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feat: add arms latent pipelines and configs#71

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Lau-JW wants to merge 11 commits intoRobbyant:mainfrom
Lau-JW:arms-ROCM-posttraining
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feat: add arms latent pipelines and configs#71
Lau-JW wants to merge 11 commits intoRobbyant:mainfrom
Lau-JW:arms-ROCM-posttraining

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@Lau-JW Lau-JW commented Apr 17, 2026

Add arms dataset config and scripts for LeRobot conversion, latent extraction, test inference, and submission packaging. Make server imports lazier and flash-attn optional; update .gitignore to avoid committing datasets/models.

Lau-JW and others added 11 commits April 17, 2026 15:40
Add arms dataset config and scripts for LeRobot conversion, latent extraction, test inference, and submission packaging. Make server imports lazier and flash-attn optional; update .gitignore to avoid committing datasets/models.
- Map 26D (dual-arm joints + fingers) to 30D action space with gripper scalars; mask out EEF dims when URDF is unavailable.
- Add latent/action loss weights for two-stage post-training.
- Add test inference heuristic: hold fingers then close in last steps.
- Add arms_train config entry.
…aset init

- Document rsync/git workflow, HF downloads, deps, W&B, and required LeRobot meta files
- Auto-generate missing tasks/episodes_stats for local arms_lerobot exports
- Use python3 in distributed launch scripts for broader default environments

Made-with: Cursor
- Force num_workers=0 when CUDA is already initialized
- Default arms_train load_worker to 0 for reliable first-run training

Made-with: Cursor
- Replace default Pool size 128 with configurable dataset_init_workers (default 8)
- Clamp to CPU count to avoid spawning hundreds of short-lived processes

Made-with: Cursor
- Construct dataset init Pool via spawn to avoid fork+torch storage segfaults
- Default dataset_init_workers to 16 (CPU-side), clamp to CPU count
- Allow ARMS_LEROBOT_PATH and LINGBOT_VA_BASE_PATH to override hardcoded paths
- Keep arms_train W&B disabled by default; avoid clobbering WANDB_* in launcher

Made-with: Cursor
- Add continuous-index rollout options and correct action/joint CSV dims
- Add decode utilities to align fps/resolution/frame count for submissions

Made-with: Cursor
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