Epetra_Time Class Reference

Epetra_Time: The Epetra Timing Class. More...

#include <Epetra_Time.h>

Inheritance diagram for Epetra_Time:

[legend]Collaboration diagram for Epetra_Time:

[legend]List of all members.

Public Member Functions
	Epetra_Time (const Epetra_Comm &Comm)
	Epetra_Time Constructor.
	Epetra_Time (const Epetra_Time &Time)
	Epetra_Time Copy Constructor.
double	WallTime (void) const
	Epetra_Time wall-clock time function.
void	ResetStartTime (void)
	Epetra_Time function to reset the start time for a timer object.
double	ElapsedTime (void) const
	Epetra_Time elapsed time function.
virtual	~Epetra_Time (void)
	Epetra_Time Destructor.
Epetra_Time &	operator= (const Epetra_Time &src)

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Detailed Description

Epetra_Time: The Epetra Timing Class.

The Epetra_Time class is a wrapper that encapsulates the general information needed getting timing information. Currently it return the elapsed time for each calling processor.. A Epetra_Comm object is required for building all Epetra_Time objects.

Epetra_Time support both serial execution and (via MPI) parallel distributed memory execution. It is meant to insulate the user from the specifics of timing across a variety of platforms.

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Constructor & Destructor Documentation

Epetra_Time::Epetra_Time

(

const Epetra_Comm &

Comm

)

Epetra_Time Constructor.

Creates a Epetra_Time instance. This instance can be queried for elapsed time on the calling processor. StartTime is also set for use with the ElapsedTime function.

Epetra_Time::Epetra_Time

(

const Epetra_Time &

Time

)

Epetra_Time Copy Constructor.

Makes an exact copy of an existing Epetra_Time instance.

virtual Epetra_Time::~Epetra_Time

(

void

)

[virtual]

Epetra_Time Destructor.

Completely deletes a Epetra_Time object.

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Member Function Documentation

double Epetra_Time::ElapsedTime

(

void

)

const

Epetra_Time elapsed time function.

Returns the elapsed time in seconds since the timer object was constructed, or since the ResetStartTime function was called. A code section can be timed by putting it between the Epetra_Time constructor and a call to ElapsedTime, or between a call to ResetStartTime and ElapsedTime.

void Epetra_Time::ResetStartTime

(

void

)

Epetra_Time function to reset the start time for a timer object.

Resets the start time for the timer object to the current time A code section can be timed by putting it between a call to ResetStartTime and ElapsedTime.

double Epetra_Time::WallTime

(

void

)

const

Epetra_Time wall-clock time function.

Returns the wall-clock time in seconds. A code section can be timed by putting it between two calls to WallTime and taking the difference of the times.

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The documentation for this class was generated from the following file:

• Epetra_Time.h

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