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QuEraComputing
ppvm
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perf(runtime): faster map_insert + specialized diagonal 2-qubit rotations
- #117
#117
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Roger-luo
merged 14 commits into
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QuEraComputing/ppvm:main
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autotune/trotter-perf-3-main
QuEraComputing/ppvm:autotune/trotter-perf-3-main
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Jun 16, 2026
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perf(runtime): faster map_insert + specialized diagonal 2-qubit rotations
#117
Roger-luo
merged 14 commits into
main
QuEraComputing/ppvm:main
from
autotune/trotter-perf-3-main
QuEraComputing/ppvm:autotune/trotter-perf-3-main
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Commits on Jun 12, 2026
autotune(fix): Reformat unsafe blocks in `rehash` to match rustfmt's expected style (inline `unsafe { … }` on the assignment line).
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autotune(fix): Update snapshot `pauli_sum_creation-5` to reflect the new term insertion order produced by the `rehash` byte-slice optimization.
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autotune: add a specialized `rzz` fast path to `impl RotationTwo for PauliSum` in `crates/ppvm-runtime/src/sum/rot2.rs` that short-circuits commuting terms via a single x-bit comparison and flips o…
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autotune: replace the aux-map buffer in `PauliSum::map_insert` with a reusable scratch `Vec` (new `ACMapInsert::map_insert_vec`) to drop a hashmap probe+insert per produced term and make the per-ca…
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autotune: add a strategy-aware `discard` predicate and use it in `PauliSum::map_insert` to skip inserting gate-produced terms the next `truncate` would drop (no-op for `NoStrategy` / active preserv…
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autotune(fix): restrict the `map_insert` insertion-pruning optimization to the monotonic `CoefficientThreshold` strategy by removing the unsafe `discard` overrides on `MaxPauliWeight`/`MaxLossWeigh…
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autotune: drop the `contains_with` probe in `PauliSum::map_insert`'s merge so a strategy-discarded produced term is skipped unconditionally, removing one hashmap probe per discarded term
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revert(autotune): restore the `contains_with` guard in `PauliSum::map_insert`'s merge
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perf(runtime): specialize `rxx`/`ryy` diagonal rotations and add rot2 tests
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test(runtime): guard the Trotter benchmark result and truncation fidelity
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Potential fix for pull request finding
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Commits on Jun 13, 2026
revert(runtime): remove the unsound `Strategy::discard` insertion-pruning
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fix(runtime): make `rehash` byte-slice hashing sound for all storage
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Commits on Jun 16, 2026
Merge branch 'main' into autotune/trotter-perf-3-main
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