dial::JobId submit(string appname="atlasreco",
                   string dstname ="rdotest1") {

  string tskxml = "task_" + appname + ".xml";

  // Invalidate the job ID.
  jid = JobId();

  // Select dataset from DSC and extract from DDB.
  // For more information and links to query and browse catalogs, see
  //   http://www.usatlas.bnl.gov/~dladams/dataset/atlas_catalogs
  DatasetId did = dsc.id(dstname);
  if ( ! did.is_valid() ) {
    cout << "Unable to find dataset " << dstname << " in DSC" << endl;
    return jid;
  }
  const dset::Dataset* pdst = dr.extract(did);
  if ( pdst == 0 ) {
    cout << "Unable to find dataset " << did.to_string() << " in DDB" << endl;
    return jid;
  }
  const dset::Dataset& dst = *pdst;
  if ( ! dst.is_valid() ) {
    cout << "Invalid dataset" << endl;
    return jid;
  }

  // Select application.
  dial::Application app(appname, "0.94");

  // Define names for task files.
  dial::Task::TextList ttnames;
  if ( appname == "atlasreco" ) {
    //cout << "Application aodhisto is not yet supported " << endl;
    //ttnames.push_back(Text("AnalysisSkeleton_jobOptions.py"));
  } else {
    cout << "Unknown application: " << appname << endl;
    return jid;
  }

  // If task XML does not exist, create it from the task files.
  if ( ! FileStatus(tskxml).exists() ) {
    cout << "*** Creating task" << endl;
    dial::Task newtsk(ttnames);
    XmlElement* pxnewtsk = newtsk.xml();
    if ( pxnewtsk == 0 ) {
      cout << "Unable to create new task XML" << endl;
      cout << newtsk << endl;
      return jid;
    }
    parser.write(tskxml, *pxnewtsk);
  }
  if ( ! FileStatus(tskxml).exists() ) {
    cout << "Error creating task" << endl;
  }
  const XmlElement* pxtsk = parser.parse(tskxml);
  dial::Task tsk(*pxtsk);
  if ( ! tsk.is_valid() ) {
    cout << "Task is invalid" << endl;
    return jid;
  }

  // Install task.
  // Use XML description if it is present. If not, create a
  // new task from the code and result.
  bool tstat = msch.has_task(app, tsk);
  if ( tstat ) {
    cout << "*** Task is already installed" << endl;
  } else {
    cout << "*** Installing task" << endl;
    cout << "  This should be quick..." << endl;
    tstat = msch.add_task(app, tsk);
    if ( ! tstat ) {
      cout << "Unable to install task " << tsk.id() << endl;
      if ( msch.xml_name() == string("MasterScheduler") ) {
        const dial::MasterScheduler* pmsch = 
          dynamic_cast<const dial::MasterScheduler*>(&msch);
        if ( pmsch != 0 ) {
          cout << pmsch->slave().log() << endl;
        }
      }
      return jid;
    }
    cout << "  Task installation complete" << endl;
  }

  // Submit job.
  cout << "*** Submitting job" << endl;
  jid = msch.submit(app, tsk, dst);
  dial::Job& job = msch.job(jid);

  // Check job status.
  cout << "*** Submitted job status:" << endl;
  if ( jid.is_valid() ) {
    cout << job << endl;
  } else {
    cout << "Job submission failed" << endl;
    cout << msch.log() << endl;
  }

  return jid;
}