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Introduce a top-level `LAUNCHER` key in `model_config.yaml` (default: `torchrun`) that allows individual test cases to opt into `ft_launcher` (nvidia-resiliency-ext fault-tolerance launcher) as a drop-in torchrun replacement. All distributed arguments are forwarded unchanged; only the launcher binary is switched. Resolves AUT-360 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: oliver könig <okoenig@nvidia.com>
Enable ft_launcher (nvidia-resiliency-ext fault-tolerance launcher) for the following distributed optimizer / checkpoint-resume test cases: GPT: - gpt3_mcore_te_tp1_pp4_vp1_resume_torch_dist_dist_optimizer_overlap_grad_reduce_param_gather - gpt3_mcore_te_tp2_pp1_resume_torch_dist_multi_dist_optimizer_instances - gpt3_mcore_te_tp4_pp1_resume_torch_dist_dist_optimizer_overlap_grad_reduce_param_gather MoE: - gpt3_mcore_te_tp1_pp2_resume_torch_dist_reshard_2x1x4_te_8experts2parallel_dist_optimizer - gpt3_mcore_te_tp2_pp1_resume_torch_dist_te_8experts2parallel_multi_dist_optimizer_instances - gpt3_moe_mcore_te_tp4_ep2_etp2_pp2_resume_torch_dist_dist_optimizer Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> Signed-off-by: oliver könig <okoenig@nvidia.com>
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/ok to test |
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April 14, 2026 17:55
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Closing in favour of merging directly into #4298. |
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Summary
Enable
ft_launcher(nvidia-resiliency-ext fault-tolerance launcher) for 6 distributed optimizer / checkpoint-resume test cases.GPT:
gpt3_mcore_te_tp1_pp4_vp1_resume_torch_dist_dist_optimizer_overlap_grad_reduce_param_gathergpt3_mcore_te_tp2_pp1_resume_torch_dist_multi_dist_optimizer_instancesgpt3_mcore_te_tp4_pp1_resume_torch_dist_dist_optimizer_overlap_grad_reduce_param_gatherMoE:
gpt3_mcore_te_tp1_pp2_resume_torch_dist_reshard_2x1x4_te_8experts2parallel_dist_optimizergpt3_mcore_te_tp2_pp1_resume_torch_dist_te_8experts2parallel_multi_dist_optimizer_instancesgpt3_moe_mcore_te_tp4_ep2_etp2_pp2_resume_torch_dist_dist_optimizerEach test gets
LAUNCHER: ft_launcheradded to itsmodel_config.yaml, which opts it in to the fault-tolerance launcher introduced in #4298.Example change
Test plan
ft_launchertorchrunbehaviour)🤖 Generated with Claude Code