mirror of https://github.com/Qiskit/qiskit.git
47 lines
2.0 KiB
YAML
47 lines
2.0 KiB
YAML
---
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features:
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Added new methods for executing primitives: :meth:`.BaseSampler.run` and :meth:`.BaseEstimator.run`.
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These methods execute asynchronously and return :class:`.JobV1` objects which
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provide a handle to the exections. These new run methods can be passed :class:`~.QuantumCircuit`
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objects (and observables for :class:`~.BaseEstimator`) that are not registered in the constructor.
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For example::
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estimator = Estimator()
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result = estimator.run(circuits, observables, parameter_values).result()
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This provides an alternative to the previous execution model (which is now deprecated) for the
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:class:`~.BaseSampler` and :class:`~.BaseEstimator` primitives which would take all the inputs via
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the constructor and calling the primitive object with the combination of those input parameters
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to use in the execution.
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deprecations:
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The method of executing primitives has been changed.
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The :meth:`.BaseSampler.__call__` and
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:meth:`.BaseEstimator.__call__` methods were deprecated.
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For example::
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estimator = Estimator(...)
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result = estimator(circuits, observables, parameters)
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sampler = Sampler(...)
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result = sampler(circuits, observables, parameters)
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should be rewritten as
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.. code-block:: python
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estimator = Estimator()
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result = estimator.run(circuits, observables, parameter_values).result()
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sampler = Sampler()
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result = sampler.run(circuits, parameter_values).result()
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Using primitives as context managers is deprecated.
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Not all primitives have a context manager available. When available (e.g. in ``qiskit-ibm-runtime``),
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the session's context manager provides equivalent functionality.
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``circuits``, ``observables``, and ``parameters`` in the constructor was deprecated.
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``circuits`` and ``observables`` can be passed from ``run`` methods.
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``run`` methods do not support ``parameters``. Users need to resort parameter values by themselves.
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