portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-06-13 04:37:05 +01:00
Code Releases Activity

Adding tests for WilsonFlow classes

Browse Source
This commit is contained in:
Guido Cossu
2017-03-21 16:11:35 +09:00
parent fd56b3ff38
commit 120fb59978
10 changed files with 142 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
lib/qcd/smearing/WilsonFlow.h
View File

@ -38,9 +38,9 @@ class WilsonFlow: public Smear<Gimpl>{
unsigned int Nstep;
RealD epsilon;
WilsonGaugeAction<Gimpl> &SG;
mutable WilsonGaugeAction<Gimpl> SG;
void evolve_step(typename Gimpl::GaugeField&);
void evolve_step(typename Gimpl::GaugeField&) const;
RealD tau(unsigned int t)const {return epsilon*(t+1.0); }
@ -50,7 +50,7 @@ class WilsonFlow: public Smear<Gimpl>{
explicit WilsonFlow(unsigned int Nstep, RealD epsilon):
Nstep(Nstep),
epsilon(epsilon),
SG(3.0) {
SG(WilsonGaugeAction<Gimpl>(3.0)) {
// WilsonGaugeAction with beta 3.0
assert(epsilon > 0.0);
LogMessage();
@ -58,24 +58,29 @@ class WilsonFlow: public Smear<Gimpl>{
void LogMessage() {
std::cout << GridLogMessage
<< "[WilsonFlow] Nstep : " << Nstep
<< "[WilsonFlow] epsilon : " << epsilon
<< "[WilsonFlow] full trajectory : " << Nstep * epsilon
<< std::endl;
<< "[WilsonFlow] Nstep : " << Nstep << std::endl;
std::cout << GridLogMessage
<< "[WilsonFlow] epsilon : " << epsilon << std::endl;
std::cout << GridLogMessage
<< "[WilsonFlow] full trajectory : " << Nstep * epsilon << std::endl;
}
virtual void smear(GaugeField&, const GaugeField&) const;
virtual void derivative(GaugeField&, const GaugeField&, const GaugeField&) const {
assert(0);
// undefined for WilsonFlow
assert(0);
// undefined for WilsonFlow
}
RealD energyDensityPlaquette(unsigned int step, const GaugeField& U) const;
};
////////////////////////////////////////////////////////////////////////////////
// Implementations
////////////////////////////////////////////////////////////////////////////////
template <class Gimpl>
void WilsonFlow<Gimpl>::evolve_step(typename Gimpl::GaugeField &U) {
void WilsonFlow<Gimpl>::evolve_step(typename Gimpl::GaugeField &U) const{
GaugeField Z(U._grid);
GaugeField tmp(U._grid);
SG.deriv(U, Z);
@ -104,13 +109,11 @@ void WilsonFlow<Gimpl>::smear(GaugeField& out, const GaugeField& in) const {
out = in;
for (unsigned int step = 0; step < Nstep; step++) {
evolve_step(out);
// Energy density, plaquette
std::cout << GridLogMessage
<< "[WilsonFlow] Energy Density (step) : "
<< step
<< " " << energyDensityPlaquette(step, out)
<< std::endl;
}
std::cout << "[WilsonFlow] Energy density (plaq) : "
<< step << " "
<< energyDensityPlaquette(step,out) << std::endl;
}
}
} // namespace QCD