1 /* Copyright 2017 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 #ifndef TENSORFLOW_CORE_COMMON_RUNTIME_RENDEZVOUS_UTIL_H_ 16 #define TENSORFLOW_CORE_COMMON_RUNTIME_RENDEZVOUS_UTIL_H_ 17 18 #include <map> 19 20 #include "tensorflow/core/framework/rendezvous.h" 21 #include "tensorflow/core/lib/core/status.h" 22 23 namespace tensorflow { 24 25 typedef std::map<string, Tensor> NamedTensors; 26 typedef std::function<void(const Status&)> StatusCallback; 27 28 // Uses `rendezvous` to send tensors in `tensors_to_send`. `device_context` 29 // should be the DeviceContext associated with the source of the tensors. 30 // `alloc_attrs` contains information about how the `tensors_to_send` are 31 // allocated. `alloc_attrs` should either be {} or should match the length of 32 // `keys`. 33 Status SendTensorsToRendezvous( 34 RendezvousInterface* rendezvous, DeviceContext* device_context, 35 const std::vector<AllocatorAttributes>& alloc_attrs, 36 const std::vector<string>& keys, gtl::ArraySlice<Tensor> tensors_to_send); 37 38 // Uses `rendezvous` to obtain tensors. `device_context` should be the 39 // DeviceContext associated with the receiving device. `alloc_attrs` contains 40 // information as how to store the received tensors. Should be {} or match the 41 // length of `keys`. 42 void RecvOutputsFromRendezvousAsync( 43 RendezvousInterface* rendezvous, DeviceContext* device_context, 44 const std::vector<AllocatorAttributes>& alloc_attrs, 45 const std::vector<string>& keys, std::vector<Tensor>* received_tensors, 46 StatusCallback done); 47 48 Status RecvOutputsFromRendezvous(RendezvousInterface* rendezvous, 49 NamedTensors* out, 50 const Rendezvous::Args& args); 51 52 } // namespace tensorflow 53 54 #endif // TENSORFLOW_CORE_COMMON_RUNTIME_RENDEZVOUS_UTIL_H_ 55