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nanoprobe
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Re: Over 200'000 ppd at home - This is for you



Your costs would double if you were to start using gpu's in each of those machines!

Cost of what would double?



Power?

There are too many variables in the power area to arbitrarily say that the costs would double.
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Dataman
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Re: Over 200'000 ppd at home - This is for you



Your costs would double if you were to start using gpu's in each of those machines!

Cost of what would double?



Power?

There are too many variables in the power area to arbitrarily say that the costs would double.

True nano, not even close to double. Almost all my machines have 2 cards/machine. On an i7 970, EVGA SLI3 MoBo and with two EVGA GTX460's (standard clock), I would say the increase is more in the 15-18% ballpark based on the readings on my power meter. It is noticable though. I'm sure there are GPU crunchers who have better stat's than I do. However, as with everything in DC-land, it depends on your configuration and the project being crunched.
peace
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OldChap
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Re: Over 200'000 ppd at home - This is for you

For anyone running a core 2 quad or similar, even later cpu that is to some degree overclocked the ball park power consumption increase when adding shall we say an ati 5870 will in effect double the power consumption.

As these GPU projects become available we can all surely refine the numbers but for those considering building a new rig at this time the selection of the right psu for the task is becoming a difficult one.

I envisage people having to add psu's to existing systems that have been built to run efficiently. I say this because that describes my situation quite well.
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sk..
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Re: Over 200'000 ppd at home - This is for you

Adding a Gold PSU usually reduces power consumption somewhat in itself (perhaps 5 or 10%), so some of that extra power usage is offset. These PSU's are often long lasters, 5 or 10years; much longer than the average PSU. They also go a long way to protecting your components, and form experience, I have used high end PSU's in successive generations of computer. So a PSU is a good investment. Search for PSU calculator. I know I posted about this before, perhaps a year or so ago, and I am not the only one.
http://www.thermaltake.outervision.com/
http://www.journeysystems.com/support/calculator/
http://www.extreme.outervision.com/psucalculatorlite.jsp
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[Edit 1 times, last edit by skgiven at Jan 2, 2012 9:13:51 PM]
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mikey
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Re: Over 200'000 ppd at home - This is for you



Your costs would double if you were to start using gpu's in each of those machines!


Cost of what would double?


Power?


There are too many variables in the power area to arbitrarily say that the costs would double.


I was thinking of a new power supply for 1/2 the machines, so not quite double. All the newer gpu's require a 600 or so watt psu and the OP is sharing psu's now. Some people with alot of stuff in their pc's are putting in 1k watt psu's just because they don't want to come up short. And with multiple REALLY high end gpu's a 1k watt psu would be a requirement, that is per machine. There are people out there with 4 top of the line gpu's in a single desktop machine already!
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Hypernova
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Re: Over 200'000 ppd at home - This is for you


I was thinking of a new power supply for 1/2 the machines, so not quite double. All the newer gpu's require a 600 or so watt psu and the OP is sharing psu's now. Some people with alot of stuff in their pc's are putting in 1k watt psu's just because they don't want to come up short. And with multiple REALLY high end gpu's a 1k watt psu would be a requirement, that is per machine. There are people out there with 4 top of the line gpu's in a single desktop machine already!


mikey do not mix the power requirement in terms of PSU and the effective power consumption of a GPU.
When you design your rig you have to put in a PSU that is way higher than your maximum effective consumption. If you are told that for a given GPU model you should have at least 800 Watts PSU this does not mean that you will burn 800 watts. I consider that you should have a total real power consumed (the whole PC, GPU+CPU) not more than around 70% of your PSU, for a Gold Standard high quality power supply. For 800 effective watts consumed (and this is a lot) you would need a PSU of at least 1200 Watts.
To measure use a power meter at the wall socket. First measure without using the GPU and then crunch with the GPU (say at GPUGrid) and check the consumption. You will then be able to deduce what your GPU board does really consume.
By standing far away from your PSU max limit you will have less thermal stress, lower fan noise, longer life and better efficiency.
Do not underestimate the need for good cooling with GPU crunching. It generates a lot of additional heat so a larger box is welcome.
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mikey
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Re: Over 200'000 ppd at home - This is for you


I was thinking of a new power supply for 1/2 the machines, so not quite double. All the newer gpu's require a 600 or so watt psu and the OP is sharing psu's now. Some people with alot of stuff in their pc's are putting in 1k watt psu's just because they don't want to come up short. And with multiple REALLY high end gpu's a 1k watt psu would be a requirement, that is per machine. There are people out there with 4 top of the line gpu's in a single desktop machine already!


mikey do not mix the power requirement in terms of PSU and the effective power consumption of a GPU.
When you design your rig you have to put in a PSU that is way higher than your maximum effective consumption. If you are told that for a given GPU model you should have at least 800 Watts PSU this does not mean that you will burn 800 watts. I consider that you should have a total real power consumed (the whole PC, GPU+CPU) not more than around 70% of your PSU, for a Gold Standard high quality power supply. For 800 effective watts consumed (and this is a lot) you would need a PSU of at least 1200 Watts.
To measure use a power meter at the wall socket. First measure without using the GPU and then crunch with the GPU (say at GPUGrid) and check the consumption. You will then be able to deduce what your GPU board does really consume.
By standing far away from your PSU max limit you will have less thermal stress, lower fan noise, longer life and better efficiency.
Do not underestimate the need for good cooling with GPU crunching. It generates a lot of additional heat so a larger box is welcome.


I am already doing that, I have 4 AMD 5870's crunching...3 with 750 watt psu's and 1 with an 850 watt psu. I also have 7 AMD 5770's crunching with a minimum 585 watt psu in each of those machine, most have a 600 or 650 watt psu. MOST of my machines are Boinc only machines so have little 'extra' stuff in them, some don't even have a cd/dvd as I have an external if I need one. I did get a tester to test the wattage for Christmas, so I will testing each over time. The local mom and pop computer store said they are building dual AMD 5870 machines and are using a 750 watt psu in them and they work just fine. I do not know how much overhead there is left though.

ps...Okay my new X6 rig is up and running with a single AMD 5770 in it and is taking a fairly consistent 300 Watts while crunching on all 6 cores and the gpu too. It has a 750 watt psu in it, 1 hard drive, 1 dvd/rw and 1 gpu so not exactly full of power using things!
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[Edit 1 times, last edit by mikey159b at Jan 6, 2012 1:46:52 PM]
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vinas1
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Re: Over 200'000 ppd at home - This is for you

Hello, this is my first post here.

I started participating in WCG with team XtremeSystems in April of 2010. I have a HVAC/R background with a focus in refrigeration. I am EPA certified on all classes of refrigerants. As a result, I like to build computers with extreme cooling, such as chill water, regular water, TEC, phase, and I dabble with some LN2 based rigs for benching.

I'm 32, married, with our first child due in three weeks. My wife gave me the go ahead some time ago to add new rigs to WCG. Some time last month, we had a push at XS to do more PPD. I retired some of my core 2 based crunchers and replaced them with low cost i5 sandy bridge systems. Right now I have 12 full time crunchers, including my laptop. That, combined with my i7 based rig @ 4.5GHz, lets me do about 200K ppd and sometimes a little over 300K wcg ppd.

I credit people such as my team captain (SierraBound), Movieman, OldChap, and even Hypernova among other team members, for pushing me to attain higher ppd with my little "crunch farm". Almost all of my equipment resides in my unheated garage. So I can really turn things up in the winter time!

It's amazing to see what one can do with some ingenuity and a little determination!

Cheers,
from Detroit
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[Edit 2 times, last edit by vinas1 at Jan 4, 2012 6:30:28 PM]
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Hypernova
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Re: Over 200'000 ppd at home - This is for you

Welcome to the forum vinas1. We are very happy to have dedicated crunchers like you here at WCG. Congratulations for your setup applause . As you can see from this thread, it seems that there are not so many "home" crunchers that post in average 200'000 or more ppd. So your performance is remarkable. Keep up the good work peace
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Re: Over 200'000 ppd at home - This is for you

I am over 200k PPD and break the 400K mark every now and then. I just started mid November so I am just getting started. I started out with folding at home last year with my first ever system I built. Folding got me hooked into the world of distributed computing; it sure is addicting.... I am currently crunching with 5 rigs:

Rig one, server:
Evga SR-2
(2) e5645's (24 threads)
24GB ram
30TB worth of HDD storage

Rig Two, Dedicated Cruncher:
Supermicro quad G34
(4) AMD 6174's (48 cores)
64GB Ram

Rig Three, Dedicated Cruncher:
Supermicro quad G34
(4) AMD 6272's (64 cores)
64GB ram

Rig Four, Crunches most o the time:
i7 2600K @ 4ghz
mITX asrock mobo
GTX 570
8gb ram

Rig Five, Dedicated Cruncher:
i7 990x @ 4.8ghz
Gigabyte OC mobo
6gb corsair GTX4 ram
(watercooled)

I am in the works of building my main rig, it will crunch most of the time while I am using it and all the time while I am not. Its specs are:
Evga SR-2 motherboard
(2) x5670's
(3) evga GTX 580 3gb HC cards
24gb ram
(watercooled)


All these systems are personally mine. I used to have 4 sr-2's, 7 2600k's, 3 980x's, many other i7's ect... But got tired of managing the 20+ systems so I sold / gave away most of the hardware and built 2 G34 systems. Even though my production could be much higher it is easier to manage and my parents power bill is a bit lower whistling

Overall I am loving WCG and hope to further my production to new levels. Maybe someday I will produce as much as you do, but as of now I don't think it is to shabby for only being 15.

-muskie over 'n out peace
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