A couple of F@H questions

ubersonic

ubersonic

ubersonic

Soldato
Joined
26 May 2009
Posts
22,175
Having been interested in F@H for a while I finally got around to setting it up on a couple of machines today, followed the guide on here and that's worked out well, just have a couple of questions:

1: Am I supposed to register or something? following the guide I was able to select OCUK as my team and set my username but I was expecting to have to register on a site or apply to the team or something.

2: In the option to set the number of cores, on an i7 is this physical cores or logical?

3: Is it worth enabling GPU folding on a 9600GSO 1.5GB or is that more likely to slow the CPU and end up counter-productive?
 
1. There's no formal registration but you do need a passkey to get the early completion bonus points. Read this for details.

2. It's the number of threads rather than cores so 'logical'.

3. I suspect a 9600 isn't going to generate enough output to be worth the reduction it will cause to the CPU plus the extra leccy. GPU folding is not cost-efffective at the moment compared with CPU folding. But give it a try and see what you find.
 
You would probably get around 4000 PPD out of a 9600 GSO if its the one with 96 shaders especially if you can get them up to If its the castrated 512 version it only has 48 shaders and isn't worth it.

Delink the core and shaders, and push the shaders clocks up as far as she will go and you could hit 4.5K PPD.

For a comparison, a GTX460 768MB which you can get on the MM for around £50 will net around 16K PPD, after that its the law of diminishing returns with the top end cards not really being fully pushed to their limits by the code, especially the new ones, e.g. currently a 580 or 680 GTX pulls around 20-21K PPD admittedly with different power requirements but you get the idea :)

For Folding shader speed is all really, with older cards you can separate the core speed from the shader speed and push the shaders up high and pull the core and memory speed down low to get maximum performance for the minimum power envelope. Can't remember if the 9xxx series can do that.
 
Thanks guys, im getting 3K PPD out of the 9600GSO, its the 1.5GB XFX Farcry edition (wonder what game came with it) so 96 shaders iirc, its got an aftermarket Arctic cooler on it and its staying at ~50c while folding, my i3 540 @ 3.8Ghz is pulling 5.5k PPD. Ill try messing with the clocks later on the GSO and see what I can do, this machines just a spare I had around so decided to make it a 24/7 folder.
 
You must log in or register to reply here.
Back
Top Bottom