[Radiance-general] rpict/rpiece and multiple processors

[Lars O. Grobe]

Hi Glen!
>
> I am rendering a number of images on a machine with multiple processors.
>
> (...)
>
> Does anyone know where I’m going wrong, or even if it’s possible to
> use multiple cpus in the same machine at once?
>
It is possible, and asked here from time to time. The trick is to start
one with all the command line arguments and the others without, so that
they will take over from the parent process. BUT: If you have several
frames to render, I would not care. It is much easier to render the
frames in parallel then slicing the single images. And to render all the
views at one (if you have enough processors) you just call rad -N 8 (for
eight CPUs), and it will start eight images at once for you. Much
easier, same effect.

Besides that, if you have really lots of frames, I have an old
documentation on how to use ranimate for similar stuff:

http://www.larsgrobe.de/projects/radiance/ranimate_openmosix/

CU Lars.