Consolidate transpiler pass port related release notes

raynelfss · Nov 27, 2024 · eae5da2 · eae5da2
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diff --git a/releasenotes/notes/1.3/optimize-1q-gates-decomposition-ce111961b6782ee0.yaml b/releasenotes/notes/1.3/optimize-1q-gates-decomposition-ce111961b6782ee0.yaml
@@ -6,7 +6,3 @@ features_transpiler:
     contain a :class:`.ControlFlowOp`. This was possible before using the
     :meth:`.DAGCircuit.op_nodes` method and passing the :class:`.ControlFlowOp` class
     as a filter, but this new function will perform the operation faster.
-  - |
-    Ported the entirety of the :class:`.Optimize1qGatesDecomposition` transpiler
-    pass to Rust. This improves the runtime performance of the pass between 5x
-    to 10x.
diff --git a/releasenotes/notes/1.3/oxidize-basis-translator-e246a99118bd9486.yaml b/releasenotes/notes/1.3/oxidize-basis-translator-e246a99118bd9486.yaml
diff --git a/releasenotes/notes/1.3/oxidize-commutation-analysis-d2fc81feb6ca80aa.yaml b/releasenotes/notes/1.3/oxidize-commutation-analysis-d2fc81feb6ca80aa.yaml
diff --git a/releasenotes/notes/1.3/oxidize-transpiler-passes-16f2f1c57612e74a.yaml b/releasenotes/notes/1.3/oxidize-transpiler-passes-16f2f1c57612e74a.yaml
@@ -0,0 +1,53 @@
+---
+features_transpiler:
+  - |
+    Most of the transpiler passes required by the preset pass manager have
+    been ported into Rust.
+
+    * The :class:`.ConsolidateBlocks` pass will now run the equivalent of the
+      :class:`.Collect2qBlocks` pass internally if it was not run in a pass
+      manager prior to the pass. Previously, 
+      :class:`.Collect2qBlocks` or :class:`.Collect1qRuns` had to be run before
+      :class:`.ConsolidateBlocks` for :class:`.ConsolidateBlocks` to do
+      anything. By doing the collection internally, the overhead from the pass
+      is reduced. If :class:`.Collect2qBlocks` or :class:`.Collect1qRuns` are
+      run prior to :class:`.ConsolidateBlocks,` the collected runs by those
+      passes from the property set are used and there is no change in behavior
+      for the pass. The pass now runs up to 3x faster than it did with Python.
+    
+    * The :class:`.BasisTranslator` transpiler pass has been reimplemented
+      to work purely from Rust, taking advantage of all the other structures
+      that currently exist there, such as the :class:`.Target`, :class:`.EquivalenceLibrary`,
+      and the :class:`.DAGCircuit`. The pass itself now runs 
+      3x to 5x faster than it did in Python.
+
+    * Added a Rust implementation of :class:`.CommutationAnalysis` in :func:`.analyze_commutations`.
+      Testing on ASV benchmarks reveals increased performance of up to 3x compared to Python.
+
+    * Port most of the logic of the transpiler pass :class:`~.ElidePermutations`
+      to Rust. On certain tests the demostrated speedup is between 5x and 10x from
+      its previous Python implementation.
+
+    * Ported the entirety of the :class:`.Optimize1qGatesDecomposition` transpiler
+      pass to Rust. This improves the runtime performance of the pass between 5x
+      to 10x.
+    
+    * The :class:`.CommutationChecker` class has been reimplemented in
+      Rust. This retains the same functionality as before but is now
+      significantly faster in most cases. Depending on the circuit type
+      we can observe a speedup of 5x.
+    
+    * Added circuit library functions :func:`.pauli_feature_map`, :func:`.z_feature_map`,
+      :func:`.zz_feature_map` to construct Pauli feature map circuits. These functions
+      are approximately 8x faster than the current circuit library objects,
+      :class:`.PauliFeatureMap`, :class:`.ZFeatureMap`, and :class:`.ZZFeatureMap`,
+      and will replace them in the future. Note, that the new functions return a plain
+      :class:`.QuantumCircuit` instead of a :class:`.BlueprintCircuit`. From multiple benchmarks
+      a speedup of up to 8x was observed, in comparison to Python.
+
+      The functions can be used as drop-in replacement::
+
+        from qiskit.circuit.library import pauli_feature_map, PauliFeatureMap
+
+        fm = pauli_feature_map(20, paulis=["z", "xx", "yyy"])
+        also_fm = PauliFeatureMap(20, paulis=["z", "xx", "yyy"]).decompose()
diff --git a/releasenotes/notes/1.3/port-elide-permutations-ed91c3d9cef2fec6.yaml b/releasenotes/notes/1.3/port-elide-permutations-ed91c3d9cef2fec6.yaml
diff --git a/releasenotes/notes/1.3/prepare-1.3.0-7c45598775fc2bbf.yaml b/releasenotes/notes/1.3/prepare-1.3.0-7c45598775fc2bbf.yaml
@@ -37,4 +37,5 @@ prelude: >
         improvements to the :class:`.HighLevelSynthesis` transpiler pass, which can now take
         into account idle auxiliary qubits to find the best available decomposition for a given gate.
 
-      * The minimum supported Python version is now 3.9 as Python 3.8 went end of life in 2024-10. Official support for Python 3.13 support was also added in this release.
+      * The minimum supported Python version is now 3.9 as Python 3.8 went end of life in 2024-10.
+        Official support for Python 3.13 support was also added in this release.
diff --git a/releasenotes/notes/1.3/rust-commutation-checker-c738e67efa9d292f.yaml b/releasenotes/notes/1.3/rust-commutation-checker-c738e67efa9d292f.yaml
diff --git a/releasenotes/notes/1.3/rust-consolidation-a791a00380fc78b8.yaml b/releasenotes/notes/1.3/rust-consolidation-a791a00380fc78b8.yaml
diff --git a/releasenotes/notes/1.3/rust-paulifm-1dc7b1c2dc756614.yaml b/releasenotes/notes/1.3/rust-paulifm-1dc7b1c2dc756614.yaml