[VIM4] profile_info.txt not generated while .bin files are ok

General Discussion
1

Hi, I’m using Khadas VIM4 with the ADLA NPU accelerator. I’m trying to obtain the execution time for each operation, but I’m facing an issue where the profile_info.txt file is not being created.

1. Environment Variables Set: I have exported the following variables as per the documentation:

export ADLA_ENABLE_DEBUG_AND_PROFILING=1 
export ADLA_INVOKE_PER_LAYER=1 
export ADLA_DEBUG_OUTPUT_PATH=/data/test

2. Current Situation:

  • Inference Model : yolov8 (n, s, m) individually

  • When I run the inference, the .bin output files (e.g., node_554_output_...bin) are successfully generated in the /data/test path. This confirms that the NPU is correctly dumping the intermediate layer results.

  • However, profile_info.txt is missing from both the specified output path and the execution directory.

  • I have already tried ensuring a clean exit using sys.exit(0) in my Python code, but the result remains the same.

  • If I set ADLA_INVOKE_PER_LAYER=0, no files (including the txt) are generated at all.

3. Questions:

  • Why is profile_info.txt not being generated even though the .bin files are created? Is it possible that the profiling logic is skipped even if the dumping logic is active?

  • What should I do to force the creation of this file? Is this a limitation of a specific version of the libnn_yolov8s.so library or the ADLA driver?