Gridcoin GPU mining - Heating Up Your Living Room with Computational Science by vortac

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gridcoin · @vortac · Sep 17 '16 (edited)

$22.53

Gridcoin GPU mining - Heating Up Your Living Room with Computational Science

<html>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.upslike.net/imgdb/GRC-515f7b.png"/></p>
<p><br></p>
<h1>Gridcoin - scientific benefit through mining</h1>
<p>Winter is coming to Northern Hemisphere and, soon enough, all sorts of heaters will start consuming a lot of electric energy. But what if you could get paid for electric energy you spend on producing heat? And even more important, why use all that electric energy just to turn some metal red-hot? What if it could be also used for some useful scientific computations and advancing biomedicine, mathematics and technology in turn? Sounds like science-fiction? It's possible today with <a href="http://www.gridcoin.us">Gridcoin</a> - a digital currency which is securely rewarding <a href="http://boinc.berkeley.edu">BOINC</a> computations on top of Proof-of-Stake.</p>
<p><br></p>
<h1>GPU mining and the power/heat issues</h1>
<p><a href="http://boinc.berkeley.edu">BOINC is an open-source software platform</a> for computing using volunteered resources. There are many different <a href="http://boinc.berkeley.edu/wiki/Project_list">BOINC projects, covering all fields of science</a>. Many popular BOINC projects have both CPU and GPU applications, enabling you to contribute some serious computing power to the scientific projects of your choosing. However, that computing power comes at a price - modern graphic cards consume a lot of electric power, up to 300 watts when overclocked and running BOINC GPU applications (which are usually very demanding and thus power hungry). If you have four such graphic cards in your PC, that's 1200 watts just for your GPUs and all that power gets converted to heat eventually. It's impossible to dissipate so much heat just with air-cooling, but it's certainly possible with water.&nbsp;</p>
<p><br></p>
<h1>Watercooling your BOINC/Gridcoin machine</h1>
<p>Watercooling enables you to build an extremely powerful PC, at acceptable noise-levels and aesthetically unobtrusive. Such machine can then be placed in your living-room, without making it look like a workshop.&nbsp;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.upslike.net/imgdb/4x7970-a82554.jpg"/></p>
<p>Four graphic cards (AMD Radeon HD7970) with waterblocks and a bridge, ready for installation in PC case</p>
<p><br></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.upslike.net/imgdb/e86da5-8a732a.jpg"/></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Four graphic cards, installed in PC case, with some tubing already connected</p>
<p><br></p>
<p>&nbsp;&nbsp;<img src="http://www.upslike.net/imgdb/connected-18a174.jpg"/></p>
<p>Everything is fully connected here. Only the biggest cases will have enough room to comfortably fit so many components. This is Silverstone TJ07 which is medium-sized, so it's messy with so much stuff inside. However, with watercooling, airflow inside the case is of little importance - heat is carried away by water, flowing through the tubes and waterblocks. So you can just close the case and forget about cable-management :)</p>
<p><br></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www4.slikomat.com/13/0306/1uy-201602.jpg"/></p>
<p>Fully assembled watercooled PC, with two 480mm radiators and a reservoir (blue cylinder) outside the case</p>
<p><br></p>
<p>&nbsp;&nbsp;<img src="http://www.upslike.net/imgdb/179-201602-37fe1d.jpg"/></p>
<p>Another view of the whole desktop, placed inside the living room. Looks normal enough :)</p>
<p><br></p>
<p>Full specs of this machine:&nbsp;</p>
<p>- CPU Intel Core i7-5930K Haswell-E&nbsp;</p>
<p>- ASUS Rampage V Extreme X99&nbsp;</p>
<p>- Corsair Dominator Platinum 16GB DDR4 3000MHz 4x4GB Kit</p>
<p>- 4 x AMD Radeon HD7970</p>
<p>Power consumption is at 1150 watts altogether, even when GPUs aren't overclocked. I measure the power consumption through two APC UPS, which provide backup power for my desktop PC:</p>
<p><img src="http://www.upslike.net/imgdb/UPS-796bc5.jpg"/></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pulling 1154 watts from the wall, under moderate BOINC load</p>
<p><br></p>
<p>With water, it's possible to cool any PC you can possibly build with today's technology. Here is a short Youtube video of four HD7990 graphic cards, cooled by nine 360mm radiators (not mine unfortunately):</p>
<p>https://www.youtube.com/watch?v=HiWRt2aL9tg</p>
<p><br></p>
<h1>Gridcoin mining and earnings</h1>
<p>I am currently running <a href="http://milkyway.cs.rpi.edu/milkyway/">Milkyway@home</a> BOINC project on my desktop. Milkway@home is creating a highly accurate three-dimensional model of the Milky Way galaxy and is particularly well-suited for HD7970 GPUs, which have very high FP64 (double-precision) performance, which is in turn required for computations performed by Milkway@home. With such a setup, it's possible to earn about 250 Gridcoins (GRC) per day. At present prices, that's worth about 2 USD. Unless you have some really cheap electric energy in your area, that's not nearly enough to cover your electric bill. But, with 1200 watts of heat getting dumped in your living room all the time, there is very little need for any extra-heating during the winter (I live in Mediterranean Europe, so winters are generally mild here). Of course, there are many crypto-coins out there which use Proof-of-Work and which can also use your GPUs for mining. But only Gridcoin can reward actually widely useful scientific computations performed by BOINC. So, in fact, I am using computational science to heat up my living room, and if you ask me, that's way more cutting edge than running repetitive Proof-of-Work hashes.&nbsp;</p>
<p><br></p>
<h1>Recognition for your contribution to science</h1>
<p>Some other BOINC projects, <a href="http://www.einsteinathome.org">like Einstein@home</a>, go far further in recognizing your contribution to science. If you happen to discover a new binary radio pulsar, new gamma-pulsar or a new source of gravitational waves (Einstein@home is looking for such things), your name will be published in <a href="http://iopscience.iop.org/article/10.1088/0004-637X/774/2/93/meta">The Astrophysical Journal </a>(a very prestigious scientific publication), as a co-discoverer. You will also receive <a href="https://einsteinathome.org/content/more-discovery-certificates">a discovery certificate</a> from the project scientists.</p>
<p>More interested in mathematics? If you happen to find a new large prime-number (through <a href="http://www.primegrid.com">PrimeGrid BOINC project</a>), your name will be published in Chris Caldwell's <a href="https://primes.utm.edu/primes/">The Largest Known Primes Database</a>. Both Einstein@home and PrimeGrid (<a href="http://www.gridcoin.us/Guides/whitelist.htm">and 28 other scientific projects</a>) are whitelisted by Gridcoin, meaning that if you are running either (or both) of them on your PC, you will also receive Gridcoins as a reward for your computing efforts.</p>
<p><br></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<img src="http://www.upslike.net/imgdb/Gridcoin728x90_32-ef779d.jpg"/></p>
</html>

👍 berniesanders, wang, nextgencrypto, silversteem, silver, anonymous, justin, steemservices, timsaid, nextgenwitness, scrawl, vortac, thedarkestplum, gridcoinman, thecurator, lemouth, cm-steem, stevescoins, murh, rozo, sc-steemit, leonaugus, lloyddavis, koskl, fkinglag, pine, bubu1uk, barton26, crimson, garik100, zodiac, cassidy1, lafilip, atlantictech, stefano81, kuradikurat, djdavidi, jebbuhdiah, jimbo88, chronosamoht, eliowilson, fran2k

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@barton26 · Oct 2 '16

I'm going to be loving all the heat my GPUs put out this winter in the chilly Northeast (U.S.).  Glad to see others are putting their "waste" heat to work!

👍 vortac, barton26

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@cm-steem · Sep 18 '16

Very cool rig! :D

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@gridcoinman · Sep 17 '16

Awesome post man, I didn't know that your name could be published if you discovered something on Einstein@home.

👍 vortac, barton26

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@peppernrino · Sep 18 '16

also Primegrid, if you discover a new prime number. :)

👍 barton26

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@vortac · Sep 21 '16

Here is a list of Top Prime Finders:
http://www.primegrid.com/primes/?section=topusers&by=score

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@vortac · Sep 17 '16

Oh yes, they have been doing that since 2010. when a first binary-radio pulsar was discovered by Einstein@home volunteers (or citizen scientists, as they often call them). Here is a complete list of all Einstein@home publications and reports so far:
https://einsteinathome.org/science/publications

👍 bubu1uk

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@jedigeiss · Aug 10 '17

$1.70

Hi @vortac , impressive machine you got there... Its not only the 7970 that are perfectly up for the double precision FP64 job. All the Tahiti Chips have extraordinary power on this field of calculations, even the Tahiti LE that has been used in the 7870 XT cards. It is a bit slower tough but still very far ahead from a lot of more recent cards. 
7870 ->748.8 GFlops
7970 -> 947.2 GFlops
as a comparison : the normal 7870 GHz Edition with the Pitcairn Chip has 160 ..
So all you out there if you got an old graphics card with a Tahiti Chipset or even a New Zealand one (7990) get them out and crunch Milkyway :)

👍 vortac

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@vortac · Aug 11 '17

Heh, 7870 XT was a mid-range GPU even then. It's funny to see it outperforming modern GPUs today, even if it's only FP64 performance that is superior.

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@jedigeiss · Aug 11 '17

Yeah well it was the upper end of the midrange but you're absolutely right. It's not only funny it's also someway creepy If you see all those nice shiny monsters of graphic cards and in fp64 they only see the back of quite old cards. 
On the other side those old beasts soak power like hell :)  I don't know exactly about the 7970s but I guess they are also quite hungry ;)

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1 reply

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@rozo · Sep 30 '16

Awesome post that is one hell of a rig!! What kind of temperatures are you getting out of that mining?

👍 vortac

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@vortac · Sep 30 '16

Even with extreme overvolting, overclocking and pushing the power limit to +50%, the GPU temperatures never go above 60 degrees Celsius. With watercooling, maximum power draw becomes the biggest restriction - you can't push unlimited watts through your components, even if they are running cool. At X volts or Y watts, they will start to produce errors and/or degrade quickly. I am preparing new articles about that and about other aspects of serious BOINC/Gridcoin GPU mining, stay tuned.

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