1/*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20/*!
21 * \file src/relay/collage/custom_cost_estimator.cc
22 * \brief A custom CostEstimator to support target-specific cost functions.
23 */
24
25#ifndef TVM_RELAY_COLLAGE_CUSTOM_COST_ESTIMATOR_H_
26#define TVM_RELAY_COLLAGE_CUSTOM_COST_ESTIMATOR_H_
27
28#include <tvm/relay/function.h>
29
30#include "./cost.h"
31#include "./cost_estimator.h"
32
33namespace tvm {
34namespace relay {
35namespace collage {
36
37/*!
38 * \brief A cost estimator that uses a target-specific cost function.
39 */
40class CustomCostEstimatorNode : public CostEstimatorNode {
41 public:
42 Cost Estimate(const IRModule& mod, const Target& target) const override;
43
44 static constexpr const char* _type_key = "relay.collage.CustomCostEstimator";
45 TVM_DECLARE_FINAL_OBJECT_INFO(CustomCostEstimatorNode, CostEstimatorNode);
46
47 protected:
48 /*!
49 * \brief Python implemented cost function name.
50 */
51 String py_fn_estimator_;
52
53 friend class CustomCostEstimator;
54};
55
56class CustomCostEstimator : public CostEstimator {
57 public:
58 explicit CustomCostEstimator(String py_fn_estimator);
59
60 TVM_DEFINE_OBJECT_REF_METHODS(CustomCostEstimator, CostEstimator, CustomCostEstimatorNode);
61};
62
63} // namespace collage
64} // namespace relay
65} // namespace tvm
66
67#endif // TVM_RELAY_COLLAGE_CUSTOM_COST_ESTIMATOR_H_
68