communicate.hpp (cd61077)

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#ifndef communicate_hpp
#define communicate_hpp


#include <memory>


#include <mpi.h>


#include "initialization.hpp"


namespace schwz {


template <typename ValueType, typename IndexType, typename MixedValueType>
class Communicate {
public:
    friend class Initialize<ValueType, IndexType>;

    struct comm_struct {
    public:
        int num_neighbors_in;

        int num_neighbors_out;

        std::shared_ptr<gko::Array<IndexType>> neighbors_in;

        std::shared_ptr<gko::Array<IndexType>> neighbors_out;

        std::vector<bool> is_local_neighbor;
        int local_num_neighbors_in;

        int local_num_neighbors_out;

        std::shared_ptr<gko::Array<IndexType>> local_neighbors_in;

        std::shared_ptr<gko::Array<IndexType>> local_neighbors_out;

        std::shared_ptr<gko::Array<IndexType *>> global_put;

        std::shared_ptr<gko::Array<IndexType *>> local_put;

        std::shared_ptr<gko::Array<IndexType *>> global_get;

        std::shared_ptr<gko::Array<IndexType *>> local_get;

        std::vector<IndexType> send;

        std::vector<IndexType> recv;

        std::shared_ptr<gko::Array<IndexType>> window_ids;

        std::shared_ptr<gko::Array<IndexType>> windows_from;

        std::shared_ptr<gko::Array<IndexType>> windows_to;

        std::shared_ptr<gko::Array<MPI_Request>> put_request;

        std::shared_ptr<gko::Array<MPI_Request>> get_request;

        std::shared_ptr<gko::matrix::Dense<ValueType>> send_buffer;

        std::shared_ptr<gko::matrix::Dense<MixedValueType>> mixedt_send_buffer;

        std::shared_ptr<gko::matrix::Dense<ValueType>> recv_buffer;

        std::shared_ptr<gko::matrix::Dense<MixedValueType>> mixedt_recv_buffer;

        std::shared_ptr<gko::Array<IndexType>> get_displacements;

        std::shared_ptr<gko::Array<IndexType>> put_displacements;

        MPI_Win window_recv_buffer;

        MPI_Win window_send_buffer;

        MPI_Win window_x;
    };
    comm_struct comm_struct;

    virtual void setup_comm_buffers() = 0;

    virtual void setup_windows(
        const Settings &settings,
        const Metadata<ValueType, IndexType> &metadata,
        std::shared_ptr<gko::matrix::Dense<ValueType>> &main_buffer) = 0;

    virtual void exchange_boundary(
        const Settings &settings,
        const Metadata<ValueType, IndexType> &metadata,
        std::shared_ptr<gko::matrix::Dense<ValueType>> &global_solution) = 0;

    void local_to_global_vector(
        const Settings &settings,
        const Metadata<ValueType, IndexType> &metadata,
        const std::shared_ptr<gko::matrix::Dense<ValueType>> &local_vector,
        std::shared_ptr<gko::matrix::Dense<ValueType>> &global_vector);

    virtual void update_boundary(
        const Settings &settings,
        const Metadata<ValueType, IndexType> &metadata,
        std::shared_ptr<gko::matrix::Dense<ValueType>> &local_solution,
        const std::shared_ptr<gko::matrix::Dense<ValueType>> &local_rhs,
        const std::shared_ptr<gko::matrix::Dense<ValueType>> &global_solution,
        const std::shared_ptr<gko::matrix::Csr<ValueType, IndexType>>
            &interface_matrix) = 0;

    void clear(Settings &settings);
};


}  // namespace schwz


#endif  // communicate.hpp