"  -group_index         int    group number to watch\n"+ "  -event_mask          int    what fields to focus on?  Only look at a field if its bit is on.  511=all fields\n"+ "  -run                 int    application run. Constraint: -application must be specified!\n"+ "  -tid                 int    thread id to focus on\n"+
"  -group_index         int    group number to watch (POWER4 architecture)\n"+ "  -event_mask          int    fields to focus on?  Only look at a field if its bit is on.  511=all fields\n"+ "  -run                 int    run to focus on. Constraint: -application must be specified!\n"+ "  -tid                 int    thread id to focus on. Constraint only one \n"+
  public void usage() {    System.out.println("\nreadTraceFile usage\n"+		       " Boolean options: option\n"+		       "  Option               description\n"+		       "  -aggregate           aggregate hpm counter values\n"+		       "  -aggregate_by_thread aggregate hpm counter values where threads counters broken out by VP ID\n"+		       "  -events              tell hpm events collected\n"+		       "  -generate_statistics generate average, min, max, var, and std dev.\n"+		       "                       thread specified in -tid and events specified in -event_mask\n"+		       "  -local               apply options to input trace files individually\n"+		       "  -no_yields           consider only a thread switch that times out\n"+		       "  -structure           of user-defined trace records\n"+		       "  -threads             tell what threads were active\n"+		       "  -trace               print trace.  Project on -tid and -event_mask\n"+		       "\n"+		       " Value options: option value\n"+		       "  Option               Value  description\n"+		       "  -application         String name of application\n"+		       "  -debug               int    debug what is going on\n"+		       "  -group_index         int    group number to watch\n"+		       "  -event_mask          int    what fields to focus on?  Only look at a field if its bit is on.  511=all fields\n"+		       "  -run                 int    application run. Constraint: -application must be specified!\n"+		       "  -tid                 int    thread id to focus on\n"+		       "  -verbose             int    verbose about what is going on\n"+		       "\n"+		       " Value options: option\n"+		       "  trace_filename       name of trace file.  If more than one trace file name is\n"+                       "                       specified, combine all the records.\n"+		       "\n");    System.exit(-1);  }