Gabriele Cosmo
159 lines
4.9 KiB
C++
159 lines
4.9 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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//
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// ----------------------------------------------------------------------
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// class G4Timer
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//
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// Implementation
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// 29.04.97 G.Cosmo Added timings for Windows systems
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#include "G4Timer.hh"
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#include "G4ios.hh"
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#include <iomanip>
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// Global error function
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#include "G4ExceptionSeverity.hh"
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void G4Exception(const char* originOfException,
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const char* exceptionCode,
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G4ExceptionSeverity severity,
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const char* comments);
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#if defined(IRIX6_2)
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# if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE_EXTENDED==1)
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# define __vfork vfork
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# endif
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#endif
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#ifdef WIN32
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# include <sys/types.h>
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# include <windows.h>
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// extract milliseconds time unit
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G4int sysconf(G4int a)
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{
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if( a == _SC_CLK_TCK ) return 1000;
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else return 0;
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}
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static clock_t filetime2msec( FILETIME* t )
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{
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return (clock_t)((((G4float)t->dwHighDateTime)*429496.7296)+
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(((G4float)t->dwLowDateTime)*.0001) );
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}
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clock_t times(struct tms * t)
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{
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FILETIME ct = {0,0}, et = {0,0}, st = {0,0}, ut = {0,0}, rt = {0,0};
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SYSTEMTIME realtime;
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GetSystemTime( &realtime );
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SystemTimeToFileTime( &realtime, &rt ); // get real time in 10^-9 sec
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if( t != 0 )
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{
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GetProcessTimes( GetCurrentProcess(), &ct, &et, &st, &ut);
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// get process time in 10^-9 sec
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t->tms_utime = t->tms_cutime = filetime2msec(&ut);
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t->tms_stime = t->tms_cstime = filetime2msec(&st);
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}
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return filetime2msec(&rt);
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}
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#endif /* WIN32 */
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// Print timer status on std::ostream
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//
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std::ostream& operator << (std::ostream& os, const G4Timer& t)
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{
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// so fixed doesn't propagate
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std::stringstream ss;
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ss << std::fixed;
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if (t.IsValid())
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{
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ss << "User=" << t.GetUserElapsed()
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<< "s Real=" << t.GetRealElapsed()
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<< "s Sys=" << t.GetSystemElapsed() << "s";
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#ifdef G4MULTITHREADED
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// avoid possible FPE error
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if(t.GetRealElapsed() > 1.0e-6)
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{
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G4double cpu_util = (t.GetUserElapsed()+t.GetSystemElapsed()) /
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t.GetRealElapsed() * 100.0;
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ss << std::setprecision(1);
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ss << " [Cpu=" << std::setprecision(1) << cpu_util << "%]";
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}
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#endif
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}
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else
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{
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ss << "User=****s Real=****s Sys=****s";
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}
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os << ss.str();
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return os;
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}
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G4Timer::G4Timer()
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: fValidTimes(false)
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{
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}
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G4double G4Timer::GetRealElapsed() const
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{
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if (!fValidTimes)
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{
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G4Exception("G4Timer::GetRealElapsed()", "InvalidCondition",
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FatalException, "Timer not stopped or times not recorded!");
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}
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std::chrono::duration<G4double> diff=fEndRealTime-fStartRealTime;
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return diff.count();
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}
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G4double G4Timer::GetSystemElapsed() const
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{
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if (!fValidTimes)
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{
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G4Exception("G4Timer::GetSystemElapsed()", "InvalidCondition",
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FatalException, "Timer not stopped or times not recorded!");
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}
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G4double diff=fEndTimes.tms_stime-fStartTimes.tms_stime;
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return diff/sysconf(_SC_CLK_TCK);
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}
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G4double G4Timer::GetUserElapsed() const
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{
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if (!fValidTimes)
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{
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G4Exception("G4Timer::GetUserElapsed()", "InvalidCondition",
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FatalException, "Timer not stopped or times not recorded");
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}
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G4double diff=fEndTimes.tms_utime-fStartTimes.tms_utime;
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return diff/sysconf(_SC_CLK_TCK);
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}
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