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@abbycross
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Thank you very much @andrehche! Are you good with my suggested rewrite of the first paragraph? If so, I'll commit that change and approve the PR.

@abbycross abbycross self-requested a review November 3, 2025 21:07
@jyu00
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jyu00 commented Nov 4, 2025

The section on Multiple circuits in the same job is incorrect. If you submit a large job, it may get divided into smaller jobs and thus interleave with cal jobs. We can fix it in this PR or a separate one.

Also we can probably remove the cal time on smaller device (5-7 qubits). It's been a long time since we've had devices that small (on production) 😁.

@jyu00
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jyu00 commented Nov 4, 2025

Also it sounds like we don't do daily cal anymore. So this section should also be updated:

How long do calibration jobs run for?
We run both daily and hourly calibration jobs. Daily calibrations on a smaller device (5-7 qubits) may take about 30 minutes, while for larger devices (7+ qubits) they could take about 90 minutes. The hourly calibrations run for about 2-3 minutes each hour.

@andrehche
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@jyu00 Thanks for the catch. I'll update that too.

* **Two-qubit gate calibrations and benchmarking**

The amplitude and phase of each pulse is calibrated, and randomized benchmarking in batches of well-separated gates of similar length is run.
The amplitude and phase of each pulse is calibrated, and randomized benchmarking in batches of well-separated gates of similar length is run. These benchmarks are measured on a daily basis.
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This part is a little confusing. Are the two-qubit gates calibrated as needed as well? Add that layer fidelity is also measured daily.

The amplitude and phase of each pulse is calibrated, and randomized benchmarking in batches of well-separated gates of similar length is run.
The amplitude and phase of each pulse is calibrated, and randomized benchmarking in batches of well-separated gates of similar length is run. These benchmarks are measured on a daily basis.

### Hourly calibrations/monitoring
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@dcmckayibm dcmckayibm Nov 10, 2025

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I would change this to just "Hourly monitoring" and put the readout angle calibration into the single qubit section.

It's also confusing what we mean about stability checks vs system health? And when we say some calibrations are "as-needed" can we elaborate on how these system checks trigger the calibrations?

@beckykd
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beckykd commented Dec 8, 2025

Hi @andrehche - This is looking good! Is there any way I can help get it finished up so it can be merged?

@andrehche
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beckykd thanks for the nudge -- still waiting on some internal feedback on this version, so I think we will have some revisions, will update here.

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6 participants