Standardize MatFormer tier metadata in exported checkpoints #5
Description
Problem
Tiered checkpoint metadata is inconsistent: exported tiered checkpoints can lack matformer_base_intermediate_size and may set matformer_tier=0, which makes auto-detection unreliable for remote repos.
Refs:
scripts/export_matformer_tiers.py(tier export)
Expected
Tiered checkpoints should always include:
intermediate_size(sliced)matformer_tier(actual tier)matformer_base_intermediate_size(base width before slicing)
Possible Approach
- Update export/packaging tooling to write these fields consistently.
- Add validation or a small test to ensure metadata correctness.
Acceptance Criteria
- Exported tiered checkpoints always include correct tier metadata.
- Auto-detection works for both local and remote checkpoints.