WIP: Add Runner callbacks and option to cancel points

[basnijholt]

Description

cc @tlaeven

This allows to add periodic callbacks to the Runner and adds a way to cancel points that are currently being calculated.

importadaptiveadaptive.notebook_extension()
defdepletion_voltage(x):
"""Calculates a depletion voltage curve. Whenever the result is below 0, we know that for all points to the left of that, the result is also zero. """fromtimeimportsleepfromrandomimportrandomsleep(random())
ifx<-0.3:
# Make some negative points really slowsleep(10)
returnmax(0, x)
learner=adaptive.Learner1D(depletion_voltage, bounds=(-1, 1))
runner=adaptive.Runner(learner, npoints_goal=50)
defcancel_depleted_futures(runner):
ifnotrunner.learner.data:
returnzeros= [xforx, yinsorted(learner.data.items()) ify<=0]
ifnotzeros:
returnforfut, xinrunner.pending_points:
ifx<zeros[-1]:
print(f"cancelling {x=} because f(x={zeros[-1]})=0")
runner.cancel_point(fut)
runner.start_periodic_callback(cancel_depleted_futures, 3)
runner.live_info()

Checklist

• Fixed style issues using pre-commit run --all (first install using pip install pre-commit)
• pytest passed

Type of change

Check relevant option(s).

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• (Code) style fix or documentation update
• This change requires a documentation update

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 12.50000% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.73%. Comparing base (28d4c35) to head (a1821f9).
⚠️ Report is 74 commits behind head on main.

Files with missing lines	Patch %	Lines
adaptive/runner.py	12.50%	20 Missing and 1 partial ⚠️
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Additional details and impacted files

@@ Coverage Diff @@## main #385 +/- ##
==========================================
- Coverage 77.88% 77.73% -0.15% 
==========================================
Files 37 37 Lines 5508 5525 +17 Branches 989 995 +6 ==========================================
+ Hits 4290 4295 +5 - Misses 1066 1078 +12 
Partials 152 152 

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