caiyu/openEMS
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simplified time calculation

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This commit is contained in:
Sebastian Held 2010-03-27 15:54:44 +01:00
parent 54344b1b86
commit c9cc0cf2dc
1 changed files with 11 additions and 8 deletions
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19
openems.cpp
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@ -33,8 +33,8 @@
double CalcDiffTime(timeval t1, timeval t2) double CalcDiffTime(timeval t1, timeval t2)
{ {
double s_diff = difftime(t1.tv_sec,t2.tv_sec); double s_diff = t1.tv_sec - t2.tv_sec;
s_diff += ((double)t1.tv_usec-(double)t2.tv_usec)*1e-6; s_diff += (t1.tv_usec-t2.tv_usec)*1e-6;
return s_diff; return s_diff;
} }
@ -315,17 +315,20 @@ void openEMS::RunFDTD()
{ {
cout << "Running FDTD engine... this may take a while... grab a coup of coffee?!?" << endl; cout << "Running FDTD engine... this may take a while... grab a coup of coffee?!?" << endl;
timeval currTime;
gettimeofday(&currTime,NULL);
timeval startTime = currTime;
timeval prevTime= currTime;
ProcessFields ProcField(FDTD_Op,FDTD_Eng); ProcessFields ProcField(FDTD_Op,FDTD_Eng);
double maxE=0,currE=0; double maxE=0,currE=0;
double change=1; double change=1;
int prevTS=0,currTS=0; int prevTS=0,currTS=0;
double speed = (double)FDTD_Op->GetNumberCells()/1e6; double speed = FDTD_Op->GetNumberCells()/1e6;
double t_diff; double t_diff;
timeval currTime;
gettimeofday(&currTime,NULL);
timeval startTime = currTime;
timeval prevTime= currTime;
//*************** simulate ************// //*************** simulate ************//
int step=PA->Process(); int step=PA->Process();
if ((step<0) || (step>NrTS)) step=NrTS; if ((step<0) || (step>NrTS)) step=NrTS;
while ((FDTD_Eng->GetNumberOfTimesteps()<NrTS) && (change>endCrit)) while ((FDTD_Eng->GetNumberOfTimesteps()<NrTS) && (change>endCrit))
@ -345,7 +348,7 @@ void openEMS::RunFDTD()
if (currE>maxE) if (currE>maxE)
maxE=currE; maxE=currE;
cout << "[@" << setw(8) << (int)CalcDiffTime(currTime,startTime) << "s] Timestep: " << setw(12) << currTS << " (" << setw(6) << setprecision(2) << std::fixed << (double)currTS/(double)NrTS*100.0 << "%)" ; cout << "[@" << setw(8) << (int)CalcDiffTime(currTime,startTime) << "s] Timestep: " << setw(12) << currTS << " (" << setw(6) << setprecision(2) << std::fixed << (double)currTS/(double)NrTS*100.0 << "%)" ;
cout << " with currently " << setw(6) << setprecision(1) << std::fixed << speed*(double)(currTS-prevTS)/t_diff << " MCells/s" ; cout << " with currently " << setw(6) << setprecision(1) << std::fixed << speed*(currTS-prevTS)/t_diff << " MCells/s" ;
if (maxE) if (maxE)
change = currE/maxE; change = currE/maxE;
cout << " --- Energy: ~" << setw(6) << setprecision(2) << std::scientific << currE << " (decrement: " << setw(6) << setprecision(2) << std::fixed << fabs(10.0*log10(change)) << "dB)" << endl; cout << " --- Energy: ~" << setw(6) << setprecision(2) << std::scientific << currE << " (decrement: " << setw(6) << setprecision(2) << std::fixed << fabs(10.0*log10(change)) << "dB)" << endl;