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Hello world

multiples GPU

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One of my friend suggested to go for a mother board which has sli x8/x8.

1)So right now im going with evga gtx 7806gb does that mean that i have to go for the same gpu if i later think to upgrade my system with my second gpu.

or go with crossfire.

2) sli goes only with nvidia card. amd goes only with crossfire... can the second gpu be from amd and the first gpu be from nvidia

3) how do we set 1gpu for graphic and 2nd gpu for compute

how do we set up this.. would be great if someone shares info.. sorry if anything i posted is silly

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To designate which card to OpenCL computing set these environmental variables:

 

HOUDINI_OCL_DEVICENUMBER 
HOUDINI_OCL_VENDOR

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