/usr/include/trilinos/Epetra_Time.h is in libtrilinos-epetra-dev 12.10.1-3.
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// Epetra: Linear Algebra Services Package
// Copyright 2011 Sandia Corporation
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*/
#ifndef EPETRA_TIME_H
#define EPETRA_TIME_H
//! 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.
*/
#include "Epetra_ConfigDefs.h"
#include "Epetra_Object.h"
#include "Epetra_Comm.h"
#ifdef EPETRA_MPI
#include "mpi.h"
#else
#if ICL || defined(_WIN32)
#include <time.h>
#else
#include <sys/time.h>
#ifndef MINGW
#include <sys/resource.h>
#endif
#endif
#endif
class EPETRA_LIB_DLL_EXPORT Epetra_Time: public Epetra_Object {
public:
//! 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(const Epetra_Comm & Comm);
//! Epetra_Time Copy Constructor.
/*! Makes an exact copy of an existing Epetra_Time instance.
*/
Epetra_Time(const Epetra_Time& Time);
//! 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.
*/
double WallTime(void) const;
//! 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.
*/
void ResetStartTime(void);
//! 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.
*/
double ElapsedTime(void) const;
//! Epetra_Time Destructor.
/*! Completely deletes a Epetra_Time object.
*/
virtual ~Epetra_Time(void);
Epetra_Time& operator=(const Epetra_Time& src)
{
StartTime_ = src.StartTime_;
Comm_ = src.Comm_;
return( *this );
}
private:
double StartTime_;
const Epetra_Comm * Comm_;
};
#endif /* EPETRA_TIME_H */
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