CPU load using GPU client

northun_munky · 13 Apr 2009 at 11:28

Hi guys,

I'm just getting back into folding after a time away and have set up the latest GPU client to fold on both GPU's of my 4850x2 for the big Team 10. Its working fine (other than the fact I got more PPD from a single 8800GT

) but i notice its using considerable CPU time across all for cores.

I remember my 8800gt used to use about 20% of 1 core. Is this an ati thing? Anything I need to worry about?

northun_munky · 13 Apr 2009 at 17:40

Cheers for the reply snapshot. I've had a search for the enviroment variables and entered the ones recommended to no effect. I'm still seeing 50-70%ish load across all cores. I think from reading the articles that the variables work for the 1.24 core, which you need 9.3 drivers for, which I don't have. I saw too much of a performance drop with the 9.3's so went back to 9.2's. Anyhow, lets clock up some points and see how it goes!

northun_munky · 15 Apr 2009 at 15:21

Cheers for checking biffa. I moved to 9.4's and that reduced the load to about 5-10% on just two cores which is much better. Problem is I'm now getting random BSOD's!! Can't seem to win with the ATI client...

northun_munky · 16 Apr 2009 at 08:37

Biffa said:
I'm on 9.3.

Try the following, seems to work well for some.

Cat 9.4, F@H Core 11 v1.24, no DLL's in F@H GPU folder,
Environment variables:
BROOK_YIELD=2, CALL_NO_FLUSH=1, FLUSH_INTERVAL=128

Using those settings ON THE 1.24 CORE with the addition of CAL_PRE_FLUSH = 1 AND STILL GETTING bsod

Ill have a further play with it but I might have to settle for just one GPU which is a shame.

Big.Wayne said:
Heh I'm with CPC!

But we can still be friends I hope!

Thats who I folded with a while back. Used to like getting my name in the mag! But I spend most of my time here so I've done the switch.