Floating-point Pipeline - 2023.2 English

Vitis Tutorials: AI Engine (XD100)

Document ID
Release Date
2023.2 English

missing image

In this pipeline, one can see that the selection and shuffling units (PMXL, PMC) are the same as in the fixed-point unit. Unlike the fixed-point pipeline there is no lane reduction unit, so the lanes that you have at the input will also be there at the output. Another difference is that the post-accumulator is on two clock cycles. If the goal is to reuse the same accumulator over and over, only one fpmac per two clock cycles can be issued.