LibMeshInit Class Reference

#include <libmesh.h>

List of all members.

Public Member Functions
	LibMeshInit (int &argc, char **&argv, MPI_Comm COMM_WORLD_IN=MPI_COMM_WORLD)
	LibMeshInit (int &argc, char **&argv)
	~LibMeshInit ()

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Detailed Description

The LibMeshInit class, when constructed, initializes the dependent libraries (e.g. MPI or PETSC) and does the command line parsing needed by libMesh. The LibMeshInit destructor closes those libraries properly.

For most users, a single LibMeshInit object should be created at the start of your main() function. This object replaces the previous libMesh::init()/libMeshclose() methods, which are now deprecated.

Definition at line 57 of file libmesh.h.

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Constructor & Destructor Documentation

LibMeshInit::LibMeshInit	(	int &	argc,
		char **&	argv,
		MPI_Comm	COMM_WORLD_IN = MPI_COMM_WORLD
	)

Initialize the library for use, with the command line options provided. This will e.g. call PetscInitialize if PETSC is available. You must create a LibMeshInit object before using any of the library functionality. This method may take an optional parameter to use a user-specified MPI communicator.

Definition at line 382 of file libmesh.C.

References libMesh::_init(), EXTERN_C_FOR_PETSC_END::_ofstream, EXTERN_C_FOR_PETSC_END::cerr_buf(), EXTERN_C_FOR_PETSC_END::cout_buf(), libMesh::on_command_line(), and libMesh::processor_id().

{
  libMesh::_init(argc, argv, COMM_WORLD_IN);

  // Honor the --redirect-stdout command-line option.
  // When this is specified each processor sends
  // std::cout/std::cerr messages to
  // stdout.processor.####
  if (libMesh::on_command_line ("--redirect-stdout"))
    {
      char filechar[80];
      sprintf (filechar, "stdout.processor.%04d",
               libMesh::processor_id());
      _ofstream.reset (new std::ofstream (filechar));
      // Redirect, saving the original streambufs!
      cout_buf = std::cout.rdbuf (_ofstream->rdbuf());
      cerr_buf = std::cerr.rdbuf (_ofstream->rdbuf());
    }
}

LibMeshInit::LibMeshInit	(	int &	argc,
		char **&	argv
	)

Definition at line 377 of file libmesh.C.

References libMesh::_init().

{
  libMesh::_init(argc, argv);
}

LibMeshInit::~LibMeshInit

(

)

Definition at line 404 of file libmesh.C.

{
  libMesh::_close();
}

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The documentation for this class was generated from the following files:

• libmesh.h
• libmesh.C