4 Replies Latest reply on Mar 12, 2008 2:55 AM by Jonas Hummelstrand

    AE CS3 hanging during rendering?!

      When rendering(sometimes?!)it hangs. Looking at the processes though they're still ticking over.
      I have a Quad Extreme Xeon and discovered when it is rendering there are 4 processes rendering, if I kill one (when it hangs) the rendering usually kicks into life again?? Though when you render next time your a processor down and if you try it a second time it hangs completely :(

      Any ideas whats happening and how to fix it?

      Please help as this is really frustrating!

        • 1. Re: AE CS3 hanging during rendering?!
          Mylenium Most Valuable Participant
          How much RAM do you have? What format do you render to? What CoDecs do the sources use (if any)? Multiprocessing crashes/ hangs either occur due to insufficient RAM or the CoDecs conking out. Especially the latter is a rather regular occurence, as most CoDecs are not fully multithreaded/ parallelized. also make sure your disks are fast enough. One instance having to wait for another to finish writing frames can also make it go too sleep (if it thinks it takes too long) and then they mutually lock each other....

          • 2. Re: AE CS3 hanging during rendering?!
            Level 1
            My system spec is:-
            RAM: 3324MB
            CPU: Intel Xeon X5355 @ 2.66Ghz (4 cpus)
            Graphics: Nvidia Quadro FX 4600 (2Gb), DirectX 10
            OS: Vista Ultimate
            Drive speed: SAS 10000rpm
            gigs of space on Hdd.

            Codec is default "best" codec at full Pal(25fps),720x576, (progressive).

            • 3. Re: AE CS3 hanging during rendering?!
              Mylenium Most Valuable Participant
              Well, clearly you are very short on RAM due to being tied to an 32bit OS. You should turn off multiprocessing alltogether. Keep in mind: Even if you lower RAM usage in AE's prefs to 10%, AE will assign at least 200 MB to each background instance, which sums up to at least 800 MB of RAM. With Vista itself, AE open and potentially other processes running, you already have spent about 2 GB without actually rendering anything...

              • 4. Re: AE CS3 hanging during rendering?!
                Jonas Hummelstrand Level 2
                You need to give each background process at least 2 GB to work efficiently. With a 4 core machine, you would need at least 8 GB of RAM (plus 2 GB for Vista) and you can only get more than 4 GB in total with either Vista64, XPx64 or OS X.

                In your case, that means you should start by turning of "Render Multiple Frames Simultaneously" since you don't have enough RAM.

                - Jonas Hummelstrand