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Replacement of PR "Improve runtime performance of QCUT fragment expansion #4782" #5005
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Hello. You may have forgotten to update the changelog!
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## master #5005 +/- ##
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- Coverage 99.67% 99.66% -0.01%
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Files 394 394
Lines 35670 35399 -271
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- Hits 35554 35282 -272
- Misses 116 117 +1 ☔ View full report in Codecov by Sentry. |
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I'm happy with this change. Thanks Lee!
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Looks good. Nice to know that removing queuing can make such a big difference in performance :)
…sion #4782" (#5005) ### Before submitting Please complete the following checklist when submitting a PR: - [x] All new features must include a unit test. If you've fixed a bug or added code that should be tested, add a test to the test directory! - [x] All new functions and code must be clearly commented and documented. If you do make documentation changes, make sure that the docs build and render correctly by running `make docs`. - [x] Ensure that the test suite passes, by running `make test`. - [x] Add a new entry to the `doc/releases/changelog-dev.md` file, summarizing the change, and including a link back to the PR. - [x] The PennyLane source code conforms to [PEP8 standards](https://www.python.org/dev/peps/pep-0008/). We check all of our code against [Pylint](https://www.pylint.org/). To lint modified files, simply `pip install pylint`, and then run `pylint pennylane/path/to/file.py`. When all the above are checked, delete everything above the dashed line and fill in the pull request template. ------------------------------------------------------------------------------------------------------------ **Context:** Replacement of PR #4782 For large circuits performing the PrepareNode and MeasureNode staged replacements during circuit cutting fragments can be expensive when serialising on an AnnotatedQueue, due to the queuing mechanism overheads. **Description of the Change**: This PR replaces an internally used AnnotatedQueue with a directly built QuantumScript object. **Benefits**: Provides speed-ups for circuit-cutting stage for a large number of circuit fragments. Observed 2x speed-up for a given workload. **Possible Drawbacks**: **Related GitHub Issues**:
Before submitting
Please complete the following checklist when submitting a PR:
All new features must include a unit test.
If you've fixed a bug or added code that should be tested, add a test to the
test directory!
All new functions and code must be clearly commented and documented.
If you do make documentation changes, make sure that the docs build and
render correctly by running
make docs
.Ensure that the test suite passes, by running
make test
.Add a new entry to the
doc/releases/changelog-dev.md
file, summarizing thechange, and including a link back to the PR.
The PennyLane source code conforms to
PEP8 standards.
We check all of our code against Pylint.
To lint modified files, simply
pip install pylint
, and thenrun
pylint pennylane/path/to/file.py
.When all the above are checked, delete everything above the dashed
line and fill in the pull request template.
Context: Replacement of PR #4782
For large circuits performing the PrepareNode and MeasureNode staged replacements during circuit cutting fragments can be expensive when serialising on an AnnotatedQueue, due to the queuing mechanism overheads.
Description of the Change: This PR replaces an internally used AnnotatedQueue with a directly built QuantumScript object.
Benefits: Provides speed-ups for circuit-cutting stage for a large number of circuit fragments. Observed 2x speed-up for a given workload.
Possible Drawbacks:
Related GitHub Issues: