On Tuesday 10 January 2006 21:05, Rony Bill wrote:

>
> The application is as follows. Taking a video clip from a camera as
> well as a VTR, 

This is the capture part and is very io intensive. This will happen on 
a standalone machine. 25 fps D1 10 bits per color. 
25*720*576*3*2=62.2MBps. Regular pci bus will choke. U require 
hardware compression on the capture card or PCIE.
And fast storage 230 GB per hr of raw video.

> processing it in the machine 

This can be distributed on the cluster and will scale linearly.

> and editing it. 

Same here. Both the above depends on what processing u are doing.
Basically each frame is divided into blocks. Figures are available on 
the net for compute cycles per block and per frame. U can distribute 
blocks or frames across the cluster. There are tradeoffs.

> After  edit, its converted to dvd for backup and broadcast. One
> second of uncompressed video is 50 MB in digital format. 

See above.

> From all this data, 
> how does one calculate the above 3 parameters.
>
> Regards,
>
> Rony.
>
>
>
>
>
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