Call Me Headless Duffer

David Rapalyea
David Rapalyea
Joined: 3 Jan 13
Posts: 79
Credit: 63886821
RAC: 0
Topic 197693

My i-3 used to keep my three ganged GTX-650s running at 90% while only using about 50% processor capacity. Now its sort of the other way around. The two cores can not keep the GPUs fed anymore.

This is not progress.

Arecibo 19 Oct 2012
Just Because The Space Alien Is Green
Does Not Mean You Should Go

archae86
archae86
Joined: 6 Dec 05
Posts: 3157
Credit: 7212784931
RAC: 976733

Call Me Headless Duffer

Across the BOINC empire, the amount of non-GPU resources required to support a GPU job varies rather dramatically from application to application.

Given your configuration, you wish to experiment to see which available type of GPU work you find most suitable, then use the Einstein preference for the location (aka venue) of the host to restrict your incoming work.

In particular, I think you may find the Perseus work requires less of your CPU than does the openCL GRP3 nvidia work.

Stephan Goll
Stephan Goll
Joined: 13 Dec 05
Posts: 25
Credit: 27834196
RAC: 0

Sounds a bit like ...

Sounds a bit like ... Windows? There was a time when the GPU windows applications were running a full core per GPU while the linux application was able to run with less cpu load. I don't know if this is still current information. Maybe you should give a chance to the penguin.
--
Stephan

Logforme
Logforme
Joined: 13 Aug 10
Posts: 332
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You're a headless

You're a headless duffer!

Was that ... ok?

David Rapalyea
David Rapalyea
Joined: 3 Jan 13
Posts: 79
Credit: 63886821
RAC: 0

First a high five to archae

First a high five to archae all my four GPUS are running in the 90% capacity range.

Headless Duffer = My machine is dedicated to running Einstein tasks and routinely has only a power cord and ethernet link attached. Lack of monitor is "headless"
Duffer means I am an amateur.

GPUs = GTX 650 x 3 (cordless)
GTX 660 x 1 (power cord)

Eight tasks running at the same time.
Power Draw is 320 Watts at the outlet.
Production to be determined. I estimate 75-100k cobblestones per day

Processor = i3
PSU = Platinum 400 watt fanless
Mother Board = ASRock Z77 Extreme 7 slot
Case = BMF with seven fans, many disconnected

Arecibo 19 Oct 2012
Just Because The Space Alien Is Green
Does Not Mean You Should Go

MAGIC Quantum Mechanic
MAGIC Quantum M...
Joined: 18 Jan 05
Posts: 1885
Credit: 1396904782
RAC: 1130495

Maybe double up the Ram

Maybe double up the Ram ?

http://einsteinathome.org/host/11455796

David Rapalyea
David Rapalyea
Joined: 3 Jan 13
Posts: 79
Credit: 63886821
RAC: 0

Hi Magic, The four cuda

Hi Magic,

The four cuda rigs seem running near full capacity since I changed projects. The i3 is about 50 percent. The little i3 is not up to all the project types it seems. But this is a purpose built rig for low power consumption which is one reason I chose it.

Right now it is pulling 16 watts feeding four cuda riggs [3 x gtx 650 and 1 x GTX 660] The whole rig is pulling 325W at the wall plug. I am hopeful for a personal best but won't know till the RAC has time to settle out. Last year I was only running three gtx 650s and managed to generate cobblestones at the daily rate of 10,000 using about 30 watts.

It might not work out because the GTX 660 pulls at least twice the power of the GTX 650s but does not do twice the work. Time will tell.

PS: Last year I tried to run four cordless gtx 650s but the bus would only support three. Oddly, the computer did not recognize any of the various corded gtx 650s I have on hand but DID recognize the gtx660. Go Figure.

However, at that time I only had a gold 350 Watt power supply and did not like running so hot and only used three cards. Then the 30gig SSD gagged full for some reason earlier this year so I was off line. Now have a 64 gig SSD. And a platinun 400 watt fanless. In quest for power reduction I even turned off several of seven fans that came with the giant gaming case.

Arecibo 19 Oct 2012
Just Because The Space Alien Is Green
Does Not Mean You Should Go

mikey
mikey
Joined: 22 Jan 05
Posts: 12658
Credit: 1839055224
RAC: 4425

I think what Magic was saying

I think what Magic was saying was try doubling up the ram and see if your pc doesn't have more output. You only have 4gb of ram in that machine and also have FOUR gpu's, that cpu must be working it's little butt off trying to keep up!

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