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Date: Thu, 05 Apr 2012 13:43:56 -0400
From: Richard Farina <>
Subject: Re: JtR:Multi-GPU Setups

On 04/05/12 13:29, magnum wrote:
> On 04/05/2012 07:07 PM, SAYANTAN DATTA wrote:
>> However I want to know whether I can mix GPUs from two
>> different brands and run them together for openCL GPU accelaration?  If
>> yes, then how?  In windows 7 it is possible to install drivers from both
>> vendors but I am not sure whether we can use both of them together
>> simultaneously under openCL.  Also I would like to know the possibilities
>> under linux .
> I too would appreciate any clues or hints.
> I am currently trying to put an nvidia GTX580 and a low-end AMD Cedar
> (just for testing) into one machine, running Linux. It's not working yet
> but I think I'm close. I think you need to connect the physical monitor
> to the AMD card, and just configure a dummy screen for nvidia.
The AMD card needs to be running X, but the nvidia card only needs you
to run "nvidia-smi" and it will create the /dev nodes you need to use
the card. Don't waste resources on a second X server.

> magnum

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