# Evidence: Practice with four virtual CPU devices

Copy this template into your own portfolio and fill it after running your modified exercise.

## Evidence required

Keep package/device reports, global and local shapes, shard index/value tables, NumPy comparisons, changed-shape predictions, and the five-row failure/repair. State that the run uses one host and does not validate TPU performance.

- Command: `python3 phases/00-welcome/03-virtual-cpu-devices/code/main.py`
- Working directory: repository root
- Python / JAX / NumPy versions: 
- Hardware and device: 
- My prediction before running: 
- My change to the exercise: 
- Exit code and meaningful output: 
- Why the result supports or contradicts my prediction: 
- Checkpoint result: 
- Artifact link or saved filename: 
- Portfolio status: saved in local workspace