ngraph_engine_op.h

/* Copyright (c) 2018 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. */

#pragma once

#include <string>
#include <vector>

#include "paddle/fluid/framework/scope.h"
#include "paddle/fluid/operators/ngraph/ngraph_engine.h"
#include "paddle/fluid/platform/device_context.h"
#include "paddle/fluid/platform/place.h"

namespace paddle {
namespace operators {

class NgraphEngineOp : public framework::OperatorWithKernel {
 public:
  using framework::OperatorWithKernel::OperatorWithKernel;

 protected:
  void InferShape(framework::InferShapeContext* ctx) const override {}

  framework::OpKernelType GetExpectedKernelType(
      const framework::ExecutionContext& ctx) const override {
    framework::OpKernelType kt = framework::OpKernelType(
        framework::proto::VarType::FP32, ctx.GetPlace());
    return kt;
  }
};

template <typename DeviceContext, typename T>
class NgraphEngineKernel : public framework::OpKernel<T> {
 public:
  void Compute(const framework::ExecutionContext& ctx) const override {
    auto& scope = ctx.scope();
    auto place = ctx.GetPlace();
    std::string serialized_graph = ctx.Attr<std::string>("graph");
    auto interval = ctx.Attr<std::vector<int>>("interval");

    NgraphEngine ngraph_engine(scope, place, serialized_graph, interval);
    ngraph_engine.Run(scope, place);
  }
};

}  // namespace operators
}  // namespace paddle