Parallel Process with U3's

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Parallel Process with U3's

Unread postby kyij » Fri Jan 10, 2014 11:04 pm

Curious to know if this have been tried yet. I have not done much Parallel computing in past, but figured these would be great for test dummies for a Debian Beowulf install.

What would the easiest way to power all of them? Each have there own power supply seems silly..

Or do others think this will fail anyway for other reasons?

Thanks, I just got curious as I have wanted a Pi like pc for a while and came across these.
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Re: Parallel Process with U3's

Unread postby robroy » Sat Jan 11, 2014 12:44 am

There is an article in the January issue of Odroid Magazine that covers the use of Odroids in High Performance Computing. February will features a guide to setting up an HPC cluster at home.
Rob Roy, Editor-in-Chief of ODROID Magazine (submit an article | make a donation)
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Re: Parallel Process with U3's

Unread postby kyij » Sat Jan 11, 2014 4:30 pm

It has decent beginner info but not completely what I was going for but it did answer some questions.

Although I will not get all of the answers until people start actually getting these and play around with them.

Just the question depends on how many to get.. 1 or 10? ;)
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Re: Parallel Process with U3's

Unread postby mdrjr » Sat Jan 11, 2014 9:42 pm

I would use any descent 5V 20A PSU to power 10x U3
and keep using blocks of 5V 20A to power blocks of 10x U3.

We have clusters of U2 and XU that are known to work.
Example? Archlinux ARM is build on a cluster of 7x XU
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Re: Parallel Process with U3's

Unread postby kyij » Sun Jan 12, 2014 8:53 am

mdrjr wrote:I would use any descent 5V 20A PSU to power 10x U3
and keep using blocks of 5V 20A to power blocks of 10x U3.

We have clusters of U2 and XU that are known to work.
Example? Archlinux ARM is build on a cluster of 7x XU


That makes obvious sense as 2A * 10 = 20A. Although these need to be plugged in with a 2.5mm x .8mm adapter, and unless you custom make one, I do not see many adapters that are make to work like that with 10 leads like so?

Edit- Unless you get the usb cables and a powered hub?

So something like so: (ebay links)
1* [url="http://www.ebay.com/itm/New-10-Port-High-Speed-USB-2-0-Hub-Expansion-Power-Adapter-for-Notebook-PC-/360671869028?pt=US_USB_Cables_Hubs_Adapters&hash=item53f9b7f864"]10 port usb hub[/url]
1* [url="http://www.ebay.com/itm/5V-DC-20A-DC-Power-Supply-100W-120-240AC-Input-Fast-Ship-US-SELLER-/171183710698?pt=LH_DefaultDomain_0&hash=item27db5821ea"]Power Supply (5v & 20a)[/url]
10* [url="http://www.ebay.com/itm/390727772520"]2.5x.8mm USB cords[/url]

And just take the given power cord for usb hub and hook it up the PSU.. but that might be too many amps over such a little wire?
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Re: Parallel Process with U3's

Unread postby mdrjr » Sun Jan 12, 2014 10:20 am

Hmm.. the same connector for the Motorola Xoom charger works :)
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Re: Parallel Process with U3's

Unread postby kyij » Sun Jan 12, 2014 5:58 pm

mdrjr wrote:Hmm.. the same connector for the Motorola Xoom charger works :)


That does not help when I do not have one.. :o

I found the USB version on ebay for $1.. I am sure it will cheaper by the bundle.

I do not think the funds are available right now for 10, but I may get several to play with. When I get more confident with these types of devices, I may buy a bunch of U4's next year :D
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Re: Parallel Process with U3's

Unread postby mdrjr » Sun Jan 12, 2014 11:47 pm

To make it easier?
Its the same connector as the Chromebook ARM uses to charge.

PSU voltage is different.. but the connector is the same
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