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Dual core + GPU = Confused

S

scoob8000

2[H]4U
Joined
May 4, 2002
Messages
2,834
So I finally got an ATI card capable of folding (X1950XTX).

Without reading I initially fired up all three console clients (CPU1 idle/95%, CPU2 idle/95%, and GPU low/100%).

After seeing how slow the GPU client was to process I started reading....

Made it thru the FAQ, but I'm still confused.. :D

Am I understanding right that I should only run 2 clients on my dual core machine? The GPU client and one CPU client?

That's the impression I got, just want to confirm. :)
 
I do believe so. The GPU client polls one of the cores for the project. I have heard it has gotten better reciently, but Tigerbiten should have the info your looking for.
 
Whats the CPU and which OS are you running ?

I ask which CPU because normaly if you can run the SMP client, you'll get better points for less power used.

Its been a few months since I've last run the GPU client as not enough points for the power used.
Vista runs the GPU client slightly better than XP due to slight differences in how DX9 works.
In XP, DX9 need an empty core so it can poll the card.
So best setup is to run one CPU client with the GPU one.
Never played around with Vista so I'm not 100% sure which is the best combo.

You also need to play around with the ATI tool so as to find the best core speed/min voltage needed to run at 3D speeds or better.

Luck ............... :D
 
Tigerbiten said:
Whats the CPU and which OS are you running ?

I ask which CPU because normaly if you can run the SMP client, you'll get better points for less power used.
Click to expand...


This box is XP Pro with an AMD Opty 175..

That actually led me into another question. Does one SMP client console eliminate the need to have two consoles running with separate machine ID's?

Last night I figured out about making the vid card run in 3d mode with ATITool, that brough my times down pretty good.


Here's something I read on the FAH page
Client looks like it is using lots of CPU time: Graphics drivers must poll the GPU to see if it is done. This will look like a lot of CPU time being used, but nothing is really being done, so one can run other relatively CPU heavy code at the same time. However, we do not recommend running multiple FAH clients, as this can significantly slow down the GPU client. A good rule of thumb: leave at least 25% of the CPU time available for the GPU client.
Click to expand...

So am I reading that right, that I should be able to keep my clients as follows: CPU1 Idle/85%, CPU2 Idle/85%, GPU Low/100%

I'm still running one CPU client and the GPU client until someone tells me otherwise. :)
 
I'm assuming that only Windows XP and Vista are supported with the GPU client if it requires DX9?
 
I believe so..

So I've done a little testing over the past few days.

With my setup (Dual core proc + GPU), it's definitely faster to one one client on the CPU, and one on the GPU.


With only the GPU running, I'm seeing 54-58% CPU load from the GPU client. It appears the proc must work pretty hard just to keep the GPU feed with data.

It doesn't seem like there is any benefit to gain from running 2 CPU cores at 50% either.
 
With a Opty 175, you are probably better off ditching the GPU client and just use a SMP client for more points and less hair pulling ;)

 
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