1/* Copyright 2022 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations under the License.
14==============================================================================*/
15
16#ifndef TENSORFLOW_DTENSOR_MLIR_COLLECTIVES_COMMON_H_
17#define TENSORFLOW_DTENSOR_MLIR_COLLECTIVES_COMMON_H_
18
19#include <string>
20
21#include "tensorflow/dtensor/cc/tensor_layout.h"
22
23namespace tensorflow {
24namespace dtensor {
25
26// Computes AllReduce partitions using reduced mesh dimension names.
27StatusOr<std::map<DeviceLocation, std::vector<int32>>>
28GetAllReducePartitionsFromReducedDims(
29 const dtensor::Layout& output_layout,
30 const absl::flat_hash_set<std::string>& reduced_dims);
31
32// Use the first device in the mesh to extract the device name.
33StatusOr<std::string> DeviceTypeFromMesh(const Mesh& mesh);
34
35} // namespace dtensor
36} // namespace tensorflow
37
38#endif // TENSORFLOW_DTENSOR_MLIR_COLLECTIVES_COMMON_H_
39