1 /* Copyright 2020 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 #ifndef TENSORFLOW_CORE_TPU_KERNELS_TPU_COMPILATION_CACHE_ENTRY_H_ 16 #define TENSORFLOW_CORE_TPU_KERNELS_TPU_COMPILATION_CACHE_ENTRY_H_ 17 18 #include "tensorflow/compiler/xla/service/hlo.pb.h" 19 #include "tensorflow/core/lib/core/refcount.h" 20 #include "tensorflow/core/tpu/kernels/tpu_executable_info.pb.h" 21 #include "tensorflow/core/tpu/kernels/tpu_program_group_interface.h" 22 23 namespace tensorflow { 24 namespace tpu { 25 26 // Cache entry to hold a `TpuProgramGroupInterface` object that can be used to 27 // fetch a TPU program for a given TPU core index. 28 class TpuCompilationCacheEntry { 29 public: TpuCompilationCacheEntry(const TpuProgramGroupInterface * tpu_program_group,int core_index)30 explicit TpuCompilationCacheEntry( 31 const TpuProgramGroupInterface* tpu_program_group, int core_index) 32 : tpu_program_group_(tpu_program_group), core_index_(core_index) {} 33 34 // Constructor for an empty entry. TpuCompilationCacheEntry()35 TpuCompilationCacheEntry() : tpu_program_group_(nullptr), core_index_(-1) {} 36 tpu_program_group()37 const TpuProgramGroupInterface* tpu_program_group() const { 38 return tpu_program_group_; 39 } 40 core_index()41 int core_index() const { return core_index_; } 42 43 private: 44 const TpuProgramGroupInterface* tpu_program_group_; 45 int core_index_; 46 }; 47 } // namespace tpu 48 } // namespace tensorflow 49 50 #endif // TENSORFLOW_CORE_TPU_KERNELS_TPU_COMPILATION_CACHE_ENTRY_H_ 51