[Enhance]: Add validation for expert parallelism settings #1199
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Add validation to prevent simultaneous use of `--enable-expert-parallel` and `expert-tensor-parallel-size` configurations. These settings are mutually exclusive. Implementing this check prevents unexpected behavior and improves error tracing. If both settings are enabled concurrently, the system now throws an error, making it easier to identify and resolve configuration issues. Signed-off-by: Jade Zheng <[email protected]>
Signed-off-by: Jade Zheng <[email protected]>
Signed-off-by: Jade Zheng <[email protected]>
Signed-off-by: Jade Zheng <[email protected]>
ApsarasX
approved these changes
Jun 13, 2025
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Pull Request Overview
Adds a validation step in check_ascend_config to prevent simultaneous use of --enable-expert-parallel and an expert_tensor_parallel_size greater than 1, avoiding conflicting configurations.
- Import
TYPE_CHECKINGand annotatevllm_configwithVllmConfigfor better type safety. - Introduce a runtime check that raises an error when expert parallelism flags conflict.
- Preserve existing experimental ACL graph warnings.
Comments suppressed due to low confidence (1)
vllm_ascend/ascend_config.py:171
- Consider adding a unit test to verify that enabling both
enable_expert_parallelandexpert_tensor_parallel_size > 1reliably raises the intended error.
# for expert parallelism
Signed-off-by: Jade Zheng <[email protected]> Co-authored-by: Copilot <[email protected]>
ApsarasX
reviewed
Jun 16, 2025
| @@ -164,3 +167,10 @@ def check_ascend_config(vllm_config, enforce_eager): | |||
| "ACL Graph is currently experimental. Please " | |||
| "raise an issue on https://github.com/vllm-project/vllm-ascend/issues" | |||
| " if you encourage any Error") | |||
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| # for expert parallelism | |||
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move this validation into check_and_update_config in platform.py?
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This function will be called within check_and_update_config
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@Yikun @wangxiyuan ready to merge. |
wangxiyuan
approved these changes
Jun 17, 2025
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can you update the tests/ut/test_ascend_config.py as well? |
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This pull request has conflicts, please resolve those before we can evaluate the pull request. |
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Add validation to prevent simultaneous use of
--enable-expert-parallelandexpert-tensor-parallel-sizeconfigurations. These settings are mutually exclusive. Implementing this check prevents unexpected behavior and improves error tracing.If both settings are enabled concurrently, the system now throws an error, making it easier to identify and resolve configuration issues.