remove unnecessary compilation

CQCL · Dec 24, 2024 · 89fc450 · 89fc450
1 parent 1fa4d95
commit 89fc450
Showing 1 changed file with 7 additions and 10 deletions.
diff --git a/docs/examples/algorithms_and_protocols/pytket_qaoa_maxcut_example.ipynb b/docs/examples/algorithms_and_protocols/pytket_qaoa_maxcut_example.ipynb
@@ -353,9 +353,6 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from pytket import Circuit\n",
-    "\n",
-    "\n",
     "def build_cost_layer(graph: nx.Graph, gamma_val: float) -> Circuit:\n",
     "    circ = Circuit(graph.number_of_nodes())\n",
     "\n",
@@ -476,12 +473,12 @@
     "\n",
     "def eval_qaoa_energy(\n",
     "    backend: Backend,\n",
-    "    compiler_pass: Callable[[Circuit], bool],\n",
     "    guess_mixer_angles: np.array,\n",
     "    guess_cost_angles: np.array,\n",
     "    graph: nx.Graph,\n",
     "    seed: int,\n",
     "    shots: int = 5000,\n",
+    "    compiler_pass: Callable[[Circuit], bool] | None = None,\n",
     ") -> tuple[float, BackendResult]:\n",
     "\n",
     "    # Build Circuit\n",
@@ -491,7 +488,8 @@
     "\n",
     "    # Compile\n",
     "    RemoveBarriers().apply(qaoa_circuit)\n",
-    "    compiler_pass(qaoa_circuit)\n",
+    "    if compiler_pass:\n",
+    "        compiler_pass(qaoa_circuit)\n",
     "\n",
     "    # Execute\n",
     "    result: BackendResult = backend.run_circuit(qaoa_circuit, shots, seed=seed)\n",
@@ -524,12 +522,12 @@
    "source": [
     "def solve_maxcut_instance(\n",
     "    graph: nx.Graph,\n",
-    "    compiler_pass: Callable[[Circuit], bool],\n",
     "    backend: Backend,\n",
     "    iterations: int = 100,\n",
     "    p_value: int = 3,\n",
     "    n_shots: int = 5000,\n",
     "    seed: int = 12345,\n",
+    "    compiler_pass: Callable[[Circuit], bool]| None = None,\n",
     ") -> tuple[BackendResult, np.array, np.array]:\n",
     "\n",
     "    highest_energy = 0\n",
@@ -543,12 +541,12 @@
     "        guess_cost_angles = rng.uniform(0, 1, p_value)\n",
     "        qaoa_energy, result = eval_qaoa_energy(\n",
     "            backend,\n",
-    "            compiler_pass,\n",
     "            guess_mixer_angles,\n",
     "            guess_cost_angles,\n",
     "            seed=seed,\n",
     "            shots=n_shots,\n",
     "            graph=graph,\n",
+    "            compiler_pass=None,\n",
     "        )\n",
     "\n",
     "        if qaoa_energy > highest_energy:\n",
@@ -591,8 +589,7 @@
    "source": [
     "from pytket.extensions.qiskit import AerBackend\n",
     "\n",
-    "backend = AerBackend()\n",
-    "comp = backend.get_compiled_circuit"
+    "backend = AerBackend()"
    ]
   },
   {
@@ -609,7 +606,7 @@
     "%%time\n",
     "qaoa_result, cost_angles, mixer_angles = solve_maxcut_instance(\n",
     "    backend=backend,\n",
-    "    compiler_pass=backend.default_compilation_pass(2).apply,\n",
+    "    compiler_pass=None,\n",
     "    n_shots=5000,\n",
     "    iterations=100,\n",
     "    graph=max_cut_graph,\n",