Latest post Fri, May 23 2014 5:14 PM by zendown. 19 replies.
Page 2 of 2 (20 items) < Previous 1 2
Sort Posts: Previous Next
  • Fri, May 23 2014 1:21 AM In reply to

    Re: Avid and new MacPro

    Just got a new 12-Core Mac Pro in my office.  Testing an export of a 45-minute timeline that took a 1hr15m on the previous 12-core Mac Pro.  Don't yet know the results. 

    However, what I find interesting, is when you look at the activity monitor, the CPU usage hovers around only 30%.  I've read that Media Composer 7 is multi-threated, so why doesn't it max out the CPU usage?  

    I've found the same thing for transcodes in MC 7.  Anyone have an answer for this?

    Lenovo P710 Windows 10 Pro Dual Xeon E5-2643 v4 3.4GHz (6-core) 64 GB RAM NVIDIA M4000 [view my complete system specs]
  • Fri, May 23 2014 4:32 AM In reply to

    • ericswanson
    • Not Ranked
    • Joined on Thu, Oct 13 2005
    • Texas
    • Posts 61
    • Points 805

    Re: Avid and new MacPro

    Uli Kunkel:

    Just got a new 12-Core Mac Pro in my office.  Testing an export of a 45-minute timeline that took a 1hr15m on the previous 12-core Mac Pro.  Don't yet know the results. 

    However, what I find interesting, is when you look at the activity monitor, the CPU usage hovers around only 30%.  I've read that Media Composer 7 is multi-threated, so why doesn't it max out the CPU usage?  

    I've found the same thing for transcodes in MC 7.  Anyone have an answer for this?

     

    That is very interesting. I wonder how the CPU usage showed on your old Mac Pro, was it at 100% (or would it be 1200% for all 12 cores running at 100%)? Or was it running low like the 30% for the new Mac Pro?

    The 30% figure might indicate slow media access relative to the speed of the new 12-core?

     

    Editing on an iMac Pro [view my complete system specs]
  • Fri, May 23 2014 4:50 PM In reply to

    • teltrab42
    • Not Ranked
    • Joined on Mon, Aug 31 2009
    • Posts 48
    • Points 665

    Re: Avid and new MacPro

    I am just about to purchase a new round Mac Pro. Wondering if I should spend the extra and get a six or eight Core machine. Does Avid make use of these cores to speed up Transcoding or rendering or what?

     

    Thanks

    db

    MediaComposer 2023.3.0 OS,13.4. Quicktime v10.0, MacPro,SIX-CORE 3.5GHz, Memory 16GB., . .External ThunderBolt and Firewire drives [view my complete system specs]
  • Fri, May 23 2014 4:57 PM In reply to

    Re: Avid and new MacPro

    Transcoding isn't all about raw processing. You have to access the source file, and store the output file. So there is a data movement overhead.

    Also multithreading presents some other challenges. If you break a task like transcoding into chunks to be passed to the various cores you may have to wait on one core to complete before you can re-assemble and move on to the next batch.

    Writing code to take advantage of multi cores/ threads is a complex business.

    HP Z840 3.1GHZ 20cores 128GB RAM M4000 GPU 1TB NVMe drive HP Z book 17 G2 2.7GHZ Quad core 32GB RAM Nvidia K3100M 1TB SSD drive ACI Moderator. I'm... [view my complete system specs]

     

    Broadcast & Post Production Consultant / Trainer  Avid Certified Instructor VET (Retired Early 2022)

     

    Still offering training and support for: QC/QAR Training - Understanding Digital Media - Advanced Files * Compression - Avid Ingest - PSE fixing courses and more.

    Mainly delivered remotely via zoom but onsite possible.

     

    T 07581 201248 | E [email protected]

     

    Filed under:
  • Fri, May 23 2014 5:14 PM In reply to

    • zendown
    • Not Ranked
    • Joined on Wed, Jun 10 2009
    • Posts 40
    • Points 485

    Re: Avid and new MacPro

    The question remains...

Page 2 of 2 (20 items) < Previous 1 2

© Copyright 2011 Avid Technology, Inc.  Terms of Use |  Privacy Policy |  Site Map |  Find a Reseller