Details of the Event Trace Data - 2023.2 English

Vitis Tutorials: AI Engine (XD100)

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2023.2 English
  1. Select the Graph view to examine the design. Select p_d to identify the tile as (25,0). graph view trace

  2. Adjust the trace view to the correct size with the zoom in or zoom out icons, and move the marker to the end of peak_detect or the beginning of _main. This is considered as the beginning of an iteration. A period of lock stall indicates data is sent from the PL to AIE tile. adjusted trace view

  3. Observe the end of the peak_detect kernel corresponding to the core(25,0) and start of the core(24,0) and core(25,1). If you observe the graph view, you can notice that the kernel peak_detect sends data to both the upscale and data_shuffle kernels. The same behavior can be observed in the trace view as well.

  4. You can calculate the execution time of one iteration as follows. Place the marker at the start and end of the iteration and (1) - (2) gives 262.2 ns which is ~= 329 cycles. This matches with the Function time in the profile data from both the AI Engine simulation and hardware emulation. iteration time