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#pragma once
#include <vector>
#include "gsl/multi_span"
#include <boost/container/static_vector.hpp>
#include "Configuration.hpp"
#include "MpiEnvironment.hpp"
#include "Util.hpp"
class Communicator {
constexpr static std::size_t NoNeighbors{8};
CommunicationMode _commMode;
std::vector<int> _neighbors;
std::vector<int> _sizes;
std::vector<MPI_Datatype> _sendTypes;
const std::vector<MPI_Datatype>& _recvTypes{_sendTypes};
std::vector<MPI_Aint> _sendDisplacements;
std::vector<MPI_Aint> _recvDisplacements;
MPI_Comm _commDistGraph{MPI_COMM_NULL};
MPI_Datatype _haloRowType;
MPI_Datatype _haloColumnType;
MPI_Datatype _haloCornerType{MPI_CHAR};
void ReportInvalidCommunicationModeError();
Communicator(const MpiEnvironment& env, CommunicationMode commMode,
const Size& gridSize, const Size& tileSize);
void swap(Communicator& first, Communicator& second);
Communicator(Communicator&) = delete;
Communicator& operator=(Communicator&) = delete;
Communicator(Communicator&& other) noexcept;
Communicator& operator=(Communicator&& other) noexcept;
void Communicate(gsl::multi_span<State, -1, -1>& model);
boost::container::static_vector<MPI_Request, NoNeighbors * 2> _reqs;
MpiRequest(
boost::container::static_vector<MPI_Request, NoNeighbors * 2> reqs);
MpiRequest AsyncCommunicate(gsl::multi_span<State, -1, -1>& model);