Description
This message is displayed when the tool execution is using the GPU connected to your display. This happens when there is only one GPU present on your computer.
Solution
This warning message does not affect the execution of the tool. However, the display performance is affected by the tool execution. You may optionally install another GPU if you don't want the display performance to be affected.
For more details on technical aspects of using GPUs with this tool, see GPU processing with Spatial Analyst.