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README.md
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- Precision: w8a8 (8-bit weights, 8-bit activations)
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| Device | Chipset | Target Runtime | Inference Time (ms) | Peak Memory Range (MB) | Precision | Primary Compute Unit | Target Model
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| Samsung Galaxy S23 Ultra (Android 13) | Snapdragon® 8 Gen 2 |
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## Installation
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Profile Job summary of ConvNext-Tiny-w8a8-Quantized
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Device: Snapdragon X Elite CRD (11)
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Estimated Inference Time: 1.
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Estimated Peak Memory Range: 0.48-0.48 MB
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Compute Units: NPU (215) | Total (215)
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```
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## How does this work?
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This [export script](https://github.com/quic/ai-hub-models/blob/main/qai_hub_models/models/ConvNext-Tiny-w8a8-Quantized/export.py)
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leverages [Qualcomm® AI Hub](https://aihub.qualcomm.com/) to optimize, validate, and deploy this model
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on-device. Lets go through each step below in detail:
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Step 1: **Compile model for on-device deployment**
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To compile a PyTorch model for on-device deployment, we first trace the model
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in memory using the `jit.trace` and then call the `submit_compile_job` API.
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```python
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import torch
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import qai_hub as hub
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from qai_hub_models.models.convnext_tiny_w8a8_quantized import Model
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# Load the model
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torch_model = Model.from_pretrained()
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torch_model.eval()
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# Device
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device = hub.Device("Samsung Galaxy S23")
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# Trace model
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input_shape = torch_model.get_input_spec()
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sample_inputs = torch_model.sample_inputs()
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pt_model = torch.jit.trace(torch_model, [torch.tensor(data[0]) for _, data in sample_inputs.items()])
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# Compile model on a specific device
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compile_job = hub.submit_compile_job(
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model=pt_model,
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device=device,
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input_specs=torch_model.get_input_spec(),
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)
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# Get target model to run on-device
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target_model = compile_job.get_target_model()
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```
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Step 2: **Performance profiling on cloud-hosted device**
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After compiling models from step 1. Models can be profiled model on-device using the
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`target_model`. Note that this scripts runs the model on a device automatically
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provisioned in the cloud. Once the job is submitted, you can navigate to a
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provided job URL to view a variety of on-device performance metrics.
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```python
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profile_job = hub.submit_profile_job(
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model=target_model,
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device=device,
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)
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```
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Step 3: **Verify on-device accuracy**
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To verify the accuracy of the model on-device, you can run on-device inference
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on sample input data on the same cloud hosted device.
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```python
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input_data = torch_model.sample_inputs()
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inference_job = hub.submit_inference_job(
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model=target_model,
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device=device,
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inputs=input_data,
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)
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on_device_output = inference_job.download_output_data()
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```
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With the output of the model, you can compute like PSNR, relative errors or
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spot check the output with expected output.
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**Note**: This on-device profiling and inference requires access to Qualcomm®
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AI Hub. [Sign up for access](https://myaccount.qualcomm.com/signup).
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## Run demo on a cloud-hosted device
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## License
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- The license for the original implementation of ConvNext-Tiny-w8a8-Quantized can be found
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[here](https://github.com/pytorch/vision/blob/main/LICENSE).
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- The license for the compiled assets for on-device deployment can be found [here](
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## References
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* [A ConvNet for the 2020s](https://arxiv.org/abs/2201.03545)
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- Precision: w8a8 (8-bit weights, 8-bit activations)
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| Device | Chipset | Target Runtime | Inference Time (ms) | Peak Memory Range (MB) | Precision | Primary Compute Unit | Target Model
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| Samsung Galaxy S23 Ultra (Android 13) | Snapdragon® 8 Gen 2 | QNN Model Library | 1.723 ms | 0 - 121 MB | INT8 | NPU | [ConvNext-Tiny-w8a8-Quantized.so](https://huggingface.co/qualcomm/ConvNext-Tiny-w8a8-Quantized/blob/main/ConvNext-Tiny-w8a8-Quantized.so)
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## Installation
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Profile Job summary of ConvNext-Tiny-w8a8-Quantized
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--------------------------------------------------
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Device: Snapdragon X Elite CRD (11)
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Estimated Inference Time: 1.92 ms
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Estimated Peak Memory Range: 0.48-0.48 MB
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Compute Units: NPU (215) | Total (215)
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```
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## Run demo on a cloud-hosted device
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## License
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- The license for the original implementation of ConvNext-Tiny-w8a8-Quantized can be found
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[here](https://github.com/pytorch/vision/blob/main/LICENSE).
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- The license for the compiled assets for on-device deployment can be found [here](https://qaihub-public-assets.s3.us-west-2.amazonaws.com/qai-hub-models/Qualcomm+AI+Hub+Proprietary+License.pdf)
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## References
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* [A ConvNet for the 2020s](https://arxiv.org/abs/2201.03545)
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