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 16 #ifndef TENSORFLOW_COMPILER_XLA_SERVICE_MEMORY_SPACE_ASSIGNMENT_BEST_FIT_REPACKER_H_ 17 #define TENSORFLOW_COMPILER_XLA_SERVICE_MEMORY_SPACE_ASSIGNMENT_BEST_FIT_REPACKER_H_ 18 19 #include "tensorflow/compiler/xla/service/heap_simulator.h" 20 #include "tensorflow/compiler/xla/service/memory_space_assignment_repacking.h" 21 22 namespace xla { 23 24 // This is a repacker algorithm that wraps around best fit heap algorithm in 25 // heap simulator. 26 class MemorySpaceAssignmentBestFitRepacker 27 : public MemorySpaceAssignmentRepacker { 28 public: 29 using Type = GlobalDecreasingSizeBestFitHeap<AllocationBlock>::Type; 30 31 explicit MemorySpaceAssignmentBestFitRepacker( 32 int64_t max_size, int64_t alignment, 33 Type type = GlobalDecreasingSizeBestFitHeap<AllocationBlock>::kTemporal) MemorySpaceAssignmentRepacker(max_size,alignment)34 : MemorySpaceAssignmentRepacker(max_size, alignment), type_(type) {} 35 36 StatusOr<bool> Repack(absl::Span<AllocationBlock*> allocations) override; 37 38 private: 39 Type type_; 40 }; 41 42 } // namespace xla 43 44 #endif // TENSORFLOW_COMPILER_XLA_SERVICE_MEMORY_SPACE_ASSIGNMENT_BEST_FIT_REPACKER_H_ 45