Hierarchical Context Parallel Skill

This skill covers hierarchical context parallelism: nested context-parallel process groups used by cp_comm_type="a2a+p2p" and configured with hierarchical_context_parallel_sizes.

For what hierarchical CP is, when to use it, and the decision tree (a2a+p2p vs pure a2a vs p2p), see:

• @docs/training/hierarchical-context-parallel.md
• @skills/nemo-mbridge-perf-hierarchical-context-parallel/card.yaml

Enablement

Minimal Bridge override: