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
29namespace tvm {
30namespace relay {
31namespace collage {
32
33TVM_REGISTER_OBJECT_TYPE(CostEstimatorNode);
34
35CostEstimator::CostEstimator() {
36 auto node = make_object<CostEstimatorNode>();
37 data_ = std::move(node);
38}
39
40Cost 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
55TVM_REGISTER_GLOBAL("relay.collage.CostEstimator").set_body_typed([]() { return CostEstimator(); });
56
57} // namespace collage
58} // namespace relay
59} // namespace tvm
60