t-imamichi
commented
3 months ago I tried to shorten the script and found that the combination of optimization_level=3 and translation_method=synthesis causes the error.
from qiskit.transpiler.preset_passmanagers import generate_preset_pass_manager
from qiskit_aer import AerSimulator
from qiskit import QuantumCircuit
qc = QuantumCircuit(2)
qc.x(0)
qc.id(0)
print(qc)
backend = AerSimulator()
for i in range(4):
pass_manager = generate_preset_pass_manager(backend=backend, optimization_level=i, translation_method="synthesis")
transpiled_circuit = pass_manager.run(qc)
print("optimization level", i)
print(transpiled_circuit)
print()output (both main branch and qiskit 1.1.1)
┌───┐┌───┐
q_0: ┤ X ├┤ I ├
└───┘└───┘
q_1: ──────────
optimization level 0
┌─────────┐
q_0: ┤ Unitary ├
└─────────┘
q_1: ───────────
optimization level 1
┌─────────┐
q_0: ┤ Unitary ├
└─────────┘
q_1: ───────────
optimization level 2
┌─────────┐
q_0: ┤ Unitary ├
└─────────┘
q_1: ───────────
thread '<unnamed>' panicked at /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.6.5/src/graph_impl/stable_graph/mod.rs:402:17:
StableGraph::add_edge: node index 6 is not a node in the graph
stack backtrace:
0: _rust_begin_unwind
1: core::panicking::panic_fmt
2: petgraph::graph_impl::stable_graph::StableGraph<N,E,Ty,Ix>::add_edge
3: rustworkx::digraph::PyDiGraph::__pymethod___setstate____
4: pyo3::impl_::trampoline::trampoline
5: rustworkx::digraph::<impl pyo3::impl_::pyclass::PyMethods<rustworkx::digraph::PyDiGraph> for pyo3::impl_::pyclass::PyClassImplCollector<rustworkx::digraph::PyDiGraph>>::py_methods::ITEMS::trampoline
6: _method_vectorcall_VARARGS_KEYWORDS
7: __PyEval_EvalFrameDefault
8: _PyEval_EvalCode
9: _run_eval_code_obj
10: _run_mod
11: _pyrun_file
12: __PyRun_SimpleFileObject
13: __PyRun_AnyFileObject
14: _pymain_run_file_obj
15: _pymain_run_file
16: _Py_RunMain
17: _pymain_main
18: _Py_BytesMain
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Traceback (most recent call last):
File "/Users/ima/tasks/4_2024/qiskit/terra/tmp/12909.py", line 12, in <module>
transpiled_circuit = pass_manager.run(qc)
^^^^^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/transpiler/passmanager.py", line 441, in run
return super().run(circuits, output_name, callback, num_processes=num_processes)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/transpiler/passmanager.py", line 464, in wrapper
return meth(*meth_args, **meth_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/transpiler/passmanager.py", line 226, in run
return super().run(
^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/passmanager/passmanager.py", line 232, in run
_run_workflow(program=program, pass_manager=self, callback=callback, **kwargs)
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/passmanager/passmanager.py", line 292, in _run_workflow
passmanager_ir, final_state = flow_controller.execute(
^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/passmanager/base_tasks.py", line 218, in execute
passmanager_ir, state = next_task.execute(
^^^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/passmanager/base_tasks.py", line 218, in execute
passmanager_ir, state = next_task.execute(
^^^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/transpiler/basepasses.py", line 195, in execute
new_dag, state = super().execute(
^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/passmanager/base_tasks.py", line 98, in execute
ret = self.run(passmanager_ir)
^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ima/tasks/4_2024/qiskit/terra/qiskit/transpiler/passes/utils/minimum_point.py", line 100, in run
state.dag = deepcopy(dag)
^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/python@3.12/3.12.4/Frameworks/Python.framework/Versions/3.12/lib/python3.12/copy.py", line 162, in deepcopy
y = _reconstruct(x, memo, *rv)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/python@3.12/3.12.4/Frameworks/Python.framework/Versions/3.12/lib/python3.12/copy.py", line 259, in _reconstruct
state = deepcopy(state, memo)
^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/python@3.12/3.12.4/Frameworks/Python.framework/Versions/3.12/lib/python3.12/copy.py", line 136, in deepcopy
y = copier(x, memo)
^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/python@3.12/3.12.4/Frameworks/Python.framework/Versions/3.12/lib/python3.12/copy.py", line 221, in _deepcopy_dict
y[deepcopy(key, memo)] = deepcopy(value, memo)
^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/python@3.12/3.12.4/Frameworks/Python.framework/Versions/3.12/lib/python3.12/copy.py", line 162, in deepcopy
y = _reconstruct(x, memo, *rv)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/opt/homebrew/Cellar/python@3.12/3.12.4/Frameworks/Python.framework/Versions/3.12/lib/python3.12/copy.py", line 261, in _reconstruct
y.__setstate__(state)
pyo3_runtime.PanicException: StableGraph::add_edge: node index 6 is not a node in the graph
Cryoris
glanzz
weucode
Environment
What is happening?
The transpilation is throwing and error when running the following circuit with the following backend options. I have observed the same with AerSimulator, happening mostly when the optimisation value is set to 3. Compiler options:
How can we reproduce the issue?
What should happen?
Throws the following error:
thread '<unnamed>' panicked at /Users/runner/.cargo/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.6.5/src/graph_impl/stable_graph/mod.rs:402:17: StableGraph::add_edge: node index 20 is not a node in the graphpyo3_runtime.PanicException: StableGraph::add_edge: node index 20 is not a node in the graphAny suggestions?
No response