for loop parallelism

[jyang72211]

What does it mean by recognized reduction?

If there is a shift register on the For Loop, the value must be an array where the iterations access different elements, or the value must used in a recognized reduction.

http://www.ni.com/white-paper/9393/en 

[CMal]

A recognized reduction is sequential code that LabVIEW is capable of parallelizing.  This includes simple math and logic functions.  This is discussed in the Iteration Dependence Analysis section of the document you linked.  The Parallel For Loop Reduction.vi shipping example also explains more about this.

Chris M