Parameter Table

The ParameterTable module enables real-time parameter updates and streaming.

ParameterTable

qiskit_qm_provider.parameter_table.parameter_table.ParameterTable

Class enabling the mapping of parameters to be updated to their corresponding “to-be-declared” QUA variables.

__init__(parameters_dict, name: Optional[str] = None)

  • parameters_dict: Can be:

    • A dictionary of form { "name": (initial_value, qua_type, input_type, direction) }.

    • A list of Parameter objects.

  • name: Optional table name.

Methods

  • declare_variables(pause_program=False) Declares all QUA variables in the table. Call this within a QUA program.

  • load_input_values(filter_function=None) Loads values from the configured input mechanism (Input Stream, IO, DGX).

  • push_to_opx(param_dict, job, qm, verbosity) (Client-side) Pushes values to the OPX.

    • param_dict: Dictionary of {parameter_name: value}.

  • fetch_from_opx(job, fetching_index, fetching_size) (Client-side) Fetches values from the OPX (if configured for output/streaming).

  • stream_back(reset=False) (QUA-side) Streams the current parameter values back to the client.

  • from_qiskit(qc: QuantumCircuit, input_type, filter_function) Class method to generate a table from a Qiskit circuit’s parameters.

Parameter

qiskit_qm_provider.parameter_table.parameter.Parameter

Represents a single parameter.

__init__(name, value, qua_type, input_type, direction, units)

  • name: Parameter name.

  • value: Initial value.

  • qua_type: int, float, bool, or fixed.

  • input_type: InputType enum.

  • direction: Direction enum (for DGX).

Methods

  • assign(value): Assigns a value (can be QUA variable or constant) to this parameter.

  • save_to_stream(): Saves the parameter’s current value to its declared stream.

InputType & Direction

qiskit_qm_provider.parameter_table.input_type

InputType

Enum for input mechanisms:

  • DGX_Q: DGX Quantum communication.

  • INPUT_STREAM: Standard QOP Input Stream.

  • IO1, IO2: GPIO inputs.

Direction

Enum for DGX data flow:

  • INCOMING: OPX -> DGX.

  • OUTGOING: DGX -> OPX.

  • BOTH: Bidirectional.