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Appendix A
Using NVIDIA SLI Technology
Using the Preset 3D App Profiles
The following three preset application profiles for OpenGL applications are useful in
SLI configurations:
• 3D App‐Modeling AFR
This preset is useful for modeling applications, and uses SLI AFR mode.
• 3D App‐Visual Simulation
This preset is useful for visual simulation applications, and uses SLI SFR mode.
• 3D App‐Default Global Settings
This preset uses SLI single‐GPU rendering mode, and is also useful when you
need to use non‐SLI configurations.
To enable one of these profiles, click the Global Settings tab in the Manage 3D
Settings page, then click the Global presets list arrow and click the profile you want
to use.
Viewing Load Balancing
To view the relative amount of work, or load balancing, performed by each GPU in
DirectX and OpenGL applications,
1 From the NVIDIA Control Panel Select a Task pane, click Set SLI configuration.
2 From the menu bar, click 3D Settings, then click the drop‐down menu item Show
SLI Visual Indicators.
This option enables an SLI status bar that reflects how the GPUs are working together
to render DirectX and OpenGL full‐screen applications. See Figure 1.1.
46 Quick Start Guide