[Feature] Debug update weights from disk of SGLang diffusion with parallesim

[zhaochenyang20]

Checklist

• If this is not a feature request but a general question, please start a discussion at https://github.com/sgl-project/sglang/discussions. Otherwise, it will be closed.
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Motivation

#18306 (comment)

As mentioned here.

Related resources

No response

[dreamyang-liu]

I will follow up on this.