IPP library optimization based on CPU type

Hello,

I saw the ippGetCpuFeatures()  regarding IPP library as below but I'm wondering about IPP optimization.

ippGetCpuFeatures() (*) that can be used to detect your processor features. It is declared in ippcore.h…..

The Intel(R)  IPP library contains a collection of functionally identical processor-specific optimized libraries that are “dispatched” at run-time. The “dispatcher” chooses which of these processor-specific optimized libraries to use when your application makes a call into the IPP library. This is done to maximize each function’s use of the underlying SIMD instructions and other architecture-specific features….

Question:

1. IPP library fetches and runs optimized set at runtime the processing after detecting CPU feature(CPU/APU)  automatically? Especailly APU..

2. There are some ways to optimize for maximizing the capability of IPP libraries?