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1) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 41844)
Posted 2952 days ago by Profile Cartoonman
i have a HD4850 running on 11.9... PPS sieve is working fine... and GPU-z sez i has OpenCL.

you might need to install AMD APP SDK for it to work.
2) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 30853)
Posted 3230 days ago by Profile Cartoonman
i stand corrected.

If my driver date is correct, i have 10.8. Req's on site say 10.9+ is req for SDK 2.3. That is most likely why. I'm gonna have to remove CCC 10.8 and install 10.11.

I also suggest that the SDK should be removed before CCC, just to make things cleaner. SDK is reliant on CCC and the ATI drivers.
If you remove the bottom of a tower of blocks first, the top would most likely collapse into a mess.
3) Message boards : Sieving : ppsieve ATI/OpenCL testing (Message 30824)
Posted 3230 days ago by Profile Cartoonman
I have something to report.

I was able to run these fine on 4850 using SDK 2.2. W7 64-bit. No errors whatsoever.

Recently, i updated the SDK to 2.3. now, all WU from PG for the GPU comp. error out.

Seems to me this app doesn't cover 2.3 SDK Open-CL. Anyone else verify this? I know this is very likely because i ran Milkyway@home, which uses CAL, and it ran fine. only PG, which uses CL, conks out.

EDIT: I concur with the above post stating that GPU-Z does not display the Open-CL tick.

Verdict: 2.3 SDK isn't compatible with this app.
Recc. Downgrade SDK to 2.2.
I'll do so, and post back with results.
4) Message boards : Number crunching : Proth Prime Search (Sieve) - GPU performance (Message 29155)
Posted 3261 days ago by Profile Cartoonman
I've got
Windows 7 ultimate 64-bit
Phenom II x2 550 BE
ATI HD 4850
CCC 10.9, (not sure)

running approx 3505.16 seconds, 58:42 minutes.

can round it to 58-60 minutes leeway. Stock clocks and volts.
5) Message boards : Number crunching : The Back to the Future Challenge (Message 10996)
Posted 4059 days ago by Profile Cartoonman

"As always, we are searching for those very elusive mega primes. Unfortunately, another victory for them as they have avoided discovery again. Rest assured we will continue. :)"

aww.. soon.. we'll find you primes!

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