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How to get SLI working in GLUT app?

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Hello, I have an SLI system with two GeForce 8800GTS cards and when running games or the NVIDIA demos I can see that green bar telling me I'm getting this or that much scaling. However, when running nVidia SDK samples or my own GLUT programs I get no SLI speedup at all (as a matter of fact, using AFR sometimes makes things a whole lot worse). I have set "force AFR/SFR" in the Control Panel, I have no glfinish or glflush commands, and I don't flush the pipeline anywhere in my display() function. What do I need to do to get SLI working in a GLUT app? Thanks for any reply, Erik

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