Skill Claude CodeCodex
Analyze NVIDIA Nsight Systems .nsys-rep and exported .sqlite traces for Megatron Bridge training. Use for single-trace diagnosis, before/after comparisons, multi-rank surveys, slow-rank and pipeline-stage analysis, MFU or step-time investigations, GPU busy/compute-absent accounting, communication overlap and…
Skill Claude CodeCodex
Operational guide for choosing and combining parallelism strategies in Megatron Bridge, including sizing rules, hardware topology mapping, and combined parallelism configuration.
Skill Claude CodeCodex
Validate and use packed sequences and long-context training in Megatron-Bridge, including offline LLM packing, collate-time VLM packing, Energon online packing, and CP constraints.
Skill Claude CodeCodex
Operational guide for enabling TP, DP, and PP communication overlap in Megatron-Bridge, including config knobs, code anchors, pitfalls, and verification.
Skill Claude CodeCodex
Operational guide for sharding a VLM vision encoder across the language model's context-parallel ranks in Megatron-Bridge, including config knobs, code anchors, load-balance pitfalls, and measured impact.
Skill Claude CodeCodex
Recommend and customize Megatron Bridge library and benchmark recipes for a user's model, GPU count, hardware, sequence length, and pretrain/SFT/PEFT goal. Use when selecting a starting recipe, comparing library and benchmark configs, resizing parallelism for a GPU allocation, or distinguishing convergence changes…
Skill Claude CodeCodex
Resiliency features in Megatron Bridge including fault tolerance, straggler detection, in-process restart, preemption, and re-run state machine.
Skill Claude CodeCodex
External NeMo-RL end-to-end validation workflow for Megatron-Bridge model/provider changes, including downstream compatibility checks, external RL lifecycle behavior, Megatron policy setup, HF import/export, checkpoint/resume, non-colocated vLLM refit, delta weight transfer, optional LoRA/generation variants, and…
Skill Claude CodeCodex
Structured framework for exact HF↔MCore weight verification, forward-pass logit correlation, and optional strict numerical diagnostics. Use when debugging weight mismatches, verifying HF↔MCore checkpoint round-trips, choosing verification tools, or investigating conversion commits that caused parity failures.…
Skill Claude CodeCodex
Structured single-agent code review workflow for PRs, commits, and local diffs. Use when asked to review code, understand a PR, rubber duck a change, prepare GitHub review comments, compare a change against Megatron Bridge conventions, or produce high-signal findings without subagents or tmux.
Skill Claude CodeCodex
Testing reference for Megatron Bridge — unit and functional test layout, tier semantics (L0/L1/L2/flaky), script conventions, running tests locally, adding/moving/disabling tests, and pytest conventions.
Skill Claude CodeCodex
External verl end-to-end validation workflow for Megatron-Bridge changes. Covers running a small verl Megatron backend job from a Bridge checkout, choosing LoRA/DDP plus optional save/resume and parallelism variants, setting PYTHONPATH so verl imports the local Bridge tree, and reporting pass/fail evidence.