Add n_jobs

examples/tuning_example.py

@@ -0,0 +1,73 @@
+from golem.core.optimisers.graph import OptNode, OptGraph
+from golem.core.optimisers.objective import ObjectiveEvaluate, Objective
+from golem.core.tuning.iopt_tuner import IOptTuner
+from golem.core.tuning.search_space import SearchSpace
+from test.unit.utils import ParamsSumMetric
+
+
+def opt_graph_with_params():
+    node_a = OptNode('a')
+    node_b = OptNode({'name': 'b', 'params': {'b2': 0.7, 'b3': 2}})
+    node_c = OptNode('c', nodes_from=[node_a])
+    node_d = OptNode('d', nodes_from=[node_b])
+    node_final = OptNode('e', nodes_from=[node_c, node_d])
+    graph = OptGraph(node_final)
+    return graph
+
+
+def get_search_space():
+    params_per_operation = {
+        'a': {
+            'a1': {
+                'sampling-scope': [2, 7],
+                'type': 'discrete'
+            },
+            'a2': {
+                'sampling-scope': [1e-3, 1],
+                'type': 'continuous'
+            },
+            'a3': {
+                'sampling-scope': [['A', 'B', 'C']],
+                'type': 'categorical'
+            }
+        },
+        'b': {
+            'b1': {
+                'sampling-scope': [["first", "second", "third"]],
+                'type': 'categorical'
+            },
+            'b2': {
+                'sampling-scope': [0.05, 1.0],
+                'type': 'continuous'
+            },
+        },
+        'e': {
+            'e1': {
+                'sampling-scope': [0.05, 1.0],
+                'type': 'continuous'
+            },
+            'e2': {
+                'sampling-scope': [0.05, 1.0],
+                'type': 'continuous'
+            }
+        },
+        'k': {
+            'k': {
+                'sampling-scope': [1e-2, 10.0],
+                'type': 'continuous'
+            }
+        }}
+    return SearchSpace(params_per_operation)
+
+
+if __name__ == '__main__':
+    search_space = get_search_space()
+    graph = opt_graph_with_params()
+    # ищем такие параметры, чтобы их сумма была максимальна
+    obj_eval = ObjectiveEvaluate(Objective({'sum_metric': ParamsSumMetric.get_value}))
+
+    tuner = IOptTuner(obj_eval, search_space, iterations=20, n_jobs=1)
+    tuned_graph = tuner.tune(graph)
+
+    tuner = IOptTuner(obj_eval, search_space, iterations=20, n_jobs=4)
+    tuned_graph = tuner.tune(graph)

golem/core/tuning/iopt_tuner.py

@@ -10,6 +10,7 @@
 from iOpt.trial import Point, FunctionValue
 
 from golem.core.adapter import BaseOptimizationAdapter
+from golem.core.optimisers.genetic.evaluation import determine_n_jobs
 from golem.core.optimisers.graph import OptGraph
 from golem.core.optimisers.objective import ObjectiveEvaluate
 from golem.core.tuning.search_space import SearchSpace, get_node_operation_parameter_label
@@ -125,12 +126,14 @@ def __init__(self, objective_evaluate: ObjectiveEvaluate,
                          iterations=iterations,
                          n_jobs=n_jobs,
                          deviation=deviation, **kwargs)
+        self.n_jobs = determine_n_jobs(self.n_jobs)
         self.solver_parameters = SolverParameters(r=np.double(r),
                                                   eps=np.double(eps),
                                                   itersLimit=iterations,
                                                   evolventDensity=evolvent_density,
                                                   epsR=np.double(eps_r),
-                                                  refineSolution=refine_solution)
+                                                  refineSolution=refine_solution,
+                                                  numberOfParallelPoints=n_jobs)
 
     def tune(self, graph: DomainGraphForTune, show_progress: bool = True) -> DomainGraphForTune:
         graph = self.adapter.adapt(graph)
@@ -155,7 +158,8 @@ def tune(self, graph: DomainGraphForTune, show_progress: bool = True) -> DomainG
                 console_output = ConsoleOutputListener(mode='full')
                 solver.AddListener(console_output)
 
-            solution = solver.Solve()
+            solver.Solve()
+            solution = solver.GetResults()
             best_point = solution.bestTrials[0].point
             best_parameters = problem.get_parameters_dict_from_iopt_point(best_point)
             final_graph = self.set_arg_graph(graph, best_parameters)