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/cost_estimator.cc |
22 | * \brief Interface for measuring candidate partition cost. |
23 | */ |
24 | |
25 | #include "./cost_estimator.h" |
26 | |
27 | #include <cmath> |
28 | |
29 | namespace tvm { |
30 | namespace relay { |
31 | namespace collage { |
32 | |
33 | TVM_REGISTER_OBJECT_TYPE(CostEstimatorNode); |
34 | |
35 | CostEstimator::CostEstimator() { |
36 | auto node = make_object<CostEstimatorNode>(); |
37 | data_ = std::move(node); |
38 | } |
39 | |
40 | Cost CostEstimatorNode::Estimate(const IRModule& mod, const Target& target) const { |
41 | // TODO(mbs): Eventually should be abstract. For now bounce to the Python local impl. |
42 | static const runtime::PackedFunc* estimate_seconds = |
43 | runtime::Registry::Get("tvm.relay.collage.estimate_seconds" ); |
44 | ICHECK(estimate_seconds); |
45 | const double value = (*estimate_seconds)(mod, target); |
46 | if (std::isinf(value)) { |
47 | return Cost::Invalid(); |
48 | } else if (std::isnan(value)) { |
49 | return Cost::Unknown(); |
50 | } else { |
51 | return Cost::Value(value); |
52 | } |
53 | } |
54 | |
55 | TVM_REGISTER_GLOBAL("relay.collage.CostEstimator" ).set_body_typed([]() { return CostEstimator(); }); |
56 | |
57 | } // namespace collage |
58 | } // namespace relay |
59 | } // namespace tvm |
60 | |