Monitor or cancel a job
Jobs are listed on the Jobs page for your quantum service channel:
- IBM Cloud® channel: From the IBM Cloud console quantum Instances page(opens in a new tab), click the name of your instance, then click the Jobs tab.
- IBM Quantum™ channel: In IBM Quantum Platform, open the Jobs page(opens in a new tab).
Monitor a job
Use the job instance to check the job status or retrieve the results by calling the appropriate command:
| job.result() | Review job results immediately after the job completes. Job results are available after the job completes. Therefore, job.result() is a blocking call until the job completes. |
| job.job_id() | Return the ID that uniquely identifies that job. Retrieving the job results at a later time requires the job ID. Therefore, it is recommended that you save the IDs of jobs you might want to retrieve later. |
| job.status() | Check the job status. |
| job = service.job(<job_id>) | Retrieve a job you previously submitted. This call requires the job ID. |
Retrieve job results at a later time
Call service.job(\<job\_id>) to retrieve a job you previously submitted. If you don’t have the job ID, or if you want to retrieve multiple jobs at once; including jobs from retired QPUs (quantum processing units), call service.jobs() with optional filters instead. See QiskitRuntimeService.jobs.
service.jobs() returns only Qiskit Runtime jobs. To retrieve other jobs, use qiskit-ibm-provider instead.
Example
This example returns the 10 most recent runtime jobs that were run on my_backend:
from qiskit_ibm_runtime import QiskitRuntimeService
# Initialize the account first.
service = QiskitRuntimeService()
service.jobs(backend_name=my_backend)Cancel a job
You can cancel a job from the IBM Quantum Platform dashboard either on the Jobs page or the details page for a specific job. Click the menu with three vertical dots (at the end of the row on the Jobs page, or the top of the page on the Job details page), and select Cancel.
In Qiskit, use job.cancel() to cancel a job.
Next steps
- Try the Grover's algorithm(opens in a new tab) tutorial.
- View the
job_monitordocumentation in the Qiskit IBM Provider API reference.