Missing utils.et_generator module in chakra repository, breaking workload ET generation workflow

[edgelhz]

Issue Description

When following the collectiveAPI README, the step to generate workload ET requires running:

python3 -m utils.et_generator.et_generator --num_npus 64 --num_dims 1 --default_comm_size 16384
However, this command fails with ModuleNotFoundError: No module named 'utils', and searching the chakra repository (forked from mlcommons/chakra) for et_generator returns no matches found (see screenshot).
Reproduction Steps
Clone the astra-sim/chakra repository (or check out the current commit 0e3cd40).
Navigate to the chakra directory.
Attempt to run the ET generation command:
bash
运行
python3 -m utils.et_generator.et_generator --num_npus 64 --num_dims 1 --default_comm_size 16384
Observe the ModuleNotFoundError and confirm via GitHub search that et_generator files are missing from the repository.
Expected Behavior
The utils.et_generator.et_generator module should exist in the chakra repository to support the documented workflow.
The ET generation command should run without module not found errors.
Impact
This breaks the end-to-end collective communication simulation workflow documented in collectiveAPI, as users cannot generate the required workload ET files.
Suggested Fix
Restore the utils/et_generator/ directory and its contents (including et_generator.py and necessary __init__.py files).
Or, update the documentation to reflect the current state and provide alternative methods to generate workload ET files.

Screenshot is as followed:<img width="715" height="236" alt="Image" src="https://github.com/user-attachments/assets/6475fd17-f9ba-4f5d-a8a3-42a4ba90f193" />