Return-Path: Received: from s427.sureserver.com ([64.14.74.47] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 4704570 for AE-List@media-motion.tv; Thu, 03 May 2012 19:51:21 +0200 Received: (qmail 27069 invoked by uid 504); 3 May 2012 17:52:44 -0000 Received: from static-151-196-57-185.balt.east.verizon.net (HELO ?192.168.1.45?) (151.196.57.185) by s427.sureserver.com with SMTP; 3 May 2012 17:52:44 -0000 From: Dave Bittner Mime-Version: 1.0 (Apple Message framework v1257) Content-Type: multipart/alternative; boundary="Apple-Mail=_8488584E-118D-4792-9AF1-E6CB6C73BEA4" Subject: Re: [AE] Thunderbolt and Mac Pro slot speeds Date: Thu, 3 May 2012 13:52:44 -0400 In-Reply-To: To: "After Effects Mail List" References: Message-Id: X-Mailer: Apple Mail (2.1257) --Apple-Mail=_8488584E-118D-4792-9AF1-E6CB6C73BEA4 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii This thread has some good info on the GTX series OpenGL limitations -=20 = http://www.opengl.org/discussion_boards/showthread.php/171394-slow-transfe= r-speed-on-fermi-cards On May 3, 2012, at 1:11PM, Dave Bittner wrote: > On May 3, 2012, at 12:21PM, Karl Newman wrote: >=20 >> I wonder if it is possible to run both the AMD card and the GTX 470 = at the same time using the AMD for screen draws and Open GL and keeping = the NVidia for the CUDA cores acceleration of Premier Pro and others? = Could the power supply of the MacPro 3.1 handle the load or would it = need an external power supply for one of the GPUs? >=20 > That's exactly what I did when I put the machine back together. The = older ATI card is driving the display, the NVidia is dead-headed in = there for CUDA support. I put the ATI in one of the four-lane slots, and = fed it power from the spare CD-ROM bay. Theres an AJA Kona LHe in there, = too, and a eSATA card. So the machine is officially maxed out, = slot-wise. >=20 > So far, so good, although honestly I really haven't done anything to = push it, yet. >=20 >=20 > Dave Bittner - Pixel Workshop Inc. > www.pixelworkshop.com > 410.381.8555 > Twitter @bittner >=20 >=20 --Apple-Mail=_8488584E-118D-4792-9AF1-E6CB6C73BEA4 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii This = thread has some good info on the GTX series OpenGL limitations = - 


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On May 3, 2012, at 1:11PM, Dave Bittner = wrote:

On May 3, = 2012, at 12:21PM, Karl Newman wrote:

I wonder if it is = possible to run both the AMD card and the GTX 470 at the same time using = the AMD for screen draws and Open GL and keeping the NVidia for the CUDA = cores acceleration of Premier Pro and others? Could the power supply of = the MacPro 3.1 handle the load or would it need an external power supply = for one of the GPUs?

That's = exactly what I did when I put the machine back together. The older ATI = card is driving the display, the NVidia is dead-headed in there for CUDA = support. I put the ATI in one of the four-lane slots, and fed it power = from the spare CD-ROM bay. Theres an AJA Kona LHe in there, too, and a = eSATA card. So the machine is officially maxed out, = slot-wise.

So far, so good, although honestly I = really haven't done anything to push it, = yet.


Dave Bittner - Pixel Workshop = Inc.
www.pixelworkshop.com
Twitter @bittner


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