000. This is my result:

tpsieve-cl-x86-windows.exe -p42070e9 -P42070030e6 -k 1201 -K 9999 -N 200000 -c 60 -M2

tpsieve version cl-0.2.3c (testing)
nstart=76, nstep=32
tpsieve initialized: 1201 <= k <= 9999, 76 <= n < 200000
Sieve started: 42070000000000 <= p < 42070030000000
Thread 0 starting
Error: Creating Context. (clCreateContextFromType): Device not found.

It looks like the exact same error.
5) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28731)
Posted 3533 days ago by Profile Kevin D PuckettProject donor
Thanks for speaking up, Thomas. It sounds like you and I have exactly the same problem.

I definitely used Mobility drivers, cenit, and believe me, I have been reading every message, baloon, and pop-up that I get during installation. Nothing indicates that the drivers did not install correctly, save for the fact that the driver version does not change.

Most OEM laptop makers restrict ATI (and NVidia for that matter) drivers to those that they modify themselves. Dell is horribly slow at updating these to current versions (I know personally with my own Dell laptop with an NVidia GPU). However, you can get the most recent "non-officially supported by Dell" drivers for most ATI mobility GPUs here with instructions on how to install using the Mobility Modder.


I tried the Mobility Modder, following the instructions , but nothing changed. I don't see what I could have done wrong, but I'm not so sure I did do anything wrong. Thomas sais that the modder didn't work for him either.

Now, my Dad knows a lot more about computers than I do. Usually if I can't figure something out, he can. We have the exact same computer, so he tried to get the drivers to load on his as well. He didn't have any luck either. So here's what we're thinking: what if Dell custom built the GPU, or somehow restricted it's base functions. That would explain why, say, Direct Compute is not enabled, as cenit said it should be, or maybe why the Mobility Modder has no effect. These are all guesses, but here's one reason Dell might have done it, at least on our computers: Overheating. With i7-720 cpus these computers run hot. After all, a laptop's cooling system is not the most effective. Now add a fully functional 1G Medium-performance ATI card to the mix, and you might just have a meltdown.

It sounds plausible to me that Dell would do something like that. Any thoughts?
6) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28708)
Posted 3534 days ago by Profile Kevin D PuckettProject donor
O.K., so I'm running a Dell laptop 1747, Windows 7.

It turns out nothing I install changes the driver version on GPU-Z -- except the official Dell drivers... I've tried loading ATI's 10.10, 10.10App, 10.11, 10.11App, but they don't change the driver version. When I loaded the latest(I think) Dell drivers, it updated the version to 8.713.3.2000, however still not OpenCl compatible. So it appears that I have not managed to successfuly load any of the drivers that I thought I was loading.

I am wondering if my system will only accept Dell modified drivers. Is that possible?
7) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28700)
Posted 3534 days ago by Profile Kevin D PuckettProject donor
Um... I hate to say it, but, I just completely re-installed Windows 7 this morning. 10.10 is the only driver I have loaded, and it is definitely the APP version. The installation log indicated that SDK 2.2 was loaded.
8) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28694)
Posted 3534 days ago by Profile Kevin D PuckettProject donor
Cenit wrote:
Mobility 4650 card is definitely OpenCL compatible. I don't know why this app isn't running.
Can you please post a screenshot of GPU-Z and one of Catalyst Hardware info?

Ah... Here is a picture of GPU-Z with 10.10 drivers. The driver package I installed did not appear to load Catalyst Control Center.



I tried to run the app, through boinc, with the app_info.xml file and the .exe in primegrid's data directory. It will download an ATI wu, but when it tries to run, it instantly sais "computation error". I suppose it will not be able to run until I can get the test app to work on my computer as well.
9) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28402)
Posted 3540 days ago by Profile Kevin D PuckettProject donor
Alright. This may be good news. But... The installation appeared to go smoothly and no errors were in the installation log. GPU-Z fails to recognize Open-CL with drivers 10.11 APP, or 10.11(regular). Furthermore, 10.11 is the only recomended driver for my card and OS.

I cannot find anything that says that my Mobility Radeon HD 4650 is OpenCL compatible... Is it possible that the HD4xxx series cards are compatible in general, but my card is not?
10) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 28398)
Posted 3540 days ago by Profile Kevin D PuckettProject donor
Well, cenit, thanks for your advice. It was very helpful. I loaded GPU-Z, as you had suggested, and in confirms, my card is not compatible with OpenCl. It looks like I won't be testing this app, after all.

Thanks everyone for their help and for developing this aplication, as I am sure that there are plenty of other people out there who will be able to use it when it is complete.


Next 10 posts
[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2020 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 1.52, 1.70, 1.74
Generated 6 Aug 2020 | 13:19:03 UTC