[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/includes/bbcode.php on line 483: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead
[phpBB Debug] PHP Warning: in file [ROOT]/feed.php on line 173: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823)
[phpBB Debug] PHP Warning: in file [ROOT]/feed.php on line 174: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823)
Parallella Community Supercomputing for Everyone 2017-08-31T18:44:32+00:00 https://parallella.org/forums/feed.php?f=13&t=4157 2017-08-31T18:44:32+00:00 2017-08-31T18:44:32+00:00 https://parallella.org/forums/viewtopic.php?t=4157&p=19518#p19518 <![CDATA[Re: Pixel math-function graph using headless and framebuffer]]> Statistics: Posted by claudio4parallella — Thu Aug 31, 2017 6:44 pm


]]>
2017-08-31T08:55:50+00:00 2017-08-31T08:55:50+00:00 https://parallella.org/forums/viewtopic.php?t=4157&p=19515#p19515 <![CDATA[Re: Pixel math-function graph using headless and framebuffer]]> I'll google in the meantime....
thanks
Claudio

Statistics: Posted by claudio4parallella — Thu Aug 31, 2017 8:55 am


]]>
2017-08-31T00:05:53+00:00 2017-08-31T00:05:53+00:00 https://parallella.org/forums/viewtopic.php?t=4157&p=19514#p19514 <![CDATA[Re: Pixel math-function graph using headless and framebuffer]]>
Do whatever works for you. It's not as responsive as a native display.

Statistics: Posted by jar — Thu Aug 31, 2017 12:05 am


]]>
2017-08-29T20:50:40+00:00 2017-08-29T20:50:40+00:00 https://parallella.org/forums/viewtopic.php?t=4157&p=19510#p19510 <![CDATA[Pixel math-function graph using headless and framebuffer]]> parallella.png

Hi all!

just a first test, as from attached image, I've generated a 1024x768 pixels as a graph of

y=w*sin(x), w=1/16, 2/16, 3/16,... 16/16

where every single y pixel position as per function y(x) where [x=0...1024] is individually calculated by each of the 16 cores of the Epiphany device in parallel.

As well as I'm using a headless Parallella configuration connected via ssh, I'm showing on my MacBook Pro monitor the image just using VNC Viewer and running on the Parallella Host side the framebuffer-vncserver, witn geometry of 1024x768 pixels.

The program is mapping pixels from graphs directly into the /dev/framebuffer of the Parallella, so the framebuffer-vncserver is showing the output.

I've been able to show some slow animations, too, using this approach.

The Epiphany is really fast, even if the display is very low and anyway this "model" could well work without a monitor and keyboard, headless mode, as per static pixel based graphic representations.

if anybody interested, let me know.

Ciao

Statistics: Posted by claudio4parallella — Tue Aug 29, 2017 8:50 pm


]]>