feat(noise): better handling ser noise model

Author: Sonderfall

qiskit_scaleway/backends/base_job.py

@@ -54,6 +54,7 @@ def __init__(
         self._client = client
         self._circuits = circuits
         self._config = config
+        self._last_progress_message = ""
 
     @property
     def name(self):
@@ -68,6 +69,9 @@ def status(self) -> JobStatus:
             "completed": JobStatus.DONE,
         }
 
+        if job.progress_message is not None:
+            self._last_progress_message = job.progress_message
+
         return status_mapping.get(job.status, JobStatus.ERROR)
 
     def submit(self, session_id: str) -> None:
@@ -111,6 +115,7 @@ def submit(self, session_id: str) -> None:
         if not model:
             raise RuntimeError("Failed to push circuit data")
 
+        self._last_progress_message = ""
         self._job_id = self._client.create_job(
             name=self._name,
             session_id=session_id,
@@ -177,6 +182,6 @@ def _wait_for_result(
                 return self._client.list_job_results(self._job_id)
 
             if status == JobStatus.ERROR:
-                raise JobError("Job error")
+                raise JobError(f"Job failed: {self._last_progress_message}")
 
             time.sleep(fetch_interval)

qiskit_scaleway/backends/qsim/job.py

@@ -62,7 +62,11 @@ def submit(self, session_id: str) -> None:
         # Note 2: Qsim can only handle one circuit at a time
         circuit = RemoveBarriers()(self._circuits[0])
 
-        programs = [QuantumProgram.from_qiskit_circuit(circuit)]
+        programs = [
+            QuantumProgram.from_qiskit_circuit(
+                circuit, QuantumProgramSerializationFormat.QASM_V2
+            )
+        ]
 
         options.pop("circuit_memoization_size")
         shots = options.pop("shots")