mpi_logger.hpp

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#pragma once
 
#include <cstdlib>
#include <iostream>
 
class MPILogger {
 private:
  int mpi_rank;
  bool quiet_mode;
 
 public:
  MPILogger(int rank, bool quiet = false) : mpi_rank(rank), quiet_mode(quiet) {}
 
  void log(const std::string& message) const {
    if (!quiet_mode && mpi_rank == 0) {
      std::cout << message << std::endl;
    }
  }
 
  void error(const std::string& message) const {
    if (mpi_rank == 0) {
      std::cerr << "ERROR: " << message << std::endl;
    }
  }
 
  [[noreturn]]
  void exitWithError(const std::string& message) const {
    error(message);
    exit(1);
  }
};