1 /* Copyright 2022 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 #ifndef TENSORFLOW_DTENSOR_MLIR_EXPANSIONS_RESOURCE_SPMD_EXPANDER_H_ 17 #define TENSORFLOW_DTENSOR_MLIR_EXPANSIONS_RESOURCE_SPMD_EXPANDER_H_ 18 19 #include "tensorflow/dtensor/cc/dstatus.h" 20 #include "tensorflow/dtensor/mlir/spmd_expander.h" 21 22 namespace tensorflow { 23 namespace dtensor { 24 25 class ResourceSPMDExpander : public SPMDExpanderBase { 26 private: 27 StatusOr<mlir::Operation*> ExpandOp(mlir::Operation* op) override; 28 29 StatusOr<llvm::DenseMap<int, Layout>> ComputeLayoutForward( 30 mlir::Operation* op, 31 const llvm::DenseMap<int, Layout>& input_layouts) override; 32 33 // Override the backward with both input and output layouts as arguments 34 // because we need to compute some operand layouts from existing operand 35 // layouts. 36 StatusOr<llvm::DenseMap<int, Layout>> ComputeLayoutBackward( 37 mlir::Operation* op, const llvm::DenseMap<int, Layout>& input_layouts, 38 const llvm::DenseMap<int, Layout>& output_layouts) override; 39 }; 40 } // namespace dtensor 41 } // namespace tensorflow 42 43 #endif // TENSORFLOW_DTENSOR_MLIR_EXPANSIONS_RESOURCE_SPMD_EXPANDER_H_ 44