The AI Engine Power page in the Power Design Manager (PDM) tool (download at www.xilinx.com/power) is available for the Versal AI Core series. You can use the PDM tool to conduct both an early estimation and a more detailed estimation after an AI Engine compilation is available.
Following are the recommended flows to enable accurate power
estimation:
Power Tip: When considering the Vector Load percentage, use the average loading
percentage. Although cores might be available exclusively to some kernels, do not
assume that the cores are always executing kernel instructions. You must consider
overhead from prefetch, memory accesses, NOPs, stream, and lock stalls. The
recommended range is 30% to 70%.
- Manual Entry Flow
- Use this flow to conduct an early power estimation. Enter details about the AI Engine array, such as clock frequency, number of cores, kernel type, and the percentage load for core during the operation. The supported kernel types are Int8, Int16, and Floating Point.
- Import Flow
- The AMD Vitis™ tools generate an .xpe file that can be imported to provide an accurate starting point for AI Engine power estimation. After import, the AI Engine page is filled with data from the Vitis tools AI Engine compilation results, and power can be estimated more accurately than with manual entry mode.
Note: For more information, see the
Power Design Manager User Guide (UG1556).