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      1 /* Copyright 2015 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 
     16 #if GOOGLE_CUDA
     17 
     18 #include "tensorflow/core/kernels/scatter_functor.h"
     19 #include "tensorflow/core/framework/register_types.h"
     20 
     21 namespace tensorflow {
     22 
     23 class OpKernelContext;
     24 typedef Eigen::GpuDevice GPUDevice;
     25 
     26 namespace functor {
     27 
     28 // Forward declarations of the functor specializations for GPU.
     29 #define DECLARE_GPU_SPECS_OP(T, Index, op)                   \
     30   template <>                                                \
     31   Index ScatterFunctor<GPUDevice, T, Index, op>::operator()( \
     32       OpKernelContext* c, const GPUDevice& d,                \
     33       typename TTypes<T>::Matrix params,                     \
     34       typename TTypes<T>::ConstMatrix updates,               \
     35       typename TTypes<Index>::ConstFlat indices);            \
     36   extern template struct ScatterFunctor<GPUDevice, T, Index, op>;
     37 
     38 #define DECLARE_GPU_SPECS_INDEX(T, Index)                       \
     39   DECLARE_GPU_SPECS_OP(T, Index, scatter_op::UpdateOp::ASSIGN); \
     40   DECLARE_GPU_SPECS_OP(T, Index, scatter_op::UpdateOp::ADD);    \
     41   DECLARE_GPU_SPECS_OP(T, Index, scatter_op::UpdateOp::SUB);    \
     42   DECLARE_GPU_SPECS_OP(T, Index, scatter_op::UpdateOp::MUL);    \
     43   DECLARE_GPU_SPECS_OP(T, Index, scatter_op::UpdateOp::DIV);
     44 
     45 #define DECLARE_GPU_SPECS(T)         \
     46   DECLARE_GPU_SPECS_INDEX(T, int32); \
     47   DECLARE_GPU_SPECS_INDEX(T, int64);
     48 
     49 TF_CALL_GPU_NUMBER_TYPES_NO_HALF(DECLARE_GPU_SPECS);
     50 
     51 #undef DECLARE_GPU_SPECS
     52 #undef DECLARE_GPU_SPECS_INDEX
     53 #undef DECLARE_GPU_SPECS_OP
     54 
     55 }  // namespace functor
     56 }  // namespace tensorflow
     57 
     58 #else
     59 
     60 #include "tensorflow/core/kernels/scatter_functor.h"
     61 
     62 #endif  // GOOGLE_CUDA
     63