Made Hypertuner backend compatible with changes to Backend ABC

Author: fjwillemsen

kernel_tuner/backends/hypertuner.py

@@ -168,3 +168,7 @@ def memcpy_dtoh(self, dest, src):
 
     def memcpy_htod(self, dest, src):
         return super().memcpy_htod(dest, src)
+
+    def refresh_memory(self, device_memory, host_arguments, should_sync):
+        """This is a no-op for the hypertuner backend, as it does not manage memory directly."""
+        pass

kernel_tuner/hyper.py

@@ -72,7 +72,7 @@ def put_if_not_present(target_dict, key, value):
     put_if_not_present(kwargs, "verbose", True)
     put_if_not_present(kwargs, "quiet", False)
     put_if_not_present(kwargs, "simulation_mode", False)
-    put_if_not_present(kwargs, "strategy", brute_force)
+    put_if_not_present(kwargs, "strategy", 'brute_force')
     put_if_not_present(kwargs, 'verify', None)
     arguments = [target_strategy]
 

test/test_hyper.py

@@ -34,6 +34,6 @@ def test_hyper(env):
         }
     }
 
-    result, env = tune_hyper_params(target_strategy, hyper_params, iterations=1, compiler_options=compiler_options, verbose=True, cache=None)
+    result, env = tune_hyper_params(target_strategy, hyper_params, restrictions=[], iterations=1, compiler_options=compiler_options, verbose=True, cache=None)
     assert len(result) == 2
     assert 'best_config' in env