As described in AI Engine Kernel and Graph Programming Guide (UG1079), an AI Engine kernel is a C/C++ program that is written using the AI Engine API and specialized intrinsic functions that target the VLIW scalar and vector processors of Versal® AI Core devices.
The AI Engine kernel code is compiled
using the AI Engine compiler (
aiecompiler) which is included in the Vitis core development kit. The AI Engine compiler produces ELF files that are run on
the AI Engine processors. Multiple AI Engine kernels are combined in an adaptive data flow
(ADF) graph that consists of nodes and edges where nodes represent compute kernel
functions, and edges represent data connections. The ADF graph is a static flow dataflow
graph with kernels operating in parallel on data streams. The ADF graph interacts with
the PL kernels of the Vitis flow, global memory,
and the host application described here.