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cp: fix(diffusion): resolve flux nightly CI failures (2529) into r0.5.0 - #2567

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cp: fix(diffusion): resolve flux nightly CI failures (2529) into r0.5.0#2567
akoumpa merged 1 commit into
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beep boop [馃]: Hi @pthombre 馃憢,

we've cherry picked #2529 into  for you! 馃殌

Please review and approve this cherry pick by your convenience!

Two startup failures in the diffusion nightly functional tests:

- flux_t2i_flow_lora: the CI launcher unconditionally passed
  --fsdp.dp_size, which injects an 'fsdp' section and conflicts with
  the recipe's 'ddp' section (mutual-exclusion ValueError). The
  launcher now skips the override for DDP-based recipes.
- flux_t2i_flow: _build_diffusion_parallel_manager_args called
  dict() on ConfigNode sections, which are not iterable. Normalize
  fsdp/ddp sections via to_dict() before use; this also fixes the
  identical latent bug in the DDP branch.

Signed-off-by: Pranav Prashant Thombre <pthombre@nvidia.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Signed-off-by: NeMo Bot <nemo-bot@nvidia.com>
@svcnvidia-nemo-ci
svcnvidia-nemo-ci requested review from a team as code owners June 15, 2026 17:33
@svcnvidia-nemo-ci svcnvidia-nemo-ci added cherry-pick Run CICD Trigger Testing CICD labels Jun 15, 2026
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/ok to test 803a423

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copy-pr-bot Bot commented Jun 15, 2026

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This pull request requires additional validation before any workflows can run on NVIDIA's runners.

Pull request vetters can view their responsibilities here.

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@akoumpa
akoumpa merged commit c267b55 into r0.5.0 Jun 15, 2026
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akoumpa deleted the cherry-pick-2529-r0.5.0 branch June 15, 2026 20:00
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3 participants