after searchign the forums i need to ask this:
im using ae cs4 with multicore enabled on a win 7 64bit, i7 920 (quad core + HT), 6gig ram
szene with mov footage and a few filters (also one 3rd party filter i think) no audio
at the beginning of the rendering ae is only using 1 instance of all 5 (shown in the task manager) 30% overall cpu usage
and later (sometimes it seems) he using all of them simultaniously which gives me about 90% overall cpu usage
and i see it on the render that hes outputting 4 frames at the (same) time <- THATS ACUTALLY WHAT I WANT!
after 1 or 2 hours of rendering hes stopping that again at switches to single cpu rendering...
i really dont understand why hes doing that.
its not that i stop a filter or change anything in the comp. its for all frames the same settings...
i really hope u guys can help me because it would just quarter my rendertimes!
You do not have enough RAM! Plain and simple. 6GB is by no means sufficient to feed 4 cores on a core7i. After a while, your background processes simply conk out and are not revived. Additionally, since you render to QT files, your user temp directory may clog up with temporary frames that cause a similar behavior once the directory is full. So do the only sensible thing: reduce the number of cores to use or turn off MP entirely until you have more RAM in your machine.
thats what ive done few hours ago, i reduced the cores to 2. but still, the whole ram is fully used.
but its running! and still fasten as with just one core.
thank you. perfect answer!