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Enable IBMQExperiment checkpointing #327

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sserita opened this issue Jun 20, 2023 · 2 comments · May be fixed by #379
Open

Enable IBMQExperiment checkpointing #327

sserita opened this issue Jun 20, 2023 · 2 comments · May be fixed by #379
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enhancement Request for a new feature or a change to an existing feature
Milestone
0.9.13

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@sserita
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sserita commented Jun 20, 2023

Is your feature request related to a problem? Please describe.
It would be nice if it was possible to do a possible checkpointing of an IBMQExperiment.

Describe the solution you'd like
The use case I'm imagining is that a notebook has generated an IBMQExperiment and submitted at least some of the jobs, but then the kernel dies. It should be able to save the state of the IBMQExperiment on each submit/poll for results. Even on notebook restart, it should be possible to interact with the existing jobs since we save the job ids.
@sserita sserita added the enhancement Request for a new feature or a change to an existing feature label Jun 20, 2023
@nemill
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nemill commented Jun 20, 2023

Environment: Windows 11, Python 3.10.11, PyGSTi 0.9.11.1

Issue:
Attempting to write experiment results, the following error occurs and prevents writing:

Code:
combined_exp.write("C:\Users\nemill\pyGSTi\nathan_scripts")

Error:
TypeError Traceback (most recent call last)
Cell In[30], line 1
----> 1 combined_exp.write("C:\Users\nemill\pyGSTi\nathan_scripts")

File ~\pyGSTi\pygsti\extras\ibmq\ibmqcore.py:384, in IBMQExperiment.write(self, dirname)
382 for atr in _attribute_to_pickle:
383 with open(dirname + '/ibmqexperiment/{}.pkl'.format(atr), 'wb') as f:
--> 384 _pickle.dump(self[atr], f)

TypeError: cannot pickle '_thread.lock' object

@sserita sserita added this to the 0.9.13 milestone Nov 29, 2023
@sserita sserita linked a pull request Dec 2, 2023 that will close this issue
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@sserita sserita modified the milestones: 0.9.13, 0.9.12.1 Dec 2, 2023
@sserita sserita linked a pull request Dec 2, 2023 that will close this issue
IBMQExperiment and FreeformDesign/CombinedExperimentDesign quality-of-life updates #379
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4 tasks
@sserita sserita removed a link to a pull request Dec 2, 2023
IBMQExperiment and FreeformDesign/CombinedExperimentDesign quality-of-life updates #379
Open
4 tasks
@sserita sserita linked a pull request Dec 11, 2023 that will close this issue
IBMQExperiment and FreeformDesign/CombinedExperimentDesign quality-of-life updates #379
Open
4 tasks
@sserita sserita modified the milestones: 0.9.12.1, 0.9.13 Feb 6, 2024
@sserita sserita modified the milestones: 0.9.13, 0.9.12.2 Mar 26, 2024
@sserita sserita modified the milestones: 0.9.12.2, 0.9.13 Apr 2, 2024
@sserita
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sserita commented Jul 26, 2024

TODO: Enable partial checkpointing to avoid big writes for large edesigns

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IBMQExperiment and FreeformDesign/CombinedExperimentDesign quality-of-life updates sandialabs/pyGSTi
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@sserita @nemill