[Cin] Rendering multi-threads

Phyllis Smith phylsmith2017 at gmail.com
Fri Jun 26 20:23:19 CEST 2020

OK, I am WRONG -- *rendering is multi-threaded for h264* and many others so
something else is wrong.  I will have gg analyze what the problem could be.
Sorry for being wrong.

On Fri, Jun 26, 2020 at 9:27 AM Andrea paz <gamberucci.andrea at gmail.com>

> I have a CPU 8 cores / 16 threads, but the final rendering uses only
> one core. I tried with mp4/h264-5; webm/VP9; mkv/h264-5 e Prores. A 45
> min video takes 3h 30m.
> I tried adding the parameters "threads=15", "wpp" which should be
> active by default and "frame-threads=3"; but the result is the same.
> On average I do 15 fps.
> Using h264-5 with nvenc takes 1h20m; but the CPU still uses only one
> core. On average I make 115 fps.
> Using an external engine (handbrake, which uses ffmpeg) you can use
> both the Cpu and the GPU; the rendering will take 10m! (but with lower
> quality).
> Since I'm compiling CinGG (note: all threads are used for compiling),
> maybe I need to enable some flags or something like that? Are there
> any customizations to do? Or should I set something in the operating
> system?
> Another question: How do you configure the render farm to use only the
> local CPU cores?
> --
> Cin mailing list
> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
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