1/* Copyright 2019 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
7http://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#ifndef TENSORFLOW_CORE_KERNELS_COLLECTIVE_NCCL_H_
16#define TENSORFLOW_CORE_KERNELS_COLLECTIVE_NCCL_H_
17
18#include "tensorflow/core/framework/collective.h"
19
20namespace tensorflow {
21#if GOOGLE_CUDA || TENSORFLOW_USE_ROCM
22
23class NcclBase : public CollectiveImplementationInterface {
24 public:
25 explicit NcclBase(CollectiveType type, const string& name);
26 ~NcclBase() override = default;
27
28 // No-op for this collective implementation.
29 Status InitializeCollectiveParams(CollectiveParams* col_params) override;
30
31 // Initializes the device objects and device localities.
32 Status InitializeCollectiveContext(
33 std::shared_ptr<CollectiveContext> col_ctx) override;
34
35 protected:
36 const CollectiveType type_;
37 const string name_;
38 std::shared_ptr<CollectiveContext> col_ctx_;
39 const CollectiveParams* col_params_; // Not owned
40};
41
42#endif // GOOGLE_CUDA || TENSORFLOW_USE_ROCM
43} // namespace tensorflow
44
45#endif // TENSORFLOW_CORE_KERNELS_COLLECTIVE_NCCL_H_
46