Remove min execution time check

qiskit_ibm_runtime/options/options.py

@@ -90,7 +90,6 @@ class Options:
     _MAX_OPTIMIZATION_LEVEL = 3
     _MAX_RESILIENCE_LEVEL_ESTIMATOR = 3
     _MAX_RESILIENCE_LEVEL_SAMPLER = 1
-    _MIN_EXECUTION_TIME = 300
     _MAX_EXECUTION_TIME = 8 * 60 * 60  # 8 hours for real device
 
     optimization_level: Optional[int] = None
@@ -168,14 +167,10 @@ def validate_options(options: dict) -> None:
         ResilienceOptions.validate_resilience_options(options.get("resilience"))
         TranspilationOptions.validate_transpilation_options(options.get("transpilation"))
         execution_time = options.get("max_execution_time")
-        if not execution_time is None:
-            if (
-                execution_time < Options._MIN_EXECUTION_TIME
-                or execution_time > Options._MAX_EXECUTION_TIME
-            ):
+        if execution_time is not None:
+            if execution_time > Options._MAX_EXECUTION_TIME:
                 raise ValueError(
-                    f"max_execution_time must be between "
-                    f"{Options._MIN_EXECUTION_TIME} and {Options._MAX_EXECUTION_TIME} seconds."
+                    f"max_execution_time must be below " f"{Options._MAX_EXECUTION_TIME} seconds."
                 )
 
         EnvironmentOptions.validate_environment_options(options.get("environment"))

qiskit_ibm_runtime/utils/qctrl.py

@@ -32,14 +32,10 @@ def validate(options: Dict[str, Any]) -> None:
     # Default validation otherwise.
     TranspilationOptions.validate_transpilation_options(options.get("transpilation"))
     execution_time = options.get("max_execution_time")
-    if not execution_time is None:
-        if (
-            execution_time < Options._MIN_EXECUTION_TIME
-            or execution_time > Options._MAX_EXECUTION_TIME
-        ):
+    if execution_time is not None:
+        if execution_time > Options._MAX_EXECUTION_TIME:
             raise ValueError(
-                f"max_execution_time must be between "
-                f"{Options._MIN_EXECUTION_TIME} and {Options._MAX_EXECUTION_TIME} seconds."
+                f"max_execution_time must be below " f"{Options._MAX_EXECUTION_TIME} seconds."
             )
 
     EnvironmentOptions.validate_environment_options(options.get("environment"))

test/integration/test_job.py

@@ -130,12 +130,6 @@ def test_run_program_override_max_execution_time(self, service):
         job.wait_for_final_state()
         self.assertEqual(job._api_client.job_get(job.job_id())["cost"], job_max_execution_time)
 
-    @run_integration_test
-    def test_invalid_max_execution_time_fails(self, service):
-        """Test that program fails when max_execution_time is less than 300."""
-        with self.assertRaises(ValueError):
-            self._run_program(service, max_execution_time=299)
-
     @run_integration_test
     @production_only
     def test_cancel_job_queued(self, service):

test/unit/test_ibm_primitives.py

@@ -688,7 +688,6 @@ def test_transpilation_options(self):
     def test_max_execution_time_options(self):
         """Test transpilation options."""
         options_dicts = [
-            {"max_execution_time": Options._MIN_EXECUTION_TIME - 1},
             {"max_execution_time": Options._MAX_EXECUTION_TIME + 1},
         ]
         session = MagicMock(spec=MockSession)
@@ -708,7 +707,7 @@ def test_max_execution_time_options(self):
                     inst = cls(session=session, options=opts_dict)
                     inst.run(self.qx, observables=self.obs)
                 self.assertIn(
-                    "max_execution_time must be between 300 and 28800 seconds",
+                    "max_execution_time must be below 28800 seconds",
                     str(exc.exception),
                 )