avg_pool2d_module.hpp

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#pragma once
 
#include <optional>
#include "pulsatrix/module.hpp"
 
namespace pulsatrix {
 
class AvgPool2DModule : public Module {
public:
    AvgPool2DModule(int64_t kernel_h, int64_t kernel_w, DeviceBackend* backend, float eps = 1e-6f);
 
    [[nodiscard]] Tensor backward(const Tensor& grad_output) override;
 
    [[nodiscard]] OpType op_type() const override { return OpType::Pooling; }
 
    [[nodiscard]] Tensor propagate_relevance(const Tensor& relevance_out, const LRPRuleConfig& config) override;
 
 
    [[nodiscard]] std::optional<DeviceType> compute_device() const override { return backend_->device(); }
 
protected:
    [[nodiscard]] Tensor forward_impl(const Tensor& input) override;
 
private:
    int64_t kernel_h_;
    int64_t kernel_w_;
    DeviceBackend* backend_;
    float eps_;
    Tensor last_input_;  // (N, C, H, W)
    int64_t last_out_h_ = 0;
    int64_t last_out_w_ = 0;
    bool has_forwarded_ = false;
};
 
}  // namespace pulsatrix