Often we have to restart the cinema 4d

[sitnisati]

Me too. very often when I have to delete old simulating data and re-simulate.

You can adjust stop/continue data to be saved every 20 frames or so. When simulation crashes or you have to restart c4D, you can always continue simulation from some of the saved frames saving lots of time. You can adjust that under the FumeFX preferences -> Snapshot options.

http://docs.afterworks.com/FumeFX5C4D/Menu.htm