Raise if abstract circuits are used

qiskit_ibm_runtime/base_primitive.py

@@ -150,6 +150,7 @@ def _run_primitive(self, primitive_inputs: Dict, user_kwargs: Dict) -> RuntimeJo
             and isinstance(self._backend, IBMBackend)
             and isinstance(self._backend.service, QiskitRuntimeService)
             and hasattr(self._backend, "target")
+            and self._service._channel_strategy != "q-ctrl"
         ):
             validate_isa_circuits(primitive_inputs["circuits"], self._backend.target)
 

qiskit_ibm_runtime/utils/utils.py

@@ -17,7 +17,6 @@
 import os
 import re
 import hashlib
-import warnings
 from queue import Queue
 from threading import Condition
 from typing import List, Optional, Any, Dict, Union, Tuple, Sequence
@@ -74,17 +73,14 @@ def validate_isa_circuits(circuits: Sequence[QuantumCircuit], target: Target) ->
     for circuit in circuits:
         message = is_isa_circuit(circuit, target)
         if message:
-            warnings.warn(
+            raise IBMInputValueError(
                 message
-                + " Circuits that do not match the target hardware definition will no longer be "
-                "supported after March 1, 2024. See the transpilation documentation "
+                + " Circuits that do not match the target hardware definition are no longer "
+                "supported after 4 March 2024. See the transpilation documentation "
                 "(https://docs.quantum.ibm.com/transpile) for instructions to transform circuits and "
                 "the primitive examples (https://docs.quantum.ibm.com/run/primitives-examples) to see "
-                "this coupled with operator transformations.",
-                DeprecationWarning,
-                stacklevel=6,
+                "this coupled with operator transformations."
             )
-            break
 
 
 def validate_job_tags(job_tags: Optional[List[str]]) -> None:

releasenotes/notes/isa-circuit-required-ed361bd65cef5ed8.yaml

@@ -0,0 +1,10 @@
+---
+upgrade:
+  - |
+    Circuits that do not match the target hardware definition are no longer
+    supported by Qiskit Runtime primitives, unless ``channel_strategy="q-ctrl"``
+    is used. See the transpilation documentation
+    (https://docs.quantum.ibm.com/transpile) for instructions to transform
+    circuits and the primitive examples
+    (https://docs.quantum.ibm.com/run/primitives-examples) to see
+    this coupled with operator transformations.

test/unit/test_ibm_primitives.py

@@ -36,6 +36,7 @@
 )
 from qiskit_ibm_runtime.ibm_backend import IBMBackend
 from qiskit_ibm_runtime.utils.default_session import _DEFAULT_SESSION
+from qiskit_ibm_runtime.exceptions import IBMInputValueError
 
 from ..ibm_test_case import IBMTestCase
 from ..utils import (
@@ -866,7 +867,7 @@ def test_abstract_circuits(self, primitive):
         else:
             circ.measure_all()
 
-        with self.assertWarnsRegex(DeprecationWarning, "target hardware"):
+        with self.assertRaisesRegex(IBMInputValueError, "target hardware"):
             inst.run(**run_input)
 
     @data(Sampler, Estimator)
@@ -995,3 +996,20 @@ def test_qctrl_unsupported_values_for_options(self):
                             _ = inst.run(self.qx, observables=self.obs, **bad_opt)
 
                         self.assertIn(expected_message, str(exc.exception))
+
+    @data(Sampler, Estimator)
+    def test_qctrl_abstract_circuit(self, primitive):
+        """Test q-ctrl can still accept abstract circuits."""
+        backend = get_mocked_backend()
+        backend._service._channel_strategy = "q-ctrl"
+        inst = primitive(backend=backend)
+
+        circ = QuantumCircuit(3, 3)
+        circ.cx(0, 2)
+        run_input = {"circuits": circ}
+        if isinstance(inst, Estimator):
+            run_input["observables"] = SparsePauliOp("ZZZ")
+        else:
+            circ.measure_all()
+
+        inst.run(**run_input)