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 ;

Create timer with logging.

Parameters:task (std::string) –

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

Return type:std::tuple< double, double, double >

Resume timer. Not well-defined for logging timer.

Return type:void

Zero and start timer.

Return type:void

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

Return type:double

The membership flag