Return-Path: Received: from [208.84.113.138] (HELO aurora2.hosting4less.com) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 4744979 for AE-List@media-motion.tv; Wed, 13 Jun 2012 01:42:53 +0200 Received: from anarchyjimPC (c-69-181-240-175.hsd1.ca.comcast.net [69.181.240.175]) (authenticated bits=0) by aurora2.hosting4less.com (8.13.8/8.13.1) with ESMTP id q5CNpdxB026384; Tue, 12 Jun 2012 16:51:42 -0700 From: "Jim Tierney" To: "'After Effects Mail List'" , References: In-Reply-To: Subject: RE: [AE] (OT) physical vs. virtual cores ( was.. An example of a PC version...) Date: Tue, 12 Jun 2012 16:45:23 -0700 Message-ID: <104201cd48f5$718f5a60$54ae0f20$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_1043_01CD48BA.C5308260" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Ac1I7zxRh7CdkSwYR1+4ec5Mr5LRVwABTHxA Content-Language: en-us This is a multi-part message in MIME format. ------=_NextPart_000_1043_01CD48BA.C5308260 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit In most cases, if you're assigning more than the physical number of cores you'll probably see a slight decrease in performance. I suppose it's possible that if the physical cores aren't being taxed heavily then there's some advantage to the virtual cores, but in our testing the virtual cores don't add anything. We've done a fair amount of testing in this regard. Granted, we're testing our plugins, not just AE, but I would be surprised if the results were different if it was just AE. Cheers, Jim ---------------------- Jim Tierney President Digital Anarchy http://www.digitalanarchy.com From: After Effects Mail List [mailto:AE-List@media-motion.tv] On Behalf Of Stephen van Vuuren Sent: Tuesday, June 12, 2012 3:54 PM To: After Effects Mail List Subject: Re: [AE] (OT) An example of a PC version of a Mac Pro with today's tech for AE > If you are assigning more cores to AE that are physically on your CPU, you're not getting anything additional out of multiproc rendering compared to stopping at the number of physical cores. Are you sure about this? My DCP renders (rendering JPG2K with XYZ color transform) on a 4 physical cores is much slower than rendering on 7 (or even 8 if the machine is otherwise unused) cores. For that type of renders, HTT imposes only a mild penalty. >If you are also buying RAM to support those virtual cores, you're potentially wasting money. This relates to the above point - for renders that do well with HTT, they need RAM. And have plenty of background RAM available, I've yet to run into a scenario where I feel like I have "too much RAM". Plus RAM previews etc. and RAM always seems like a good buy. stephen van vuuren 336.202.4777 http://www.sv2dcp.com/ http://www.sv2studios.com/ http://www.outsideinthemovie.com/ A film is - or should be - more like music than like fiction. It should be a progression of moods and feelings. The theme, what's behind the emotion, the meaning, all that comes later. -Stanley Kubrick ------=_NextPart_000_1043_01CD48BA.C5308260 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

In most cases, if you're assigning more than the physical number of = cores you'll probably see a slight decrease in performance. I suppose = it's possible that if the physical cores aren't being taxed heavily then = there's some advantage to the virtual cores, but in our testing the = virtual cores don't add anything. We've done a fair amount of testing in = this regard. Granted, we're testing our plugins, not just AE, but I = would be surprised if the results were different if it was just AE. =

Cheers,

Jim

----------------------

Jim Tierney

President

Digital Anarchy

http://www.digitalanarchy.com

From:= = After Effects Mail List [mailto:AE-List@media-motion.tv] On Behalf Of = Stephen van Vuuren
Sent: Tuesday, June 12, 2012 3:54 = PM
To: After Effects Mail List
Subject: Re: [AE] = (OT) An example of a PC version of a Mac Pro with today's tech for = AE

> If you are assigning more cores to AE that are physically = on your CPU, you're not getting anything additional out of multiproc = rendering compared to stopping at the number of physical = cores.

Are you sure about this? My DCP renders (rendering = JPG2K with XYZ color transform) on a 4 physical cores is much slower = than rendering on 7 (or even 8 if the machine is otherwise unused) = cores. For that type of renders, HTT imposes only a mild = penalty.

>If you are also buying RAM to support those = virtual cores, you're potentially wasting money.

This relates to the above point – for renders that do well with = HTT, they need RAM. And have plenty of background RAM available, = I’ve yet to run into a scenario where I feel like I have = “too much RAM”. Plus RAM previews etc. and RAM always seems = like a good buy.

stephen van vuuren

336.202.4777

http://www.sv2dcp.com/

http://www.sv2studios.com/<= /span>

http://www.outsideinthemovie.com/=

A film is – or should be – more like music than like = fiction. It should be a progression of moods and feelings. The theme, = what’s behind the emotion, the meaning, all that comes = later.

–Stanley Kubrick

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