Fladapt_main.cpp

/*  Copyright (C) 2006 Imperial College London and others.
    
    Please see the AUTHORS file in the main source directory for a full list
    of copyright holders.

    Prof. C Pain
    Applied Modelling and Computation Group
    Department of Earth Science and Engineering
    Imperial College London

    amcgsoftware@imperial.ac.uk
    
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation,
    version 2.1 of the License.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
    USA
*/

#include <iostream>
#include <map>
#include <stdlib.h>

#include "confdefs.h"

#ifdef HAVE_MPI
#include <mpi.h>
#endif

#include "Usage.h"
#include "c++debug.h"

using namespace std;

extern "C"{
  void fladapt(const char *, size_t, const char *, size_t);
#ifdef HAVE_PYTHON
#include "python_statec.h"
#endif
}

void Usage(){
  cerr << "Usage: fladapt INPUT OUTPUT\n"
       << "\n"
       << "Performs a single mesh adapt based on the input options file (which may be a\n"
       << "checkpoint). Outputs the resulting mesh.\n"
       << "\n"
       << "Options:\n"
       << "\n"
       << "-h\t\tDisplay this help\n"
       << "-v\t\tVerbose mode" << endl;
}

int main(int argc, char** argv){
#ifdef HAVE_MPI
  MPI_Init(&argc, &argv);
  // Undo some MPI init shenanigans
  int ierr = chdir(getenv("PWD"));
  if (ierr == -1) {
        cerr << "Unable to switch to directory " << getenv("PWD");
        abort();
  }
#endif
  PetscInit(argc, argv);
#ifdef HAVE_PYTHON
  // Initialize the Python Interpreter
  python_init_();
#endif

  // Modified version of flredecomp argument parsing
  // Get any command line arguments
  // Reset optarg so we can detect changes
  optarg = NULL;  
  char c;
  map<char, string> args;
  while((c = getopt(argc, argv, "hv")) != -1){
    if (c != '?'){
      if(optarg == NULL){
        args[c] = "true";
      }else{
        args[c] = optarg;
      }
    }else{
      if(isprint(optopt)){
        cerr << "Unknown option " << optopt << endl;
      }else{
        cerr << "Unknown option " << hex << optopt << endl;
      }
      Usage();
      exit(-1);
    }
  }

  // Help
  if(args.count('h')){
    Usage();
    exit(0);
  }
  
  // Verbosity
  int verbosity = 0;
  if(args.count('v') > 0){
    verbosity = 3;
  }
  set_global_debug_level_fc(&verbosity);
  
  // Input and output base names
  string input_basename, output_basename;
  if(argc > optind + 2){
    input_basename = argv[optind + 1];
    output_basename = argv[optind + 2];
  }else if(argc == optind + 2){
    input_basename = argv[optind];
    output_basename = argv[optind + 1];
  }else{
    Usage();
    exit(-1);
  }
      
  size_t input_basename_len = input_basename.size();
  size_t output_basename_len = output_basename.size();

  fladapt(input_basename.c_str(), input_basename_len,
          output_basename.c_str(), output_basename_len);

#ifdef HAVE_PYTHON
  // Finalize the Python Interpreter
  python_end_();
#endif
  
#ifdef HAVE_PETSC
  PetscFinalize();
#endif
  
#ifdef HAVE_MPI
  MPI_Finalize();
#endif
  return 0;
}