Files
Model-Optimizer/tests/examples
jingyu-ml 26ae8da517 [2/3] Implicit Gemm NVFP4 (#1227)
### What does this PR do?

Type of change: new feature <!-- Use one of the following: Bug fix, new
feature, new example, new tests, documentation. -->

- Add Conv3D implicit GEMM kernel with BF16 WMMA tensor cores and fused
NVFP4 activation quantization for video diffusion VAE layers
- Integrate into _QuantConv3d via QuantModuleRegistry — automatically
dispatched when NVFP4 quantization is applied to nn.Conv3d
- Move kernel from `experimental/conv/ to modelopt/torch/kernels/conv/`;
move tests to `tests/gpu/torch/quantization/kernels/`

### Testing
<!-- Mention how have you tested your change if applicable. -->

- Added test cases to measure the difference between cuDNN and our CUDA
implicit GEMM kernel
- Added an NVFP4 fake quantization test using CUDA code

### Before your PR is "*Ready for review*"

Make sure you read and follow [Contributor
guidelines](https://github.com/NVIDIA/Model-Optimizer/blob/main/CONTRIBUTING.md)
and your commits are signed (`git commit -s -S`).

Make sure you read and follow the [Security Best
Practices](https://github.com/NVIDIA/Model-Optimizer/blob/main/SECURITY.md#security-coding-practices-for-contributors)
(e.g. avoiding hardcoded `trust_remote_code=True`, `torch.load(...,
weights_only=False)`, `pickle`, etc.).

- Is this change backward compatible?: ✅ <!--- If ❌, explain why. -->
- If you copied code from any other sources or added a new PIP
dependency, did you follow guidance in `CONTRIBUTING.md`: ✅ <!---
Mandatory -->
- Did you write any new necessary tests?: ✅ <!--- Mandatory for new
features or examples. -->
- Did you update
[Changelog](https://github.com/NVIDIA/Model-Optimizer/blob/main/CHANGELOG.rst)?:
✅ <!--- Only for new features, API changes, critical bug fixes or
backward incompatible changes. -->

### Additional Information
<!-- E.g. related issue. -->


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Per-backbone quantization/export in a single run with per-backbone
checkpoints and backbone-aware quant filters
* Configurable NVFP4 block-size via CLI/config; improved NVFP4 Conv3D
inference path and Wan 2.2 quantization support
* **Bug Fixes**
* Video-model calibration now respects extra params and forces video
decoding during calibration
* **Documentation**
* Added comprehensive Conv3D implicit‑GEMM kernel documentation; removed
experimental Conv3D prototype docs/benchmark
* **Tests**
* New Wan 2.2 quantization/export tests and expanded Conv3D/FP4 kernel
test coverage
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Signed-off-by: Jingyu Xin <jingyux@nvidia.com>
2026-04-19 12:20:14 +05:30
..
2025-10-28 18:03:46 +00:00

Model Optimizer End-to-End Tests

This directory contains end-to-end tests for the Model Optimizer's examples.

Adding new tests

To add a test for a new example, create a new example directory in tests/examples following the existing examples as guidance. Make sure to use as small models and less data as possible to keep the tests fast. Unless needed, have tests finish under 15 minutes.

Running the tests

To run a test, start from the recommended docker image from our installation docs. Then mount your local modelopt directory to /workspace/Model-Optimizer and run this from the root of the repository.

cd /workspace/Model-Optimizer
pip install -e ".[all,dev-test]"
pytest tests/examples/$TEST

Environment variables

The following environment variables can be set to control the behavior of the tests:

  • MODELOPT_LOCAL_MODEL_ROOT: If set, the tests will use the local model directory instead of downloading the model from the internet. Default is not set, which means the model will be downloaded.