heterogeneous ati system

[johanatan]

Has anyone tried mixing 5XXX and 6XXX cards on the same system?  Both Linux and Windows recognize the cards just fine, but CLInfo. ati-config and other OpenCL programs (including the miners) do not.

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[1714159180]

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[Dr. Arnold]

Yep running a 6950 and a 5850 in my pc right now 

[jsidhu]

yeah, I just got it running today. 2x5970 + 1 6870 on Linux.

The 6870 will not work with ati stream sdk 2.1, you need to upgrade it to the latest AMD APP SDK2.4 .

So far i've had the best performance from 2.1.  So i'd recommend using 2.1 for everything that it works for, and use 2.4 for the newer 6X cards.

To use both 2.1/2.4 you add both paths to your LD_LIBRARY_PATH, i.e. make sure you have the path to 2.1 and 2.4 libs in there. If you do this, the miner, ex phoenix, will see this as a second platform. SO you can use 2.1 for your older 5XXX cards and 2.4 for the newer 6XXX cards. 2.1 was the fastest for me for my 5970s, so I'd recommend 2.1 for everything, and if that doesn't work, use the 2.4.

export LD_LIBRARY_PATH=/opt/ati-stream-sdk-v2.1-lnx64/lib/x86_64/:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH=/opt/AMD-APP-SDK-v2.4-lnx64/lib/x86_64/:$LD_LIBRARY_PATH

make sure u specify the PLATFORM=0 or PLATFORM=1 when accessing the different versions of the sdk.

[nster]

make sure to use the device=1 device=2 or device=0 depending on what is right for you