Render farm is OK, now. Thanks. I did some more rendering tests: CPU 8c/16t "use HW device" --> none Container: mp4 codec: h264 Default (none or threads=0) --> 86.5 fps [note: does not vary by changing SMP (obviously); I tried SMP=4; 8 and 14 with the exact same result] threads=8 --> 64.2 fps threads=15 --> 72.8 fps (I read somewhere that ffmpeg handles up to 15 threads; I don't know if this is true) threads=16 --> 73.2 fps [Note: in all these tests, from Top you can see that the rendering starts from 1000 - 1200%, but then after about ten seconds, it goes to 400 - 600% until the end of the rendering.] Render farm OK: all the cores at 100% --> 170 fps When I compile CinGG, I use this "configure": env CUDA_PATH=/opt/cuda ./configure --without-oss --with-cuda --with-single-user --with-booby maybe I need to add/take out some flags? (e.g. --prefix=/usr)