qiskit.providers.ibmq.runtime.IBMRuntimeService

class IBMRuntimeService(provider)

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Class for interacting with the Qiskit Runtime service.

Qiskit Runtime is a new architecture offered by IBM Quantum that streamlines computations requiring many iterations. These experiments will execute significantly faster within its improved hybrid quantum/classical process.

The Qiskit Runtime Service allows authorized users to upload their Qiskit quantum programs. A Qiskit quantum program, also called a runtime program, is a piece of Python code and its metadata that takes certain inputs, performs quantum and maybe classical processing, and returns the results. The same or other authorized users can invoke these quantum programs by simply passing in parameters.

A sample workflow of using the runtime service:

from qiskit import IBMQ, QuantumCircuit
from qiskit.providers.ibmq import RunnerResult
 
provider = IBMQ.load_account()
backend = provider.backend.ibmq_montreal
 
# List all available programs.
provider.runtime.pprint_programs()
 
# Create a circuit.
qc = QuantumCircuit(2, 2)
qc.h(0)
qc.cx(0, 1)
qc.measure_all()
 
# Execute the circuit using the "circuit-runner" program.
program_inputs = {'circuits': circuit, 'measurement_error_mitigation': True}
options = {'backend_name': backend.name()}
job = provider.runtime.run(program_id="circuit-runner",
                           options=options,
                           inputs=program_inputs)
 
# Get runtime job result.
result = job.result(decoder=RunnerResult)

If the program has any interim results, you can use the callback parameter of the run() method to stream the interim results. Alternatively, you can use the RuntimeJob.stream_results() method to stream the results at a later time, but before the job finishes.

The run() method returns a RuntimeJob object. You can use its methods to perform tasks like checking job status, getting job result, and canceling job.

IBMRuntimeService constructor.

Parameters

provider (AccountProvider) - IBM Quantum account provider.

init

__init__(provider)

IBMRuntimeService constructor.

Parameters

provider (AccountProvider) - IBM Quantum account provider.

Methods


`__init__`(provider)	IBMRuntimeService constructor.
`delete_job`(job_id)	Delete a runtime job.
`delete_program`(program_id)	Delete a runtime program.
`job`(job_id)	Retrieve a runtime job.
`jobs`([limit, skip])	Retrieve all runtime jobs.
`logout`()	Clears authorization cache on the server.
`pprint_programs`([refresh])	Pretty print information about available runtime programs.
`program`(program_id[, refresh])	Retrieve a runtime program.
`programs`([refresh])	Return available runtime programs.
`run`(program_id, options, inputs[, callback, …])	Execute the runtime program.
`upload_program`(data[, metadata, name, …])	Upload a runtime program.

delete_job

delete_job(job_id)

Delete a runtime job.

Note that this operation cannot be reversed.

Parameters

job_id (str) - ID of the job to delete.

Raises

RuntimeJobNotFound – If the job doesn’t exist.
QiskitRuntimeError – If the request failed.

Return type

None

delete_program

delete_program(program_id)

Delete a runtime program.

Parameters

program_id (str) - Program ID.

Raises

RuntimeProgramNotFound – If the program doesn’t exist.
QiskitRuntimeError – If the request failed.

Return type

None

job

job(job_id)

Retrieve a runtime job.

Parameters

job_id (str) - Job ID.

Return type

RuntimeJob

Returns

Runtime job retrieved.

Raises

RuntimeJobNotFound – If the job doesn’t exist.
QiskitRuntimeError – If the request failed.

jobs

jobs(limit=10, skip=0)

Retrieve all runtime jobs.

Parameters

limit (int) – Number of jobs to retrieve.
skip (int) – Starting index for the job retrieval.

Return type

List [RuntimeJob]

Returns

A list of runtime jobs.

logout

logout()

Clears authorization cache on the server.

For better performance, the runtime server caches each user’s authorization information. This method is used to force the server to clear its cache.

Note

Invoking this method ONLY when your access level to the runtime service has changed - for example, the first time your account is given the authority to upload a program.

Return type

None

pprint_programs

pprint_programs(refresh=False)

Pretty print information about available runtime programs.

Parameters

refresh (bool) - If True, re-query the server for the programs. Otherwise return the cached value.

Return type

None

program

program(program_id, refresh=False)

Retrieve a runtime program.

Currently only program metadata is returned.

Parameters

program_id (str) – Program ID.
refresh (bool) – If True, re-query the server for the program. Otherwise return the cached value.

Return type

RuntimeProgram

Returns

Runtime program.

Raises

RuntimeProgramNotFound – If the program does not exist.
QiskitRuntimeError – If the request failed.

programs

programs(refresh=False)

Return available runtime programs.

Currently only program metadata is returned.

Parameters

refresh (bool) - If True, re-query the server for the programs. Otherwise return the cached value.

Return type

List [RuntimeProgram]

Returns

A list of runtime programs.

run

run(program_id, options, inputs, callback=None, result_decoder=None)

Execute the runtime program.

Parameters

$program_id (str) - Program ID.$
$options (Dict) - Runtime options that control the execution environment. Currently the only available option is backend_name, which is required.$
$inputs (Dict) - Program input parameters. These input values are passed to the runtime program.$
callback (Optional[Callable]) –

Callback function to be invoked for any interim results. The callback function will receive 2 positional parameters:
1. Job ID
2. Job interim result.
$result_decoder (Optional [Type [ResultDecoder]]) - A ResultDecoder subclass used to decode job results. ResultDecoder is used if not specified.$

Return type

RuntimeJob

Returns

A RuntimeJob instance representing the execution.

Raises

IBMQInputValueError - If input is invalid.

upload_program

upload_program(data, metadata=None, name=None, max_execution_time=None, description=None, version=None, backend_requirements=None, parameters=None, return_values=None, interim_results=None)

Upload a runtime program.

In addition to program data, the following program metadata is also required:

name

max_execution_time

description

Program metadata can be specified using the metadata parameter or individual parameter (for example, name and description). If the same metadata field is specified in both places, the individual parameter takes precedence. For example, if you specify:

upload_program(metadata={"name": "name1"}, name="name2")

name2 will be used as the program name.

Parameters

data (Union[bytes, str]) – Name of the program file or program data to upload.
metadata (Union[Dict, str, None]) – Name of the program metadata file or metadata dictionary. A metadata file needs to be in the JSON format. See program/program_metadata_sample.yaml for an example.
name (Optional[str]) – Name of the program. Required if not specified via metadata.
max_execution_time (Optional[int]) – Maximum execution time in seconds. Required if not specified via metadata.
description (Optional[str]) – Program description. Required if not specified via metadata.
version (Optional[float]) – Program version. The default is 1.0 if not specified.
backend_requirements (Optional[str]) – Backend requirements.
parameters (Optional[List[ProgramParameter]]) – A list of program input parameters.
return_values (Optional[List[ProgramResult]]) – A list of program return values.
interim_results (Optional[List[ProgramResult]]) – A list of program interim results.

Return type

str

Returns

Program ID.

Raises

IBMQInputValueError – If required metadata is missing.
RuntimeDuplicateProgramError – If a program with the same name already exists.
IBMQNotAuthorizedError – If you are not authorized to upload programs.
QiskitRuntimeError – If the upload failed.

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