Timer

class dolfin.cpp.common.Timer(*args)

Bases: object

A timer can be used for timing tasks. The basic usage is

Timer timer(“Assembling over cells”);

The timer is started at construction and timing ends when the timer is destroyed (goes out of scope). It is also possible to start and stop a timer explicitly by

timer.start(); timer.stop();

Timings are stored globally and a summary may be printed by calling

list_timings();

Overloaded versions

• Timer()

  Create timer without logging

• Timer(task)

  Create timer with logging

elapsed()

Return wall, user and system time in seconds. Wall-clock time has precision around 1 microsecond; user and system around 10 millisecond.

resume()

Resume timer. Not well-defined for logging timer

start()

Zero and start timer

stop()

Stop timer, return wall time elapsed and store timing data into logger

thisown None

The membership flag

value()

DEPRECATED: Return value of timer (or time at start if not stopped)