record.hpp

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#ifndef GKO_CORE_LOG_RECORD_HPP_
#define GKO_CORE_LOG_RECORD_HPP_


#include <ginkgo/core/log/logger.hpp>


#include <deque>
#include <memory>


#include <ginkgo/core/matrix/dense.hpp>
#include <ginkgo/core/stop/criterion.hpp>


namespace gko {

namespace log {


struct iteration_complete_data {
    std::unique_ptr<const LinOp> solver;
    const size_type num_iterations;
    std::unique_ptr<const LinOp> residual;
    std::unique_ptr<const LinOp> solution;
    std::unique_ptr<const LinOp> residual_norm;

    iteration_complete_data(const LinOp *solver, const size_type num_iterations,
                            const LinOp *residual = nullptr,
                            const LinOp *solution = nullptr,
                            const LinOp *residual_norm = nullptr)
        : solver{nullptr},
          num_iterations{num_iterations},
          residual{nullptr},
          solution{nullptr},
          residual_norm{nullptr}
    {
        this->solver = solver->clone();
        if (residual != nullptr) {
            this->residual = residual->clone();
        }
        if (solution != nullptr) {
            this->solution = solution->clone();
        }
        if (residual_norm != nullptr) {
            this->residual_norm = residual_norm->clone();
        }
    }
};


struct executor_data {
    const Executor *exec;
    const size_type num_bytes;
    const uintptr location;
};


struct operation_data {
    const Executor *exec;
    const Operation *operation;
};


struct polymorphic_object_data {
    const Executor *exec;
    std::unique_ptr<const PolymorphicObject> input;
    std::unique_ptr<const PolymorphicObject> output;  // optional

    polymorphic_object_data(const Executor *exec,
                            const PolymorphicObject *input,
                            const PolymorphicObject *output = nullptr)
        : exec{exec}
    {
        this->input = input->clone();
        if (output != nullptr) {
            this->output = output->clone();
        }
    }
};


struct linop_data {
    std::unique_ptr<const LinOp> A;
    std::unique_ptr<const LinOp> alpha;
    std::unique_ptr<const LinOp> b;
    std::unique_ptr<const LinOp> beta;
    std::unique_ptr<const LinOp> x;

    linop_data(const LinOp *A, const LinOp *alpha, const LinOp *b,
               const LinOp *beta, const LinOp *x)
    {
        this->A = A->clone();
        if (alpha != nullptr) {
            this->alpha = alpha->clone();
        }
        this->b = b->clone();
        if (beta != nullptr) {
            this->beta = beta->clone();
        }
        this->x = x->clone();
    }
};


struct linop_factory_data {
    const LinOpFactory *factory;
    std::unique_ptr<const LinOp> input;
    std::unique_ptr<const LinOp> output;

    linop_factory_data(const LinOpFactory *factory, const LinOp *input,
                       const LinOp *output)
        : factory{factory}
    {
        this->input = input->clone();
        if (output != nullptr) {
            this->output = output->clone();
        }
    }
};


struct criterion_data {
    const stop::Criterion *criterion;
    const size_type num_iterations;
    std::unique_ptr<const LinOp> residual;
    std::unique_ptr<const LinOp> residual_norm;
    std::unique_ptr<const LinOp> solution;
    const uint8 stopping_id;
    const bool set_finalized;
    const Array<stopping_status> *status;
    const bool oneChanged;
    const bool converged;

    criterion_data(const stop::Criterion *criterion,
                   const size_type &num_iterations, const LinOp *residual,
                   const LinOp *residual_norm, const LinOp *solution,
                   const uint8 stopping_id, const bool set_finalized,
                   const Array<stopping_status> *status = nullptr,
                   const bool oneChanged = false, const bool converged = false)
        : criterion{criterion},
          num_iterations{num_iterations},
          residual{nullptr},
          residual_norm{nullptr},
          solution{nullptr},
          stopping_id{stopping_id},
          set_finalized{set_finalized},
          status{status},
          oneChanged{oneChanged},
          converged{converged}
    {
        if (residual != nullptr) {
            this->residual = std::unique_ptr<const LinOp>(residual->clone());
        }
        if (residual_norm != nullptr) {
            this->residual_norm =
                std::unique_ptr<const LinOp>(residual_norm->clone());
        }
        if (solution != nullptr) {
            this->solution = std::unique_ptr<const LinOp>(solution->clone());
        }
    }
};


class Record : public Logger {
public:
    struct logged_data {
        std::deque<std::unique_ptr<executor_data>> allocation_started;
        std::deque<std::unique_ptr<executor_data>> allocation_completed;
        std::deque<std::unique_ptr<executor_data>> free_started;
        std::deque<std::unique_ptr<executor_data>> free_completed;
        std::deque<std::unique_ptr<std::tuple<executor_data, executor_data>>>
            copy_started;
        std::deque<std::unique_ptr<std::tuple<executor_data, executor_data>>>
            copy_completed;

        std::deque<std::unique_ptr<operation_data>> operation_launched;
        std::deque<std::unique_ptr<operation_data>> operation_completed;

        std::deque<std::unique_ptr<polymorphic_object_data>>
            polymorphic_object_create_started;
        std::deque<std::unique_ptr<polymorphic_object_data>>
            polymorphic_object_create_completed;
        std::deque<std::unique_ptr<polymorphic_object_data>>
            polymorphic_object_copy_started;
        std::deque<std::unique_ptr<polymorphic_object_data>>
            polymorphic_object_copy_completed;
        std::deque<std::unique_ptr<polymorphic_object_data>>
            polymorphic_object_deleted;

        std::deque<std::unique_ptr<linop_data>> linop_apply_started;
        std::deque<std::unique_ptr<linop_data>> linop_apply_completed;
        std::deque<std::unique_ptr<linop_data>> linop_advanced_apply_started;
        std::deque<std::unique_ptr<linop_data>> linop_advanced_apply_completed;
        std::deque<std::unique_ptr<linop_factory_data>>
            linop_factory_generate_started;
        std::deque<std::unique_ptr<linop_factory_data>>
            linop_factory_generate_completed;

        std::deque<std::unique_ptr<criterion_data>> criterion_check_started;
        std::deque<std::unique_ptr<criterion_data>> criterion_check_completed;

        std::deque<std::unique_ptr<iteration_complete_data>>
            iteration_completed;
    };

    /* Executor events */
    void on_allocation_started(const Executor *exec,
                               const size_type &num_bytes) const override;

    void on_allocation_completed(const Executor *exec,
                                 const size_type &num_bytes,
                                 const uintptr &location) const override;

    void on_free_started(const Executor *exec,
                         const uintptr &location) const override;

    void on_free_completed(const Executor *exec,
                           const uintptr &location) const override;

    void on_copy_started(const Executor *from, const Executor *to,
                         const uintptr &location_from,
                         const uintptr &location_to,
                         const size_type &num_bytes) const override;

    void on_copy_completed(const Executor *from, const Executor *to,
                           const uintptr &location_from,
                           const uintptr &location_to,
                           const size_type &num_bytes) const override;

    /* Operation events */
    void on_operation_launched(const Executor *exec,
                               const Operation *operation) const override;

    void on_operation_completed(const Executor *exec,
                                const Operation *operation) const override;

    /* PolymorphicObject events */
    void on_polymorphic_object_create_started(
        const Executor *exec, const PolymorphicObject *po) const override;

    void on_polymorphic_object_create_completed(
        const Executor *exec, const PolymorphicObject *input,
        const PolymorphicObject *output) const override;

    void on_polymorphic_object_copy_started(
        const Executor *exec, const PolymorphicObject *from,
        const PolymorphicObject *to) const override;

    void on_polymorphic_object_copy_completed(
        const Executor *exec, const PolymorphicObject *from,
        const PolymorphicObject *to) const override;

    void on_polymorphic_object_deleted(
        const Executor *exec, const PolymorphicObject *po) const override;

    /* LinOp events */
    void on_linop_apply_started(const LinOp *A, const LinOp *b,
                                const LinOp *x) const override;

    void on_linop_apply_completed(const LinOp *A, const LinOp *b,
                                  const LinOp *x) const override;

    void on_linop_advanced_apply_started(const LinOp *A, const LinOp *alpha,
                                         const LinOp *b, const LinOp *beta,
                                         const LinOp *x) const override;

    void on_linop_advanced_apply_completed(const LinOp *A, const LinOp *alpha,
                                           const LinOp *b, const LinOp *beta,
                                           const LinOp *x) const override;

    /* LinOpFactory events */
    void on_linop_factory_generate_started(const LinOpFactory *factory,
                                           const LinOp *input) const override;

    void on_linop_factory_generate_completed(
        const LinOpFactory *factory, const LinOp *input,
        const LinOp *output) const override;

    /* Criterion events */
    void on_criterion_check_started(const stop::Criterion *criterion,
                                    const size_type &num_iterations,
                                    const LinOp *residual,
                                    const LinOp *residual_norm,
                                    const LinOp *solution,
                                    const uint8 &stopping_id,
                                    const bool &set_finalized) const override;

    void on_criterion_check_completed(
        const stop::Criterion *criterion, const size_type &num_iterations,
        const LinOp *residual, const LinOp *residual_norm,
        const LinOp *solution, const uint8 &stopping_id,
        const bool &set_finalized, const Array<stopping_status> *status,
        const bool &one_changed, const bool &all_converged) const override;

    /* Internal solver events */
    void on_iteration_complete(
        const LinOp *solver, const size_type &num_iterations,
        const LinOp *residual, const LinOp *solution = nullptr,
        const LinOp *residual_norm = nullptr) const override;


    static std::unique_ptr<Record> create(
        std::shared_ptr<const Executor> exec,
        const mask_type &enabled_events = Logger::all_events_mask,
        size_type max_storage = 1)
    {
        return std::unique_ptr<Record>(
            new Record(exec, enabled_events, max_storage));
    }

    const logged_data &get() const noexcept { return data_; }

    logged_data &get() noexcept { return data_; }

protected:
    explicit Record(std::shared_ptr<const gko::Executor> exec,
                    const mask_type &enabled_events = Logger::all_events_mask,
                    size_type max_storage = 0)
        : Logger(exec, enabled_events), max_storage_{max_storage}
    {}

    template <typename deque_type>
    void append_deque(std::deque<deque_type> &deque, deque_type object) const
    {
        if (this->max_storage_ && deque.size() == this->max_storage_) {
            deque.pop_front();
        }
        deque.push_back(std::move(object));
    }

private:
    mutable logged_data data_{};
    size_type max_storage_{};
};


}  // namespace log
}  // namespace gko


#endif  // GKO_CORE_LOG_RECORD_HPP_