[model] Add support for openPangu_Ultra_MoE

[yt0428]

Purpose

Add support for openPangu_Ultra_MoE models
FIX #27019

Test Plan

vllm serve $LOCAL_CKPT_DIR/openpangu-ultra-moe-718b-model \ --data-parallel-size 4 \ --data-parallel-size-local 1 \ --data-parallel-start-rank $NODE_RANK \ --data-parallel-address $MASTER_NODE_IP \ --data-parallel-rpc-port 13389 \ --tensor-parallel-size 8 \ --served-model-name pangu_ultra_moe \ --enable-expert-parallel \ --trust-remote-code \

Test Result

The serving start normally.

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• The purpose of the PR, such as "Fix some issue (link existing issues this PR will resolve)".
• The test plan, such as providing test command.
• The test results, such as pasting the results comparison before and after, or e2e results
• (Optional) The necessary documentation update, such as updating supported_models.md and examples for a new model.
• (Optional) Release notes update. If your change is user facing, please update the release notes draft in the Google Doc.

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[mergify]

Documentation preview: https://vllm--27521.org.readthedocs.build/en/27521/

[gemini-code-assist]

Code Review

This pull request adds support for the openPangu_Ultra_MoE model. The changes include a new model implementation file and updates to various configuration and registry files to integrate the new model. The implementation appears to be largely adapted from the existing deepseek_v2 model.

I've identified a critical issue in the scaling logic within the OpenPanguMoE module, which seems to have been carried over from the deepseek_v2 implementation. This logic flaw could lead to incorrect computations, particularly in float16 precision, potentially affecting the model's output. A detailed comment with a suggested fix is provided below. The other changes appear to be correct and consistent with adding a new model to the framework.

[Bye-legumes]

hi, can you give us (me and https://github.com/kcmnd )the access to your fork repo as we tested it it doent work now. We can fix some codes.