The `ant_core_r0.9.0` branch of Megatron-LM is invalid.

[lishuai-97]

Describe the bug
Cloning with git clone -b ant_core_r0.9.0 git@code.alipay.com:Arc/Megatron-LM.git fails—the ant_core_r0.9.0 branch appears to be invalid. Could you provide a valid branch name or an updated repository URL?

To Reproduce
Steps to reproduce the unexpected case:

1. What kink of training? [e.g. FDDP]
2. The command using? [e.g. dlrover-run xxxxx xxxx]
3. When and where?
4. See error

Logs or Screenshots
Logs(necessary) or screenshots to help explain your problem.

Expected behavior
A clear and concise description of what you expected to happen.

APP Info (please complete the following information):

• DLRover: [e.g. 0.3.8]
• Torch [e.g. 2.1.2]

ENV Info (please complete the following information):

• Platform: [e.g. ubuntu xxx]
• Python: [e.g. 3.8.1]
• GRPC [e.g. 1.5.x]

HARDWARE Info (please complete the following information):

• Device: [e.g. GPU A100 / NPU Ascend 910]

Additional context
Add any other context about the problem here.

[lishuai-97]

When I used the core_v0.9.0 branch of Megatron-LM, the following warning occurred:

[2025-08-28 13:36:58,572] [WARNING] [megatron_wrapper.py:757:prepare_model_optimizer_scheduler] Unable to import patch_torch from ant_utils.dcp_utils.dcp_utils, you might not using available megatron version. If you want to use a speedup version of megatron,please read atorch doc to use a proper megatron version.