## Typical Watts Needed For 10K Stones Per Day?

Message boards : Number crunching : Typical Watts Needed For 10K Stones Per Day?
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David Rapalyea

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Message 1332365 - Posted: 28 Jan 2013, 22:57:51 UTC

Being new to this I have a beginners enthusiasm. How much power in watts might be required to produce 10k? Trying to figure out how much space alien I can afford to chase!
ID: 1332365 ·
bill

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Message 1332367 - Posted: 28 Jan 2013, 23:22:14 UTC - in response to Message 1332365.

300
ID: 1332367 ·
Ron
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Message 1332378 - Posted: 29 Jan 2013, 0:09:06 UTC

Your question is wrong. Your account has 16 machines, we say use an average of 100 watts each and produce a RAC of 4100 from the 1500-1600 combined watts.

I have two machines, one is a laptop consuming about 150 watts and its RAC is 6400. The other consumes 550 - 600 watts and its RAC is 56,000.

It isn't a direct connection from watts to RAC, it has much to do with the efficiency of the components in the machine(s). If you go to:
[url]http://setiathome.berkeley.edu/top_hosts.php?sort_by=expavg_credit&offset=1300 [/url] you'll find machines producing near your target.
ID: 1332378 ·
Ianab
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Message 1332452 - Posted: 29 Jan 2013, 7:46:19 UTC - in response to Message 1332365.

Adding a mid range modern CUDA capable video card to one of your existing machines will probably get you close to 10K and only use maybe an extra 100w of power.

The machine will need a 350-400w power supply, but even running at 100% it's probably only going to draw 200w from the wall, compared to the 100w that a core 2 might normally draw.

But you take you RAC from 2,000 to 10,000.

Ian
ID: 1332452 ·
Ex: "Socialist"
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Message 1332454 - Posted: 29 Jan 2013, 7:52:52 UTC

This question is an oxymoron.

Typical?

Lol.

There is such a HUGE difference in hardware out there that you could do 10k/day with very little wattage if you research and buy an energy efficient GPU.

With CPUs it's going to take far more electric, and it takes a relatively decent CPU to do 10k/day.

I wish I had more experience with cards, but it's safe to say with a middle of the road video card, you could do well over 10k/day with about 300-400w being drawn from your outlet.

Edit] What Ianab said^ lol

As far as bang-for-buck, even two 50\$ Nvidia gt630 will kick the heck out of an eight thread CPU.
#resist
ID: 1332454 ·
hbomber
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Message 1332483 - Posted: 29 Jan 2013, 11:40:16 UTC

2500K CPU at 4.5-4.6 GHz does 10K+ for 100 watts.
HD 5770, AstroPulse only, 80-85 watts, 12K+.
GTX 650Ti, 60-70 watts, ~12-15K.

Just few examples.
ID: 1332483 ·
tullio
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Message 1332494 - Posted: 29 Jan 2013, 12:06:07 UTC

I am running 7 BOINC projects. Only 2 of them (SETI and Einstein) could use a GPU. Why should I put a GPU card in my 2 systems? The first CPU (vintage 2008) uses 75 W, the second (vintage 2012) 18 W with equal performances. I put a solid state disk in it and it burns less than with hard disks. They both work 24/7.
Tullio
ID: 1332494 ·
HAL9000
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Message 1332501 - Posted: 29 Jan 2013, 14:17:32 UTC

I have a wide range of hardware that I use for crunching which you can see here.
The 5 i7-860 machines have a RAC of about 8000, running 8 CPU tasks at once, & uses around 100 watts.
The dual Xeon E5645 server has a RAC of about 16K, running 24 tasks at once, & uses around 300 watts.

In testing at home I did find my old Pentium M notebook was about as efficient at my Core 2 Duo E8500 system in terms of power to credit. Pentium 4's are several order of magnitude less efficient than the newer core designs & GPU's are on a whole other level in terms of power to output.

EDIT:
If you goal is to have RAC of ~10K you could purchase 1 modern GPU can easily exceed that using less power than some of the single systems you currently have. The duty cycle you run your systems also will be a factor. Using 100w 24/7 is around 73KWh with my rates of ~\$0.18 that is about \$13/mo. So 10 100w systems would run about \$130/mo. A 100w system with a 150w GPU would be around \$33/mo.
SETI@home classic workunits: 93,865 CPU time: 863,447 hours
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ID: 1332501 ·
Oz

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Message 1332513 - Posted: 29 Jan 2013, 15:07:14 UTC

I agree with all those above, but let me answer another way. Using a current gen intel cpu coupled with an efficient [see link above] gpu, it would be easy to exceed 10K/day while using 200 watts [2.4 KW hours/day running 24/7] or less. Probably much less especially if the system shuts down the monitor or better yet, you turn it off.

YMMV

Oz

ID: 1332513 ·
James Sotherden

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Message 1332528 - Posted: 29 Jan 2013, 16:11:46 UTC

You could buy or build an iIntel I7 3770. The one I built is currently running with HT on and no overclock without Lunatics Op apps is doing 5,000 rac by its self.

I dont know what the wattage is as Im to lazy to hook my killawatt up to it. I do have a EVGA 550 TI that I havent installed yet that is supposed to pull about 145 watts If i remenber correctly.
I would say that by just getting one good I7 and adding a GPU to it you will get your 10,000 rac and then you can unpower all those others and save some electrical costs.

Or you could find a I7 920 and buy a Nvidia GE Force GTS 250 like I have and I know you can do 10,000 rac on that.
[/quote]

Old James
ID: 1332528 ·
ivan
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Message 1332550 - Posted: 29 Jan 2013, 20:42:29 UTC - in response to Message 1332528.

You could buy or build an iIntel I7 3770. The one I built is currently running with HT on and no overclock without Lunatics Op apps is doing 5,000 rac by its self.

I dont know what the wattage is as Im to lazy to hook my killawatt up to it. I do have a EVGA 550 TI that I havent installed yet that is supposed to pull about 145 watts If i remenber correctly.

This laptop is hooked up to a power meter and typically pulls just under 100 W whilst crunching -- and it isn't running S@H 24/7, because it gets transported to and from work and is pressed into other duties ranging from videoconferencing to digital hologram reconstruction during the day. But, average credit is around 15,000/day.

Mind you, it did cost over £1,000!

ID: 1332550 ·
David Rapalyea

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Message 1343952 - Posted: 8 Mar 2013, 4:04:16 UTC - in response to Message 1332378.

Hi,

There has been enough time to get some actual figures from the HP core duo computer farm. Without CUDA they RAC about 1,500 each at 70 Watts. I have added both GT610 [48 CUDA] and GT620 [96 CUDA] to several of them without much difference between the two. After some time they both RAC about 4,600 each. [I am doing mostly Einstein work now.] Theses are small form factor machines with 240 watt power supplies so I can't go with the full size CUDA cards with them.

The machines with the GT610 draw about 90 Watts at the plug. The GT620s about 20 watts more. Accordingly I have shut down all the non CUDA machines and have a few more experiments to run. For instance, I will try a GT630 [96 CUDA but with 128 bus]. Perhaps it can get at the extra 48 CUDAs the GT620s seem to miss. It could mean a RAC of about 9,000 at about 120 watts.

I also bought a full hight HP core duo floor model and installed a cheap GTS450 with 192 CUDA. I think it will RAC out at about 15-18K but needs a much better power supply. I ordered a 'Gold Star' unit and it might provide that RAC with less then two hundred watts. All my stuff so far has been cheap since I am in the experimental phase of this new hobby. All of the machines ran about \$100 delivered and I am stuck with them now. But they are almost all relatively power efficient, so THATS a plus.

The next few weeks will tell. Even with all this hodge-podge I have managed about 1.5 million stones, almost all of it in the last eight weeks. I ranked number 4004 out of about 2.5 million in RAC, and don't even know what the hell I am doing! I suspect I am entering an area of diminishing returns.

ID: 1343952 ·

Message boards : Number crunching : Typical Watts Needed For 10K Stones Per Day?