send_recv.proto 1.3 KB
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/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve. Licensed under
the Apache License, Version 2.0 (the "License"); you may not use this file
except in compliance with the License.
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You may obtain a copy of the License at
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    http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. */
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syntax = "proto3";
package sendrecv;

service SendRecvService {
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  // For parameter server round-robin like hashing, do not split tensors.
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  // Send and recv only one tensor
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  // TODO(typhoonzero): add streaming API
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  rpc SendVariable(VariableMessage) returns (VoidMessage) {}
  // Argument VariableMessage for GetVariable should only contain varname.
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  rpc GetVariable(VariableMessage) returns (VariableMessage) {}
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}

// VariableMessage is serialized paddle variable message.
// It can be:
// LoDTensor
// SelectedRows
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enum VarType {
  LOD_TENSOR = 0;
  SELECTED_ROWS = 1;
}

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message VariableMessage {
  string varname = 1;
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  // TODO(Yancey1989): reference framework::proto::VarDesc::VarType
  VarType type = 2;
  bytes serialized = 3;
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}

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message VoidMessage {}