What is "FPGA VI"?

[Chon.Mech]

I keep reading about "FPGA VI", and I don't know what that is.  Is it a Field Programmable Gate Array Virtual Instrument?  Is it a 4th generation FPGA?

Here's and example of where I'm reading this:http://www.ni.com/white-paper/7693/en

[crossrulz]

It is simply a VI that you will compile to run on an FPGA.  For instance, on the cRIO chassis you have a LabVIEW RT computer and an FPGA backplane.  The FPGA backplane needs code to run.  So you write a VI that is setup to run on the FPGA target.