Latest post Sun, Jan 20 2019 11:14 PM by jef. 10 replies.
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  • Fri, Dec 21 2018 2:07 AM

    • Adrian Redmond
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    CPU cores limits for MC

    I seem to remember that when I spec'ed my then new Avid system in 2014, we were told that the HP Z820 workstation should have dual 6 core HT CPUs, because MC (at that time v.7.0.4) could not handle more CPU cores - or at least could not benefit from more. Today we're running v.8.5.3 on the same platform. I can see that the settings (max threads) is set to 12 which would seem to agree with the original spec.

    But my question is now, could newer CPU's with a greater number of cores be of any benefit - and MC utilize them, and are the gains worth it?

    FYI we are currently fitted with 32GB RAM

    Any real world experience on this question out there?

    Avid Media Composer v. 8.5.3. with Symphony Option on HP Z820 Dual Intel E5-2640 6-core HT 2.5GHz CPU 32GB RAM NVidia Quadro K4000 Graphics on Win7x64... [view my complete system specs]

    Adrian Redmond
    Owner / Producer / Editor
    Channel 6 Television Denmark

  • Fri, Dec 21 2018 9:04 AM In reply to

    Re: CPU cores limits for MC

    Don't forget that background services in MC is seperate to the main MC app so additional cores can be used there. Plus you need some available for the OS etc. 24 cores is not a bad number but even today I will push for greater CPU speed over raw core count. It still seems to make the difference.

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  • Fri, Dec 21 2018 7:13 PM In reply to

    • aVienna
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    Re: CPU cores limits for MC

    The System recommendations for Feature Performance (April 24, 2018 ) has

    AVC Long-G media .... 3-6 streams, simple PIP: Dual core 6 to 14 core Xeon in Z840 (24 to 64 virtual cores with Hyperthreading)

    Apparently 64 cores are supported.

    I did not see in the current Compatibility Matrix (November 22, 2018) that Windows 10 Pro for Workstations is supported. This advanced OS supports 4 CPUs, has the new ReFS files system and the workstations can have 6 TB memory. Would be nice to hear if Avid supported these high end workstations. I guess they are not tested and therefore not qualified systems - yet.

    1) MC Symphony 2018.11, HP Z420: Intel Xeon E5-1650 v2, 6 cores @3.50GHz, 40GB RAM, Windows 10 Pro, Z TurboDrive 256GB as system disc, Thunderbolt 2 PCIe... [view my complete system specs]
  • Sat, Dec 22 2018 2:33 PM In reply to

    • DStone
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    Re: CPU cores limits for MC

    aVienna:
    I did not see in the current Compatibility Matrix (November 22, 2018) that Windows 10 Pro for Workstations is supported.

    A 4 CPU system is going to set you back between $12,000 and $40,000, depending on exactly what you choose. Unless you're NHk or Fermilabs, this is really overkill for most shops. If Avid does decide to qualify a system, it'll probably be something in the $12K to $15K range.

    ReFS looks really good on paper, but it's more for critical business applications. How well it works for video is something we'll find out when someone gets it.

    DIY quad core I7-4790K, 32Gb, NVidia GTX 970 4GB, Win 10 Pro, MC(generally the latest or the one just before), MC 7.x [view my complete system specs]

    Dave S.

  • Mon, Jan 7 2019 9:46 PM In reply to

    • dreid
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    Re: CPU cores limits for MC

    Not sure if this helps or not, but here is my .02c. I have dual 10 core Zeons (40 total hyperthreaded cores) and 128 GB RAM. I cut only 4K video, online quality (i.e. DNxHR HQX) I need all the power I can get. I do not think that Avid uses all of the power it has available to it ... but Avid is not the only toy in my toolbox. Adobe suite of apps (After Effects, Photshop, etc.) seem to be better at utilizing what is available, and so my system, if used only for Avid, is a little overkill, but when used for After Effects, is just adequate. So, the question is: are you using your computer ONLY for Avid ... or are you doing more with it? If doing MORE, then you have to pony up and get the highest end system that you can afford, because Adobe apps are power hungry.

    BTW, with all that power under then hood, I still only get 1-2 streams of realtime 4K, though I suspect the bottleneck is my HDD array. I am running Thunderbolt 2 (Areca drives) and I get over 1000 mb/sec read/write, but apparantly this is only enough for just the few real time streams. I need to upgrade to TB3 ... but to do that I need to find a proper TB3 card that will fit in my Dell Precision 7910. As an aside, if anyone out there reading this has any experience with upgrading TB2 to TB3 in a Dell workstation, please inform!!!

    MC 8.5.3, DNxIO w/ 10.5.4, Win 7 Pro 64 bit SP1, Dell 7910, Dual 10 core Xeon 3.10, 128 GB DDR4 RAM, Quadro K5200, 1 TB SSD system drive, 1 TB SSD cache... [view my complete system specs]

    And back to a windowless room full of Avids he goes.

  • Tue, Jan 8 2019 7:02 PM In reply to

    • Adrian Redmond
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    Re: CPU cores limits for MC

    Thanks to all for their replies - so additonal CPU cores might help - and may certainly speed up other applications thta can use the extra core capacity - but can I be sure that additional cores, even if not supported by MC (8.5.3) will not interfere or degrade MC performance in a any way?

     

     

    Avid Media Composer v. 8.5.3. with Symphony Option on HP Z820 Dual Intel E5-2640 6-core HT 2.5GHz CPU 32GB RAM NVidia Quadro K4000 Graphics on Win7x64... [view my complete system specs]

    Adrian Redmond
    Owner / Producer / Editor
    Channel 6 Television Denmark

  • Wed, Jan 9 2019 1:12 AM In reply to

    • BarkinMadd
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    Re: CPU cores limits for MC

    As stated, more cores but at the expense of a slower CPU clock speed will likely degrade the performance of MC.

    Camera(s) PXW-X70, HDR-FX1, Hero 6 Black | MC 18.12.1 | QT 7.7.9 | Continuum 2019 | Sapphire 2019 | Mocha Pro 2019 | Titler Pro 6 | Windows 10 Pro x64... [view my complete system specs]

    Steve

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  • Mon, Jan 14 2019 6:33 PM In reply to

    • cls105
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    Re: CPU cores limits for MC

    I would say to build a x299 machine if there are not any qualified x299 workstations.

    They are the best cobination of cores and clock speed.

    I could probably get a 4.4-4.5ghz overclock on 14 cores if I upgraded my cooling to ekwb.


    MC 2018.12.1, diy x299 7940x 4.5ghz OC, 1080ti, 128gb ram, w10 pro (1803) DM me on instagram for tech Q's: dvhaime [view my complete system specs]
  • Tue, Jan 15 2019 8:04 AM In reply to

    • Julian
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    Re: CPU cores limits for MC

    Any modern system will be at least 2x faster and more responsive than your current HP Z820.

    Beginning of last year I upgraded from an IBM x Series with 2 x Xeon X5675’s to the Threadripper 1950x and am really happy with the 2.5 x performance and responsiveness gain.  I would have preferred a Skylake X system but it was not available in my country at the time of the upgrade.

    Also, I have 32gig of ram and it is far too little for my, mostly, HD workflow.  When was still on MC 8.4 32gig was fine, now with the introduction of “Playback Video Frame Cache” I feel I constantly run out of ram when background rendering. 

    Avid does not suffer the same limitations as premier when it comes to using more cores effectively for most tasks.  Two CPU’s has a very high latency between chips so a Single Skylake x will mostly be faster than Duel Xeon of the same system core count, stability and QOS aside. 

    Avid MC 2018; AMD Treadripper 1950x; Asus Zenith Extreem; msi gtx970; 32gig Gskill trident 3200mhz; EVO 960 250 sys drive; ibm 5014 raid0 with 3x3tb WD... [view my complete system specs]
  • Fri, Jan 18 2019 1:04 PM In reply to

    • Dave
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    Re: CPU cores limits for MC

    Hi dreid, 

    If it helps I have a Dell T7910 and switched out the T2 card for an ASRock Thunderbolt 3 AIC. It isn't officially supported but is working well albeit with some quirks.  If you want any more specific info pm me and I'll try and answer any queries.   

    Media Composer 2018.12, Windows 10 Pro, Dell T7910, Intel Xeon E5-2687W v4 @3.00GHz 12-Core, 96GB RAM, EVGA Nvidia GTX 1080 ti SC2, Dell P2415Q, Akitio... [view my complete system specs]
  • Sun, Jan 20 2019 11:14 PM In reply to

    • jef
    • Top 50 Contributor
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    Re: CPU cores limits for MC

    Here is some anecdotal info as it comes to core count and CPU speed.

    I have been working mainly on a Mac Pro 5,1 2 x 33Ghz 12 total core.  I am currently experimenting with an iMac i7 4.2Ghz 4 core system.

    While the iMac has proven to be quicker in some situations, what I am noticing is how it is limiting my total workflow. Specifically I often do several things at once.  Like process material in Adobe Media Encoder while I am cutting or doing backround Transcodes or Consolidates.  This has suffered greatly with the 4 core iMac.  If I have a compression going in AME I basically can not edit in Avid.  I am assuming it is this greatly reduced number of cores that is the culprit.

    So I guess one thing that should be added to your considerations is how do you work?  What do you need the SYSTEM to do for you the majority of the time.

    Jef

    Avid DS 11.0.2 R.I.P | MC "Well, it depends ..." mostly 8.10.0 but playing w 2018.11| OS 10.11.x - various MacPro Towers - home system MacPro... [view my complete system specs]

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    Senior Editor

    Old Stuff  http://vimeo.com/album/3037796

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