Local Simulation

Divi provides two local simulation backends:

Backend	Description
MaestroSimulator	Default local backend powered by Maestro — supports state vector, MPS, and auto-routing based on circuit size
QiskitSimulator	Qiskit Aer-based simulation — supports noise models, fake backends, and exact expectation values

Configuration Options

ParallelSimulator supports the following configuration:

• simulation_seed — Set a seed for deterministic, reproducible results
• qiskit_backend — Choose a specific Qiskit Aer backend (e.g., "aer_simulator", "aer_simulator_statevector") or use "auto" for automatic selection

Features

Noisy Simulation

Enable noise models for realistic simulation using Qiskit Aer’s NoiseModel, or use a Qiskit fake backend to inherit a realistic noise profile. This is useful for testing error mitigation techniques like ZNE.

Deterministic Mode

Set a simulation seed for reproducible results, useful for debugging and regression testing.

Circuit Depth Tracking

Track circuit depths during execution for performance analysis and depth-reduction strategies.

When to Use Each Backend

• Development and testing: Fast iteration without cloud latency
• Small to medium circuits: Up to ~25 qubits with state vector, more with specialized backends
• Reproducibility: Deterministic seeds for debugging
• Error mitigation testing: Noisy simulation for ZNE development

📖 For code examples and detailed API usage, visit the Divi Documentation.