I don't get what "calculate all frames result" is about. Too much vague for me. 

Anyways, there's an example I've helped make that has a Queue for PImages.
And there are also 2 Threads. 1 is responsible to store capture PImages into the Queue.
The other to save those enqueued PImages to disk at its own speed.

Perhaps it's a similar concept for what you intend to do?
http://forum.processing.org/topic/save-frames-per-second

Processing in general isn't "batch-friendly"...
But from what you describe, I think you have to look into PGraphics: it is a way to draw graphics (like done in the sketch) on an off-line buffer, ie. not displayed on the sketch (unless using image() with the PGraphics).

thanks a lot for your answers.