In this document, we will introduce how to convert the ONNX model into a model that can be used on the VIP9000 C3V NPU. The first part introduces the working environment needed for model conversion. The second part introduces the steps of conversion.
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1. Environment
Vivante Acuity NN toolkit installation completed
Vivante_NN IDE installation completed
Download acuity_examples_c901149.tgz for model conversation
The VIP9000 NPU kernel driver Acuity , NN Toolkit, and ViviantelIDE NN IDE need to match the version:
VIP9000 NPU Kernel Driver | Acuity NN Toolkit | ViviantelIDENN IDE |
v6.4.13.8 | 6.18.1 | 5.7.2 |
v6.4.15.9 | 6.21.1 | 5.8.2 |
1.1. Prepare
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NN Toolkit Environment
Please refer to this document: Acuity toolkit environmentToolkit Environment
Export environment variable.
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export ACUITY_PATH=/home/users/data/share/c3v/acuity-toolkit-whl-6.18.1/bin |
1.2. Install the IDE
Please refer to this document: VivanteIDE Install
1.3. Uncompress
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Examples
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tar xvf acuity_examples_c901149.tgz |
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cd Model source env.sh |
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2. Transfer
2.1. Preparing
Create Model folder
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mkdir yolov8s cd yolov8s |
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cp ../yolov8s.onnx . cp ../input.jpg . |
Create a dataset.txt file, the content of dataset.txt is the input.jpg file name.
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After completing the above steps, there will be the following files under yolov8s：
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2.2. Implementing
Import
This command will import and translate an NN model to ACUITY formats. Execute the command in the console or terminal, and wait for it to complete.
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After the command execution is completed, you will see the following four files added under the folder.
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Quantize
Please modify the scale value(1/255) of yolov8s_inputmeta.yml.
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After the command execution is completed, you will see the following two files added under the folder.
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Inference
Inference the ACUITY NN model with the quantization data type.
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./pegasus_inference.sh yolov8s uint8 |
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Export
Export the quantized application for device deployment. If you want to get the network binary, please modify the pegasus_export_ovx.sh for the nb file generating, and add both 3 lines marked in the red box.
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./pegasus_export_ovx.sh yolov8s uint8 |
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We can get the nb NB file and a c file for NN graph setup information.
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