nabled (including derived):
  Floating point operations executed

Underlying timing routine was gettimeofday.
Per-call utr overhead est: 2.9e-07 sec.
Per-call PAPI overhead est: 1.4e-07 sec.
If overhead stats are printed, roughly half the estimated number is
embedded in the wallclock (and/or PAPI counter) stats for each timer

If a '% of' field is present, it is w.r.t. the first timer for thread 0.
If a 'e6 per sec' field is present, it is in millions of PAPI counts per sec.

A '*' in column 1 below means t