58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
#pragma once
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#include <cstring>
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#include <mutex>
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#include <unordered_map>
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#include <c10/core/Allocator.h>
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#include <c10/util/Flags.h>
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// TODO: rename to c10
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C10_DECLARE_bool(caffe2_report_cpu_memory_usage);
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namespace c10 {
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using MemoryDeleter = void (*)(void*);
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// A helper function that is basically doing nothing.
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C10_API void NoDelete(void*);
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// A simple struct that is used to report C10's memory allocation,
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// deallocation status and out-of-memory events to the profiler
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class C10_API ProfiledCPUMemoryReporter {
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public:
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ProfiledCPUMemoryReporter() = default;
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void New(void* ptr, size_t nbytes);
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void OutOfMemory(size_t nbytes);
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void Delete(void* ptr);
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private:
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std::mutex mutex_;
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std::unordered_map<void*, size_t> size_table_;
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size_t allocated_ = 0;
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size_t log_cnt_ = 0;
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};
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C10_API ProfiledCPUMemoryReporter& profiledCPUMemoryReporter();
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// Get the CPU Allocator.
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C10_API at::Allocator* GetCPUAllocator();
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// Sets the CPU allocator to the given allocator: the caller gives away the
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// ownership of the pointer.
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C10_API void SetCPUAllocator(at::Allocator* alloc, uint8_t priority = 0);
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// Get the Default CPU Allocator
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C10_API at::Allocator* GetDefaultCPUAllocator();
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// Get the Default Mobile CPU Allocator
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C10_API at::Allocator* GetDefaultMobileCPUAllocator();
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// The CPUCachingAllocator is experimental and might disappear in the future.
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// The only place that uses it is in StaticRuntime.
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// Set the CPU Caching Allocator
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C10_API void SetCPUCachingAllocator(Allocator* alloc, uint8_t priority = 0);
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// Get the CPU Caching Allocator
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C10_API Allocator* GetCPUCachingAllocator();
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} // namespace c10
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