I noticed that my application, running on a 6970, has different runtimes each time I reboot my host.
First I thought I might get the numbers wrongs - but I double checked.
The difference in runtime is about +/-7 percent.
Question: Might this be because of 6970s Power Tune Technology? And can I disable this feature?
Background: It is impossible to profile & tune an application when the hardware operates (randomly?) at different speeds.
I am not aware of power tune technology.Although i suggest you to ask this question in a more relevent category.
Regarding your differnet runtimes its better to post some code or send a optimal test case to firstname.lastname@example.org