Subject: Re: The annoying way that BOINC "throttles"..
From: Patrick Vervoorn
Date: 12/11/2007, 09:12
Newsgroups: alt.sci.seti

In article <4737ac8e@news2.actrix.gen.nz>,
~misfit~ <misfitnz@yahoot.com.au> wrote:
Patrick Vervoorn wrote:

No idea what these problems were, hopefully you solved 'em (I gather
from some text below you did).

I did indeed. My new motherboard, an Asus P5K-E WiFi-AP, with the P35/ICH9 
chipset, doesn't give enough vcore. Even with the BIOS defaults set my 
machine kept random rebooting or blue-screening. After much gnashing of 
teeth and rending of garments (also using of monitoring apps) I discovered 
that, if I increase what the BIOS tells me the vcore is by 0.15v then it's 
fine. It's delivering 0.15v too little. Took a while to work it out as, with 
any new build, any number of things could cause the symptoms I experienced. 
It's the first time I've struck that particular problem.

Was this before or after the overclocking? :)

It's either this, or try to find out what exactly the BOINC folks had
in mind when they implemented the xx% CPU usage option.

Yeah. Or give up SETI altogether, in which case I'd have to immediately stop 
reading or posting in this newsgroup. <g>

Well, perhaps leave the computer on, running SetiBOINC at 100% every night 
before you go to bed, and set the computer on some sort of timer, where it 
switches off automatically after xx hours? If you set that to 6 hours, for 
instance, it will then effectively use 25% of the available CPU power for 
SetiBOINC?

I got the demo the minute it came out (well, minus some download time
of course ;). I haven't really monitored CPU usage during the demo,
but it in any case detects a quad core CPU without any problems. Very
impressive game BTW, the Demo is well worth the 1.9G download.

So I'm told. It's on my download list, if I can't find it on a cover DVD in 
the next few weeks.

By that time the final game should be about out. ;)

[Writing something yourself to throttle SetiBOINC]

Ahh, but is the reward worth the work? Something I have to ask myself often. 
;-)

Fulfillment? Satisfaction? And the continued fuzzy happy feeling of 
contributing to SetiBOINC? I think the reward is well worth the work!

Or perhaps try to warm up the BOINC people to a new kind of implementation 
of the CPU usage parameter...

[Linux Live CDs]

And?

And I think that I'm not yet ready to leave my Microsoft security blanket.

'Microsoft' and 'security' in one sentence!? Daring!

Your ISP doesn't have an unlimited plan?

Yes, however it's expensive and it's through a different, ummmm, 'pipeline'? 
You're de-priotitised, throughput decreases.

Very weird. By de-prioritising you mean your ping times increase? So what 
ping do you get to the first link after passing through your ADSL modem? 
This sounds like ADSL from the stone age!

What speed are you on before you're rate-limited?

256/128kbps. Pathetic huh? I've just decide to pay another $10/month and am 
getting upgraded to 2M/128 tomorrow.

If you want an ADSL line with that speed, you'd have to spend quite some 
effort overhere. The 2M down is still with the same 1GB / day limit? If I 
did my math wrong, you can spend your day's worth of downloading in about 
68 minutes using 2M down.

Amazingly enough, the Shenk death animation still manages to bring the
8800GTX, using a Glide Wrapper, to it's knees. ;)

I'm a bit curious if/when we'll ever see a GPU capable of running the
Shenk death animation without any hickups. That should be the day!

Amazing how such an old game can do that. It has to come down to 
badly-written code IMO. There doesn't seem to be any other reason why a game 
over 5 years old can bring a graphics card 100 times as powerful as those 
available in it's time to a grinding halt.

It's probably that, however, my experience with it also indicated it has 
something to do with the way the architecture of these GPUs has evolved.

I've by now played Diablo II on quite a bit of GFX hardware, and that 
partical piece of OpenGL stress-test actually ran best on the old 
P4-2.4GHz with a GeForce4-Ti4200 card.

When I upgraded it to a 6600GT, the Shenk animation was going slower. The 
7600GT, same CPU, improved it a bit, and now on the Q6600/8800GTX, it's 
even better, but still not as good as on the Ti4200.

When I noticed the lower performance with the 6600GT (totally unexpected, 
since the 6600GT blew the Ti4200 on all fronts out of the water) I 
researched it a bit, and what I can vaguely remember is that the 6600GT 
was an improvement on almost all fronts (more units, each with more 
performance), except for one area, where the Ti4200 actually had more 
units (with of course a lower performance). My 'conclusion' then was that 
the units which were left out when going from the Ti4200->6600GT were 
actually the ones being used a lot for the Shenk Death Animation.

I can't recall more details at the moment, and I also don't have the time 
to look it all up again, so sorry for being so vague. Anyway, this has 
very little to do with SetiBOINC anymore. ;)

Regards, Patrick.