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NASA Hyperwall

PostPosted: Tue Aug 27, 2013 6:08 pm
by DanHouldsworth
Having just read an article about NASA's hyperwall http://www.youtube.com/watch?v=nB1qBsGjAKM on the same day I received shipping confirmation for my cluster of 4 Parallella boards, it's got me thinking about whether this would be an interesting project.

1080p displays are reasonably affordable these days, so a 2x2 grid on the wall - each powered by a one of the Parallella cluster - would be within the realms of a DIY project. And would be a fantastic way to view the output of various other scientific computing projects.

My immediate questions would be the HDMI capabilities given the lack of a GPU. For this to be effective we'd want a frame rate of >50Hz.

If however this is a stumbling block, perhaps each Parallella output stream could feed a RasperryPi which does have a reasonably good GPU.

That would actually make a nice PR demonstration of linking two of the most exiting community projects in computing together, for an affordable DIY Hyperwall. Throw in an Arduino powered remote control and we'd have the hatrick....

Re: NASA Hyperwall

PostPosted: Mon Sep 30, 2013 11:43 am
by stealthpaladin
Hi, I believe that the parallella is able to effectively turn the FPGA into a graphics card with plenty of power to handle HDMI. Someone correct me if I'm wrong please but I believe I have read that about the spec.

Re: NASA Hyperwall

PostPosted: Mon Sep 30, 2013 12:53 pm
by 9600
stealthpaladin wrote:Hi, I believe that the parallella is able to effectively turn the FPGA into a graphics card with plenty of power to handle HDMI. Someone correct me if I'm wrong please but I believe I have read that about the spec.


HDMI is implemented in the FPGA. However, as the OP noted, there isn't a GPU.

Cheers,

Andrew

Re: NASA Hyperwall

PostPosted: Wed Oct 23, 2013 12:08 pm
by DanHouldsworth
Thanks Both,

What would the most appropriate way of outputting 50Hz 1080p? Could it be streamed to RaspberryPi

A large subset of scientific projects are going to require real time computing, and so presumably real time output. And a good subset of that is likely to require visual display so I imagine there's a few addressing this need?

Cheers,

Re: NASA Hyperwall

PostPosted: Wed Oct 23, 2013 12:15 pm
by 9600
DanHouldsworth wrote:What would the most appropriate way of outputting 50Hz 1080p? Could it be streamed to RaspberryPi


I'm guessing you're talking about shodruk's streaming library? This will probably depend on your application(s) and the best place to ask is probably that discussion thread. I must admit that when he announced it I immediately wondered if the library could be used to enable your hyperwall idea to be built :)

Cheers,

Andrew

Re: NASA Hyperwall

PostPosted: Tue Nov 05, 2013 9:52 am
by DanHouldsworth
Thanks Andrew - that does indeed look ideally suited the Hyperwall project!