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---
title: ProgramBackend (v0.31)
description: API reference for qiskit.providers.ibmq.runtime.ProgramBackend in qiskit v0.31
in_page_toc_min_heading_level: 1
python_api_type: class
python_api_name: qiskit.providers.ibmq.runtime.ProgramBackend
---
# ProgramBackend
<Class id="qiskit.providers.ibmq.runtime.ProgramBackend" isDedicatedPage={true} github="https://github.com/qiskit/qiskit-ibmq-provider/tree/stable/0.17/qiskit/providers/ibmq/runtime/program/program_backend.py" signature="ProgramBackend(configuration, provider=None, **fields)" modifiers="class">
Bases: `qiskit.providers.backend.BackendV1`, `abc.ABC`
Base class for a program backend.
This is a [`Backend`](qiskit.providers.Backend "qiskit.providers.Backend") class for runtime programs to submit circuits.
Initialize a backend class
**Parameters**
* **configuration** ([*BackendConfiguration*](qiskit.providers.models.BackendConfiguration "qiskit.providers.models.BackendConfiguration")) A backend configuration object for the backend object.
* **provider** ([*qiskit.providers.Provider*](qiskit.providers.Provider "qiskit.providers.Provider")) Optionally, the provider object that this Backend comes from.
* **fields** kwargs for the values to use to override the default options.
**Raises**
**AttributeError** if input field not a valid options
In addition to the public abstract methods, subclasses should also implement the following private methods:
### \_default\_options
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend._default_options" signature="_default_options()" modifiers="abstract classmethod">
Return the default options
This method will return a [`qiskit.providers.Options`](qiskit.providers.Options "qiskit.providers.Options") subclass object that will be used for the default options. These should be the default parameters to use for the options of the backend.
**Returns**
**A options object with**
default values set
**Return type**
[qiskit.providers.Options](qiskit.providers.Options "qiskit.providers.Options")
</Function>
## Methods
<span id="qiskit-providers-ibmq-runtime-programbackend-configuration" />
### configuration
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend.configuration" signature="ProgramBackend.configuration()">
Return the backend configuration.
**Returns**
the configuration for the backend.
**Return type**
[BackendConfiguration](qiskit.providers.models.BackendConfiguration "qiskit.providers.models.BackendConfiguration")
</Function>
<span id="qiskit-providers-ibmq-runtime-programbackend-name" />
### name
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend.name" signature="ProgramBackend.name()">
Return the backend name.
**Returns**
the name of the backend.
**Return type**
str
</Function>
<span id="qiskit-providers-ibmq-runtime-programbackend-properties" />
### properties
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend.properties" signature="ProgramBackend.properties()">
Return the backend properties.
**Returns**
the configuration for the backend. If the backend does not support properties, it returns `None`.
**Return type**
[BackendProperties](qiskit.providers.models.BackendProperties "qiskit.providers.models.BackendProperties")
</Function>
<span id="qiskit-providers-ibmq-runtime-programbackend-provider" />
### provider
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend.provider" signature="ProgramBackend.provider()">
Return the backend Provider.
**Returns**
the Provider responsible for the backend.
**Return type**
[Provider](qiskit.providers.Provider "qiskit.providers.Provider")
</Function>
<span id="qiskit-providers-ibmq-runtime-programbackend-run" />
### run
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend.run" signature="ProgramBackend.run(circuits, timeout=None, **run_config)" modifiers="abstract">
Run on the backend.
Runtime circuit execution is synchronous, and control will not go back until the execution finishes. You can use the timeout parameter to set a timeout value to wait for the execution to finish. Note that if the execution times out, circuit execution results will not be available.
**Parameters**
* **circuits** (`Union`\[`QasmQobj`, `PulseQobj`, `QuantumCircuit`, `Schedule`, `List`\[`Union`\[`QuantumCircuit`, `Schedule`]]]) An individual or a list of `QuantumCircuit` or [`Schedule`](qiskit.pulse.Schedule "qiskit.pulse.Schedule") objects to run on the backend. A [`QasmQobj`](qiskit.qobj.QasmQobj "qiskit.qobj.QasmQobj") or a [`PulseQobj`](qiskit.qobj.PulseQobj "qiskit.qobj.PulseQobj") object is also supported but is deprecated.
* **timeout** (`Optional`\[`int`]) Seconds to wait for circuit execution to finish.
* **\*\*run\_config** Extra arguments used to configure the run.
**Return type**
`JobV1`
**Returns**
The job to be executed.
**Raises**
* [**IBMQBackendApiError**](qiskit.providers.ibmq.IBMQBackendApiError "qiskit.providers.ibmq.IBMQBackendApiError") If an unexpected error occurred while submitting the job.
* [**IBMQBackendApiProtocolError**](qiskit.providers.ibmq.IBMQBackendApiProtocolError "qiskit.providers.ibmq.IBMQBackendApiProtocolError") If an unexpected value received from the server.
* [**IBMQBackendValueError**](qiskit.providers.ibmq.IBMQBackendValueError "qiskit.providers.ibmq.IBMQBackendValueError") If an input parameter value is not valid.
</Function>
<span id="qiskit-providers-ibmq-runtime-programbackend-set-options" />
### set\_options
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend.set_options" signature="ProgramBackend.set_options(**fields)">
Set the options fields for the backend
This method is used to update the options of a backend. If you need to change any of the options prior to running just pass in the kwarg with the new value for the options.
**Parameters**
**fields** The fields to update the options
**Raises**
**AttributeError** If the field passed in is not part of the options
</Function>
<span id="qiskit-providers-ibmq-runtime-programbackend-status" />
### status
<Function id="qiskit.providers.ibmq.runtime.ProgramBackend.status" signature="ProgramBackend.status()">
Return the backend status.
**Returns**
the status of the backend.
**Return type**
[BackendStatus](qiskit.providers.models.BackendStatus "qiskit.providers.models.BackendStatus")
</Function>
## Attributes
### options
<Attribute id="qiskit.providers.ibmq.runtime.ProgramBackend.options">
Return the options for the backend
The options of a backend are the dynamic parameters defining how the backend is used. These are used to control the [`run()`](qiskit.providers.ibmq.runtime.ProgramBackend#run "qiskit.providers.ibmq.runtime.ProgramBackend.run") method.
</Attribute>
### version
<Attribute id="qiskit.providers.ibmq.runtime.ProgramBackend.version" attributeValue="1" />
</Class>