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+# IREE dispatch auto-tuning scripts
+`libtuner.py` is the core Python script that provides the fundamental functions for the tuning loop. It imports `candidate_gen.py` for candidate generation. To implement the full tuning loop, `libtuner.py` requires a separate Python script that uses the provided `TuningClient` API from `libtuner.py`.
+
+## Prerequisites
+[Optional] Using virtual environments:
+```shell
+cd tuning
+python -m venv .venv
+source .venv/bin/activate
+```
+Install python dependencies:
+```shell
+pip install -r ./requirements-tuner.txt
+```
+Using the IREE's Python bindings:
+   - Building with CMake
+     ```shell
+     -DIREE_BUILD_PYTHON_BINDINGS=ON \
+     -DPython3_EXECUTABLE="$(which python)"
+     ```
+   - Set environment
+      ```shell
+      source ../iree-build/.env && export PYTHONPATH
+      ```
+For more information, refer to the [IREE documentation](https://iree.dev/building-from-source/getting-started/#python-bindings)
+
+### Overall flow
+
+1. Symlink all scripts and mlir/irpa files in your build dir.
+   - Symlink `iree-build-dir/tools` inside `tuning`.
+   - Symlink ML model MLIR and weights based on `unet.sh`.
+
+2. Copy the attention/matmul spec as `config.mlir` in the tuning dir.
+
+3. Temporarily comment out all the existing configs in `config.mlir`.
+   - Example:
+     ```mlir
+     // , @match_mmt_2048x10240x1280 -> @apply_op_config
+     // , @match_mmt_2048x1280x5120 -> @apply_op_config
+     // , @match_mmt_2048x1280x1280 -> @apply_op_config
+     ```
+
+4. Compile a baseline unet
+```shell
+./unet.sh winograd unet.mlir -o unet_baseline.vmfb --iree-hal-dump-executable-files-to=dump-winograd
+```
+
+5. Find the matmul to tune and copy the `*_benchmark.mlir` file to the build dir.
+```shell
+cp dump-winograd/*_141_*benchmark.mlir ./141.mlir
+```
+
+6. Run the tuning script.
+   - Example:
+    ```shell
+    python punet_autotune.py 141.mlir --devices=hip://GPU-0,hip://GPU-4 --num-candidates=1024
+    ```
+
+7. Check the winner candidate in `result_summary.log`, find and copy the transform spec.
+
+8. Paste the transform spec into the `config.mlir` and uncomment them.
+
+9. Add the match function to the entry point in `config.mlir`
+   - Example:
+     ```mlir
+     @match_something -> @apply_op_config
+     ```
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