1 /* Copyright 2018 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_COMPILER_XLA_SERVICE_CONVOLUTION_GROUP_CONVERTER_H_ 17 #define TENSORFLOW_COMPILER_XLA_SERVICE_CONVOLUTION_GROUP_CONVERTER_H_ 18 19 #include "absl/strings/string_view.h" 20 #include "tensorflow/compiler/xla/service/hlo_module.h" 21 #include "tensorflow/compiler/xla/service/hlo_pass_interface.h" 22 #include "tensorflow/compiler/xla/status_macros.h" 23 24 namespace xla { 25 26 // A pass which rewrites convolutions with feature_group_count > 1 into 27 // convolutions with feature_group_count = 1. 28 class ConvolutionGroupConverter : public HloModulePass { 29 public: 30 ConvolutionGroupConverter(std::function<bool(HloInstruction*)> is_cost_viable, 31 bool convert_batch_groups_only, 32 bool canonicalize_depthwise_filter = false) is_cost_viable_(is_cost_viable)33 : is_cost_viable_(is_cost_viable), 34 convert_batch_groups_only_(convert_batch_groups_only), 35 filter_expansion_(canonicalize_depthwise_filter) {} 36 name()37 absl::string_view name() const override { 38 return "convolution-group-converter"; 39 } 40 41 // Run convolution rewriting on the given computation. Returns whether the 42 // computation was changed. 43 StatusOr<bool> Run(HloModule* module) override; 44 45 // Lambda containing cost model that decides whether to expand 46 // batch_group_count. 47 std::function<bool(HloInstruction*)> is_cost_viable_; 48 49 // Decides whether to convert batch groups or feature groups. 50 bool convert_batch_groups_only_; 51 52 // Tells whether filter expansion is required. 53 bool filter_expansion_; 54 }; 55 56 } // namespace xla 57 58 #endif // TENSORFLOW_COMPILER_XLA_SERVICE_CONVOLUTION_GROUP_CONVERTER_H_ 59