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Question

HOW DO I CLUSTER PC'S TOGETHER????

by F-1DeskLamp / April 28, 2016 1:44 AM PDT

I don't think that I need much data storage for this project. 500 GB is probably enough. So if I could just slap together enough RAM, CPU, Graphics Cards, and monitors, that would be great.

I don't care how this looks at all. It can look like a scrap heap on a cat scratch pole for all I care. I just don't want a lot of useless parts on it like too much Hard Drive, too much Mother Board, Power Supplies, Cases, Disc Drives or whatever else is useless to my cause.

I want 8-9 monitors to light up on the tree all at once with only one power switch to compute Wall St. trading software and charts. This doesn't need to be the monster truck behemoth gamer rigs or nothing heavy duty like that with airplane props blowing and police infrared scanners flying over head looking for hydroponic growers because the electric bills are so high.

I want this to be strong without any lag, but I don't want to waste a lot of electricity since it's going to be on all of the time.

Cheap and smart. That's all.

Last but not least I want this to be as cheap as possible from Ebay, Craigslist, computer recyclers/junkyards and similar. This is my personal "learn how to make computer frankensteins for absolute cheap as possible" project for me, and I may make a video about it, so other people can do the same. With so many people out of work, this may be something helpful to some good families out there, and I'll become a better Computer Jedi Knight so to speak.

Thanks

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All Answers

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Answer
Re: monitor
by Kees_B Forum moderator / April 28, 2016 2:01 AM PDT
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Answer
2 lines of thought here.
by R. Proffitt Forum moderator / April 28, 2016 9:41 AM PDT

1. Driving 8 or more displays from one PC is, well, going to take a lot of video cards.

2. So let me share that if I wanted some sort of video wall that presented stock info, I would not connect all the displays to a PC. I'd look at a network of Rasberry Pi's driving displays. Example at https://www.google.com/search?q=piwall&biw=1536&bih=731&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi1-NHT4rHMAhVR_mMKHZJJB0UQ_AUIBygC&dpr=1.25

OK, so the PC can remain at the center of all this and the Pi's pick up and display what the PC has put in each Pi's video queue. You have a lot of software to write but hey, it will be pretty cheap.

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What is cheaper? Pi's or VG Cards?
by F-1DeskLamp / April 28, 2016 6:16 PM PDT

I'm really a noob to it all. I've been using computers since the 90's in High School, but as far as hardware and code I've only been easing into it in the last year just because my work occupations are giving me room to take the time, and study computer science.

Any kind of lesson or tips you can point out would really help. I plan on becoming a pro like the Razor Heads light years ahead of me already. Computer Science is intrinsic to the new world, and it's a key to entrepreneurship these days.


So would I pile up 8 Pi's for eight monitors? I can see that GitHub and probably more are putting the code online for free for this kind of thing.

Or how about some $40 Graphics cards from Ebay and Craigslist? How many of those can I put on one rig as far as CPU, Motherboard, RAM, and Power Supply will allow per PC? It seems like salvaging this kind of thing may be cheaper and more interesting to me at the beginner level I'm on.

This is really, really interesting stuff. I've ran a few businesses, and I'm a Wall St trader online and a frequent contributor to CNBC. This is how I'm paying my way into this field of study.

Thanks

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From my view, Pi's
by R. Proffitt Forum moderator / April 28, 2016 7:21 PM PDT

Why? Because getting that many into a PC would mandate one of those Industrial model motherboards. Here I thought you wanted a simple cheap solution. To me this is a Pi driving a display and YOUR CODE that reads from some server (your PC?) and shows what you want to show.

Since this is what we call distributed computing, you have an army working at your displays rather than one PC.

Links? I gave a start with the PiWall link.

40 bucks gets you a leading edge Pi so cost wise I think it's less overall.

-> One thing. You or someone will have to write some code to make it do what you want. But you would have to do that on a PC anyway.

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Are there code dumps online?
by F-1DeskLamp / April 29, 2016 1:53 AM PDT
In reply to: From my view, Pi's

I seem to remember something about how people salvage scripts to make something rather than everyone re-writing the same things over and over.

I take your advice, pal. Don't get me wrong. I'm not some ungrateful MF'er, but what about I keep asking the questions, and you entertain the thoughts for a sec.

8 Pi's run about $350 plus all of the cables and power cords - $400. That's new gear! I have to code it too. I can't speak computer logic yet. My head's already hurting thinking about this situation.

I think I'm cheaper than that.

2 Used Dell PC for $50 each
4 Used Graphics Cards $40 each

That's half the cost. I just put 2 Graphics Cards in each PC, and run 4 monitors out of each PC. I also don't have to write a single code, so it's quicker and immediate at my golden level of beginner computer craftsman. That way I can just hook up my money making rig to Wall St, and I can continue to study coding, ethical hacking, and hardware like is my dream theme.

Is it possible? I could just buy another Dell PC. I could possibly just put one Graphics Card on each with the original port, and run 3 monitors out of each Dell PC giving me 9 monitors total. I won't have one switch, so I'll just put them to sleep when not in use one at a time.

That makes:

3 Dell PC's $50 x 3 = $150
3 Graphics Cards $40 x 3 $120
No extra cable costs
Total about $300

I hate to bug everyone about all of this. I've been chatting with people about learning different trades on line since 2004, and this is how I learn so much.

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Sadly a code dump is usually just that.
by R. Proffitt Forum moderator / April 29, 2016 10:20 AM PDT

Since you know what you want it to do, finding a code dump would not result in what you envision.

You wrote above about power requirements. Old PCs are 200 or so Watts and Pi's or well, you looked and found them in the 10 Watt range.

It appears you have a plan so why not go with it?

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