You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
3.7 KiB
99 lines
3.7 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
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. */
|
|
|
|
#include "paddle/fluid/framework/channel.h"
|
|
#include <paddle/fluid/framework/lod_rank_table.h>
|
|
#include <paddle/fluid/framework/lod_tensor_array.h>
|
|
#include <paddle/fluid/framework/reader.h>
|
|
#include "paddle/fluid/framework/op_registry.h"
|
|
#include "paddle/fluid/framework/var_type.h"
|
|
#include "paddle/fluid/operators/concurrency/channel_util.h"
|
|
#include "paddle/fluid/operators/math/math_function.h"
|
|
|
|
static constexpr char Channel[] = "Channel";
|
|
static constexpr char Status[] = "Status";
|
|
static constexpr char Out[] = "Out";
|
|
|
|
namespace paddle {
|
|
namespace operators {
|
|
|
|
void SetReceiveStatus(const platform::Place &dev_place,
|
|
framework::Variable *status_var, bool status) {
|
|
auto cpu = platform::CPUPlace();
|
|
auto status_tensor =
|
|
status_var->GetMutable<framework::LoDTensor>()->mutable_data<bool>({1},
|
|
cpu);
|
|
status_tensor[0] = status;
|
|
}
|
|
|
|
class ChannelRecvOp : public framework::OperatorBase {
|
|
public:
|
|
ChannelRecvOp(const std::string &type,
|
|
const framework::VariableNameMap &inputs,
|
|
const framework::VariableNameMap &outputs,
|
|
const framework::AttributeMap &attrs)
|
|
: framework::OperatorBase(type, inputs, outputs, attrs) {}
|
|
|
|
void InferShape(framework::InferShapeContext *ctx) const {
|
|
PADDLE_ENFORCE(ctx->HasInput(Channel),
|
|
"Input(Channel) of ChannelRecvOp should not be null.");
|
|
PADDLE_ENFORCE(ctx->HasOutput(Out),
|
|
"Input(Channel) of ChannelRecvOp should not be null.");
|
|
PADDLE_ENFORCE(ctx->HasOutput(Status),
|
|
"Output(Status) of ChannelRecvOp should not be null.");
|
|
ctx->SetOutputDim("Status", {1});
|
|
}
|
|
|
|
private:
|
|
void RunImpl(const framework::Scope &scope,
|
|
const platform::Place &dev_place) const override {
|
|
// Get the channel holder created by channel_create op, passed as input.
|
|
framework::ChannelHolder *ch =
|
|
scope.FindVar(Input(Channel))->GetMutable<framework::ChannelHolder>();
|
|
auto output_var = scope.FindVar(Output(Out));
|
|
// Receive the data from the channel.
|
|
bool ok = concurrency::ChannelReceive(ch, output_var);
|
|
|
|
// Set the status output of the `ChannelReceive` call.
|
|
SetReceiveStatus(dev_place, scope.FindVar(Output(Status)), ok);
|
|
}
|
|
};
|
|
|
|
class ChannelRecvOpMaker : public framework::OpProtoAndCheckerMaker {
|
|
public:
|
|
void Make() override {
|
|
AddInput(Channel,
|
|
"(Channel) A variable which \"receives\" the a value sent"
|
|
"to it by a channel_send op.")
|
|
.AsDuplicable();
|
|
AddOutput(Out,
|
|
"(Variable) Output Variable that will hold the data received"
|
|
" from the Channel")
|
|
.AsDuplicable();
|
|
AddOutput(Status,
|
|
"(Tensor) An LoD Tensor that returns a boolean status of the"
|
|
"result of the receive operation.")
|
|
.AsDuplicable();
|
|
AddComment(R"DOC(
|
|
)DOC");
|
|
}
|
|
};
|
|
|
|
} // namespace operators
|
|
} // namespace paddle
|
|
|
|
REGISTER_OPERATOR(channel_recv, paddle::operators::ChannelRecvOp,
|
|
paddle::framework::EmptyGradOpMaker,
|
|
paddle::operators::ChannelRecvOpMaker);
|