diff options
| author | Erik Schnetter <schnetter@cct.lsu.edu> | 2007-02-03 21:11:00 +0000 |
|---|---|---|
| committer | Erik Schnetter <schnetter@cct.lsu.edu> | 2007-02-03 21:11:00 +0000 |
| commit | 058424603e6ec5eb7079a3870db541ac052300ab (patch) | |
| tree | 195ba995704f5ed2ee40438c90b4da1902ac724d /Carpet/CarpetLib/param.ccl | |
| parent | c4c18e2238917e5333d0fdb65ed270c4d4275ab1 (diff) | |
CarpetLib: Improve timers
Implement a second timer based on Intel's rdtsc instruction, which is
much faster and much more accurate than MPI_Wtime.
Place the timer classes into the CarpetLib namespace.
Create a TimerSet class. Make the Timer class automatically register
all timers with a singleton object, removing all global variables.
darcs-hash:20070203211128-dae7b-42765e79446eda6a2337ba22cd390869055c555a.gz
Diffstat (limited to 'Carpet/CarpetLib/param.ccl')
| -rw-r--r-- | Carpet/CarpetLib/param.ccl | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/Carpet/CarpetLib/param.ccl b/Carpet/CarpetLib/param.ccl index a3000fe74..a81275309 100644 --- a/Carpet/CarpetLib/param.ccl +++ b/Carpet/CarpetLib/param.ccl @@ -54,7 +54,18 @@ STRING timestat_file "File name in which timestat output is collected (because s { "^$" :: "empty filename: no file output" "^.+$" :: "file name" -} "carpetlib-time-statistics" +} "carpetlib-timing-statistics" + +KEYWORD timestat_timer "Timer for timing statistics" STEERABLE=recover +{ + "MPI_Wtime" :: "MPI_Wtime (expensive; uses system call)" + "rdtsc" :: "Intel rdtsc instruction (exists only on Intel CPUs)" + "none" :: "don't measure time" +} "MPI_Wtime" + +BOOLEAN timestat_disable "Disable timing statistics" STEERABLE=always +{ +} "no" |