1 /* Copyright 2017 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_CORE_COMMON_RUNTIME_GPU_GPU_CUDAMALLOC_ALLOCATOR_H_ 17 #define TENSORFLOW_CORE_COMMON_RUNTIME_GPU_GPU_CUDAMALLOC_ALLOCATOR_H_ 18 19 #include <memory> 20 21 #include "tensorflow/core/common_runtime/gpu/gpu_id.h" 22 #include "tensorflow/core/framework/allocator.h" 23 #include "tensorflow/core/platform/macros.h" 24 #include "tensorflow/core/platform/stream_executor.h" 25 #include "tensorflow/core/platform/types.h" 26 27 namespace tensorflow { 28 29 // An allocator that wraps a GPU allocator and adds debugging 30 // functionality that verifies that users do not write outside their 31 // allocated memory. 32 class GPUcudaMallocAllocator : public Allocator { 33 public: 34 explicit GPUcudaMallocAllocator(Allocator* allocator, 35 PlatformGpuId platform_gpu_id); 36 ~GPUcudaMallocAllocator() override; Name()37 string Name() override { return "gpu_debug"; } 38 void* AllocateRaw(size_t alignment, size_t num_bytes) override; 39 void DeallocateRaw(void* ptr) override; 40 bool TracksAllocationSizes() const override; 41 absl::optional<AllocatorStats> GetStats() override; 42 43 private: 44 Allocator* base_allocator_ = nullptr; // owned 45 46 se::StreamExecutor* stream_exec_; // Not owned. 47 48 TF_DISALLOW_COPY_AND_ASSIGN(GPUcudaMallocAllocator); 49 }; 50 51 } // namespace tensorflow 52 53 #endif // TENSORFLOW_CORE_COMMON_RUNTIME_GPU_GPU_CUDAMALLOC_ALLOCATOR_H_ 54