globals.cpp

Go to the documentation of this file.

// Copyright (c) 2010-2025, Lawrence Livermore National Security, LLC. Produced
// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
// LICENSE and NOTICE for details. LLNL-CODE-806117.
//
// This file is part of the MFEM library. For more information and source code
// availability visit https://mfem.org.
//
// MFEM is free software; you can redistribute it and/or modify it under the
// terms of the BSD-3 license. We welcome feedback and contributions, see file
// CONTRIBUTING.md for details.
 
#ifdef _WIN32
// Turn off CRT deprecation warnings for getenv
#define _CRT_SECURE_NO_WARNINGS
#endif
 
#include "../config/config.hpp"
#include "globals.hpp"
#include <iostream>
#include <sstream>
#include <iomanip>
#include <cstdlib>  // getenv
 
namespace mfem
{
 
OutStream out(std::cout);
OutStream err(std::cerr);
 
namespace internal
{
bool mfem_out_initialized = false;
bool mfem_err_initialized = false;
}
 
void OutStream::Init()
{
   if (this == &mfem::out)
   {
      internal::mfem_out_initialized = true;
   }
   else if (this == &mfem::err)
   {
      internal::mfem_err_initialized = true;
   }
}
 
std::string MakeParFilename(const std::string &prefix, const int myid,
                            const std::string suffix, const int width)
{
   std::stringstream fname;
   fname << prefix << std::setw(width) << std::setfill('0') << myid << suffix;
   return fname.str();
}
 
#ifdef MFEM_COUNT_FLOPS
namespace internal
{
long long flop_count;
}
#endif
 
#ifdef MFEM_USE_MPI
 
MPI_Comm MFEM_COMM_WORLD = MPI_COMM_WORLD;
 
MPI_Comm GetGlobalMPI_Comm()
{
   return MFEM_COMM_WORLD;
}
 
void SetGlobalMPI_Comm(MPI_Comm comm)
{
   MFEM_COMM_WORLD = comm;
}
 
#endif
 
const char *GetEnv(const char* name)
{
   return getenv(name);
}
 
}