/**
  * Reads given configuration property. If not found, throws a {@link MissingParameterException}.
  *
  * @param name Name of configuration property
  */
 public static long getLong(String name) {
   return config.getLong(name);
 }
 /**
  * Reads given configuration property. If not found, returns the default value.
  *
  * @param name Name of configuration property
  * @param def default value
  */
 public static long getLong(String name, long def) {
   if (name == Network.PAR_SIZE || name == Network.PAR_MAXSIZE)
     return config.getLong(name, def) / Communicator.getSize();
   else return config.getLong(name, def);
 }