AI Engine Graph View - 2024.2 English - XD100

Vitis Tutorials: AI Engine Development (XD100)

Document ID
XD100
Release Date
2024-12-06
Version
2024.2 English

The diagram below shows the graph view of the AI Engine array for this design. As noted above, the design contains 32 instances of 1024-pt “row” FFTs in the front-end and 32 instances of 1024-pt “column” FFTs in the back-end. Each 1024-pt transform is implemented using 5 tiles in each case. An extra tile implements “twiddle rotation” for each FFT instance in the front-end. Consequently, we can see in the diagram below there are 32 instances of a “6-tile subgraph” that implement the front-end transforms and twiddle rotations, along with 32 instances of a “5-tile subgraph” for the back-end compute processing.

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