50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
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#pragma once
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#include <ATen/core/Generator.h>
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#include <ATen/core/MT19937RNGEngine.h>
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#include <c10/core/GeneratorImpl.h>
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#include <c10/util/Optional.h>
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namespace at {
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struct TORCH_API CPUGeneratorImpl : public c10::GeneratorImpl {
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// Constructors
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CPUGeneratorImpl(uint64_t seed_in = default_rng_seed_val);
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~CPUGeneratorImpl() override = default;
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// CPUGeneratorImpl methods
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std::shared_ptr<CPUGeneratorImpl> clone() const;
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void set_current_seed(uint64_t seed) override;
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void set_offset(uint64_t offset) override;
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uint64_t get_offset() const override;
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uint64_t current_seed() const override;
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uint64_t seed() override;
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void set_state(const c10::TensorImpl& new_state) override;
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c10::intrusive_ptr<c10::TensorImpl> get_state() const override;
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static c10::DeviceType device_type();
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uint32_t random();
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uint64_t random64();
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c10::optional<float> next_float_normal_sample();
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c10::optional<double> next_double_normal_sample();
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void set_next_float_normal_sample(c10::optional<float> randn);
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void set_next_double_normal_sample(c10::optional<double> randn);
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at::mt19937 engine();
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void set_engine(at::mt19937 engine);
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private:
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CPUGeneratorImpl* clone_impl() const override;
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at::mt19937 engine_;
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c10::optional<float> next_float_normal_sample_;
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c10::optional<double> next_double_normal_sample_;
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};
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namespace detail {
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TORCH_API const Generator& getDefaultCPUGenerator();
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TORCH_API Generator
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createCPUGenerator(uint64_t seed_val = default_rng_seed_val);
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} // namespace detail
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} // namespace at
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