diff options
Diffstat (limited to 'Carpet/CarpetLib')
| -rw-r--r-- | Carpet/CarpetLib/src/timestat.cc | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/Carpet/CarpetLib/src/timestat.cc b/Carpet/CarpetLib/src/timestat.cc index 5e8b0b599..b126471be 100644 --- a/Carpet/CarpetLib/src/timestat.cc +++ b/Carpet/CarpetLib/src/timestat.cc @@ -63,10 +63,18 @@ void timestat::stop (double const b) ostream& operator<< (ostream& os, const timestat& wt) { - double const avg = wt.wtime / wt.count; - double const stddev = sqrt (max (0.0, wt.wtime2 / wt.count - pow (avg, 2))); - double const bavg = wt.bytes / wt.count; - double const bstddev = sqrt (max (0.0, wt.bytes2 / wt.count - pow (bavg, 2))); + double avg, stddev, bavg, bstddev; + if (wt.count == 0.0) { + avg = 0.0; + stddev = 0.0; + bavg = 0.0; + bstddev = 0.0; + } else { + avg = wt.wtime / wt.count; + stddev = sqrt (max (0.0, wt.wtime2 / wt.count - pow (avg, 2))); + bavg = wt.bytes / wt.count; + bstddev = sqrt (max (0.0, wt.bytes2 / wt.count - pow (bavg, 2))); + } os << "timestat[seconds]:" << " cnt: " << wt.count << " time: sum: " << wt.wtime |