Guide to running multiple GPU work units

[ThE_MaD_ShOt]

If you can put a 7770 or 7850 in a quad system and run 3 wu's and only do gpu wu's it works like a charm. Also you cpu load never goes over 50% which keeps it nice and cool and it will use all the cores. This is the way I did with my 7850 system and the thing runs very cool. Also the system is very usable. You hardly notice and lag from it even with running 3 wu's on the gpu.

[da_vid]

what is the price of electricity in the usa ??

[BUCK NASTY]

Originally Posted by [Ion]

That's really phenomenal. Yes, GPUs are fast, but 120k PPD (or more) seems all but unbelievable from just two cards. That's a million points a week from one rig....or about eight times what I accomplished with the PentDCs.

Wow..just beautiful!
These HD7770s are pretty much just too good to pass one--does anyone know about the effects of running nV and AMD cards in one rig for WCG?

Yeah, less power than two of the SB setups, and nearly 10x the output! A hard thing to beat!


Aren't you approaching 2000w at this point with the two 4P rigs?

I'm around 1800W with both 4P rigs. Should cost about $180.00 to run both rigs 24/7. Huge difference in price is I have Tallahassee Utilities now(cheaper rates by .02/KW) and they do not penalize and charge a much higherrate for over 1500W/household like FPL did. Plus is I have heat for the winter.

[[Ion]]

Originally Posted by ThE_MaD_ShOt

If you can put a 7770 or 7850 in a quad system and run 3 wu's and only do gpu wu's it works like a charm. Also you cpu load never goes over 50% which keeps it nice and cool and it will use all the cores. This is the way I did with my 7850 system and the thing runs very cool. Also the system is very usable. You hardly notice and lag from it even with running 3 wu's on the gpu.

Well, I'm certainly not interested in giving up on CPU crunching. I may move the GTX470s to the i920 rig to that I have a more usable desktop, but I'm certainly going to leave the other four threads crunching regardless. Heat and power usage aren't really a concern for me ATM, and I'd like to support the other projects (and get my badges in them). But I could definitely see running 3 HCC GPU WUs on a HD7770 or HD7850 and then 5 WUs on the CPU as well

Originally Posted by da_vid

what is the price of electricity in the usa ??

Here in central NC we pay about 9-10 cents/kWh.

Originally Posted by BUCK NASTY

I'm around 1800W with both 4P rigs. Should cost about $180.00 to run both rigs 24/7. Huge difference in price is I have Tallahassee Utilities now(cheaper rates by .02/KW) and they do not penalize and charge a much higherrate for over 1500W/household like FPL did. Plus is I have heat for the winter.

I guess that isn't too bad then. A third of your previous bill is no laughing matter. Why wasn't TU an option before? And does it ever get cold enough in FL for you to even need heat?

[da_vid]

@[Ion]

twice as me

[[Ion]]

Originally Posted by da_vid

@[Ion]

twice as me

You pay ~4.5 cents/kWH in Canada?

Not only do you get wicked cheap electricity, but you can use the computer to heat the house nine months out of the year

For now though, I'm in a university dorm, and electricity is free

[ThE_MaD_ShOt]

And he gets snow. A lot of friggin' snow. Lucky guy.

[da_vid]

based on 1 day 5 cent for the first 30/kwh 4 cent for the other kwh

[da_vid]

2 adult, 4 1/2 apartment ,3 Rigs 24/7 max 85$ for 57 days

[KieX]

Originally Posted by BUCK NASTY

I remember my GPU folding days. i was easily using in excess of 2500 watts 24/7. Electric bill was like $600 USD. Not very sustainable...

Originally Posted by [Ion]

Here in central NC we pay about 9-10 cents/kWh.

Originally Posted by da_vid

@[Ion]

twice as me

You guys have it too good lol. We get tiered costs here, the first units cost more than the subsequent ones. Makes it quite hard to know how much it's really costing since it seems to change each time. On average.. looking at about 13p (20 cents) per kWh.

The good ol SB fleet was about 300$ a month. Once this SR-2 is the sole cruncher left.. looking at maybe 100$. Too bad there's a 8% price hike coming, gonna need to limit the hours of use

[da_vid]

we have many hydroelectric dam and we produce more than we use,we sell the extra to the u.s (vermont,new york) it our collective wealth,clean energy

[[Ion]]

Originally Posted by KieX

You guys have it too good lol. We get tiered costs here, the first units cost more than the subsequent ones. Makes it quite hard to know how much it's really costing since it seems to change each time. On average.. looking at about 13p (20 cents) per kWh.

The good ol SB fleet was about 300$ a month. Once this SR-2 is the sole cruncher left.. looking at maybe 100$. Too bad there's a 8% price hike coming, gonna need to limit the hours of use

That's really quite the improvement in power usage

If you need to sell more systems...

Originally Posted by da_vid

we have many hydroelectric dam and we produce more than we use,we sell the extra to the u.s (vermont,new york) it our collective wealth,clean energy

Yes, you guys do a great job with green energy. I wish we'd do that--but when there's still a national debate about whether global warming is a conspiracy or not, it seems unlikely

Canada really would be such a marvelous country to live in for so many reasons

[mstenholm]

Originally Posted by [Ion]

These HD7770s are pretty much just too good to pass one--does anyone know about the effects of running nV and AMD cards in one rig for WCG?

Yes Bun-Bun does it - "My one rig has a GTX670 and a Radeon 7850 crunching fine. However in order get get both working with app_info I had to create two instances of boinc. One with ATI app_info and the other with Nvidia app_info. I tried combining them but it wouldn't get any nvidia WU's. Been running two days like this. " from http://www.xtremesystems.org/forums/...o-files/page2&

[[Ion]]

Originally Posted by mstenholm

Yes Bun-Bun does it - "My one rig has a GTX670 and a Radeon 7850 crunching fine. However in order get get both working with app_info I had to create two instances of boinc. One with ATI app_info and the other with Nvidia app_info. I tried combining them but it wouldn't get any nvidia WU's. Been running two days like this. " from http://www.xtremesystems.org/forums/...o-files/page2&

Thank you!

In that case, I might just have to put the 3rd slot in the i860 to use

[BUCK NASTY]

I tried creating a boinc_2 folder and using a script to run 2 boinc mgr's simultaneously that allows 2 WU's per GPU. This is an alternative to the app_info hack. Here's the link:http://www.xtremesystems.org/forums/...pp_info-method. I'm getting an error when launching from the script, but still working on it.

[KieX]

Originally Posted by BUCK NASTY

I tried creating a boinc_2 folder and using a script to run 2 boinc mgr's simultaneously that allows 2 WU's per GPU. This is an alternative to the app_info hack. Here's the link:http://www.xtremesystems.org/forums/...pp_info-method. I'm getting an error when launching from the script, but still working on it.

Will add that to the OP, had it linked before but had no idea if it worked. Good to know that it does.

[mstenholm]

Got a new 7770 coming tomorrow. This time it will be in my new work PC (i7-920 to replace my dying e8400 rig) so I can monitor it more closely. I might try a "dual WCG set-up" if the 3 GPU simultaneous run refuses to pick up new WUs. When I get it running one way or the other my 970/680 rig will return to folding. It "only" does 15k PPD

[Mindweaver]

Monday I'm going to start working on my 970 w/ GTX480 crunching multiple WU's.

EDIT: KieX I still can't get over your rig doing over 100k PPD.. That's awesome brotha! How many 7770 do you have on that machine?

[[Ion]]

Originally Posted by Mindweaver

Monday I'm going to start working on my 970 w/ GTX480 crunching multiple WU's.

EDIT: KieX I still can't get over your rig doing ove 100k PPD.. That's awesome brotha! How many 7770 do you have on that machine?

He has three going. Incredible PPD for GPU-only crunching on that

[Mindweaver]

Originally Posted by [Ion]

He has three going. Incredible PPD for GPU-only crunching on that

That's just crazy what those little cards can do!

[KieX]

Originally Posted by Mindweaver

That's just crazy what those little cards can do!

Yeah they're great little things, even I'm amazed at the 100K output. Between 33-36K each. Comes at a great time too, since I had to sell off most of my old farm and the 260W it uses is reasonable affordable.

They can run 4WU but the time penalty meant no improvement over 3WU, not even returned units per day. Just encountered my first "no tasks" but setup a WCG profile as ThE_MaD_ShOt suggested, and seems to have worked.

[BUCK NASTY]

Has anyone with Nvidia clients got more than 1 WU running? I'm getting errors with the XS script hack, so thinking of going back to this format for multiple GPU WU's.

[[Ion]]

Originally Posted by BUCK NASTY

Has anyone with Nvidia clients got more than 1 WU running? I'm getting errors with the XS script hack, so thinking of going back to this format for multiple GPU WU's.

I'm hoping to test on the GTX470 rig later. Depends on how long studying takes. The i7-860 is too unreliable ATM for it to be useful for this, but I should be able to get some good results from this

[BUCK NASTY]

Well, came home from work to 2 rigs sitting idle with no work. It's back to a single instance for me. I should have my Son's spare HD6850 in a week, so i might try it on that card.

[dude12564]

Originally Posted by [Ion]

You pay ~4.5 cents/kWH in Canada?

Not only do you get wicked cheap electricity, but you can use the computer to heat the house nine months out of the year

For now though, I'm in a university dorm, and electricity is free

Its's different in Toronto.. we have electricity pricing based on when you're using it (Time of Day)

Ranges from 6.5 cents / kWh to 11.7 cents..

http://www.torontohydro.com/sites/el.../TOURates.aspx