Warp wrote:
> Charles C <nomail@nomail> wrote:
>> Or, here's another approach:  Let all machines go at once & let SDL create "flag
>> files" and either render blank (read "easily sorted out") images or real frames
>> depending on whether a given frame number's "flag file" exists already or not.
> 
> http://en.wikipedia.org/wiki/Race_condition#Computing
> 

:-D It's a 'practical' solution to distributing frames using a simple 
SDL-only approach, not a 'theoretically ideal' solution...

Rendering 5400* frames of "Psychedelic Scrambler"  over about 23 odd 
days on a handful of processes resulted in maybe 2 or 3, mayyyybe 4 
duplicate frames rendered and no apparent file handling errors on the 
part of the NAS that contained my shared directory.  While I had systems 
restart or crash in the middle, iirc as far as I could tell the times 
didn't correspond to the same frame being rendered on multiple machines. 
OTOH, who knows.

*plus about a day's worth I accidentally deleted.

Charles

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