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Converted set_uw and set_fj to all complex functions

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This commit is contained in:
Guido Cossu 2016-07-03 10:27:43 +01:00
parent 092fa0d8da
commit 1a6d65c6a4
3 changed files with 185 additions and 115 deletions
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12
lib/qcd/smearing/GaugeConfiguration.h
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@ -81,11 +81,16 @@ GaugeField AnalyticSmearedForce(const GaugeField& SigmaKPrime,
StoutSmearing.derivative(SigmaK, iLambda, GaugeK);// derivative of SmearBase
return SigmaK;
}
/*! @brief Returns smeared configuration at level 'Level' */
/*! @brief Returns smeared configuration at level 'Level' */
const GaugeField& get_smeared_conf(int Level) const{
return SmearedSet[Level];
}
//====================================================================
//====================================================================
void set_iLambda(GaugeLinkField& iLambda,
GaugeLinkField& e_iQ,
const GaugeLinkField& iQ,
@ -179,7 +184,8 @@ void set_iLambda(GaugeLinkField& iLambda,
}
//====================================================================
//====================================================================
public:
GaugeField* ThinLinks; /*!< @brief Pointer to the thin
links configuration */

114
lib/qcd/smearing/StoutSmearing.h
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@ -15,8 +15,6 @@
const std::vector<double> d_rho;
const Smear < Gimpl > * SmearBase;
public:
INHERIT_GIMPL_TYPES(Gimpl)
@ -39,29 +37,35 @@
//Smear the configurations
SmearBase->smear(C, U);
for (int mu = 0; mu<Nd; mu++){
for (int mu = 0; mu<Nd; mu++)
{
tmp = peekLorentz(C,mu);
Umu = peekLorentz(U,mu);
iq_mu = Ta(tmp * adj(Umu)); // iq_mu = Ta(Omega_mu) to match the signs with the paper
exponentiate_iQ(tmp, iq_mu);
GaugeLinkField check = adj(tmp) * tmp - 1.0;
pokeLorentz(u_smr, tmp*Umu, mu);// u_smr = exp(iQ_mu)*U_mu
}
std::cout<< GridLogDebug << "Stout smearing completed\n";
}
void derivative(GaugeField& SigmaTerm,
};
void derivative(GaugeField& SigmaTerm,
const GaugeField& iLambda,
const GaugeField& Gauge) const{
SmearBase->derivative(SigmaTerm, iLambda, Gauge);
}
};
void BaseSmear(GaugeField& C,
void BaseSmear(GaugeField& C,
const GaugeField& U) const{
SmearBase->smear(C, U);
}
};
void exponentiate_iQ(GaugeLinkField& e_iQ,
void exponentiate_iQ(GaugeLinkField& e_iQ,
const GaugeLinkField& iQ) const{
// Put this outside
// only valid for SU(3) matrices
@ -78,19 +82,21 @@ void exponentiate_iQ(GaugeLinkField& e_iQ,
unity=1.0;
GaugeLinkField iQ2(grid), iQ3(grid);
LatticeReal u(grid), w(grid);
LatticeComplex u(grid), w(grid);
LatticeComplex f0(grid), f1(grid), f2(grid);
iQ2 = iQ * iQ;
iQ3 = iQ * iQ2;
set_uw(u, w, iQ2, iQ3);
set_fj(f0, f1, f2, u, w);
set_uw_complex(u, w, iQ2, iQ3);
set_fj_complex(f0, f1, f2, u, w);
e_iQ = f0*unity + timesMinusI(f1) * iQ - f2 * iQ2;
};
};
void set_uw(LatticeReal& u, LatticeReal& w,
void set_uw(LatticeReal& u, LatticeReal& w,
GaugeLinkField& iQ2, GaugeLinkField& iQ3) const{
Real one_over_three = 1.0/3.0;
Real one_over_two = 1.0/2.0;
@ -99,8 +105,8 @@ void set_uw(LatticeReal& u, LatticeReal& w,
LatticeReal c0(grid), c1(grid), tmp(grid), c0max(grid), theta(grid);
// sign in c0 from the conventions on the Ta
// c0 = - toReal(imag(trace(iQ3))) * one_over_three;
c0 = - toReal(real(timesMinusI(trace(iQ3)))) * one_over_three; //temporary, FIX the bug in imag
// c0 = - toReal(imag(trace(iQ3))) * one_over_three;
c0 = - toReal(real(timesMinusI(trace(iQ3)))) * one_over_three; //slow and temporary, FIX the bug in imag
c1 = - toReal(real(trace(iQ2))) * one_over_two;
tmp = c1 * one_over_three;
c0max = 2.0 * pow(tmp, 1.5);
@ -109,9 +115,30 @@ void set_uw(LatticeReal& u, LatticeReal& w,
u = sqrt(tmp) * cos( theta * one_over_three);
w = sqrt(c1) * sin( theta * one_over_three);
}
}
void set_fj(LatticeComplex& f0, LatticeComplex& f1, LatticeComplex& f2,
void set_uw_complex(LatticeComplex& u, LatticeComplex& w,
GaugeLinkField& iQ2, GaugeLinkField& iQ3) const{
Complex one_over_three = 1.0/3.0;
Complex one_over_two = 1.0/2.0;
GridBase *grid = u._grid;
LatticeComplex c0(grid), c1(grid), tmp(grid), c0max(grid), theta(grid);
// sign in c0 from the conventions on the Ta
c0 = - real(timesMinusI(trace(iQ3))) * one_over_three; //temporary hack
c1 = - real(trace(iQ2)) * one_over_two;
tmp = c1 * one_over_three;
c0max = 2.0 * pow(tmp, 1.5);
theta = acos(c0/c0max);
u = sqrt(tmp) * cos( theta * one_over_three);
w = sqrt(c1) * sin( theta * one_over_three);
}
void set_fj(LatticeComplex& f0, LatticeComplex& f1, LatticeComplex& f2,
const LatticeReal& u, const LatticeReal& w) const{
GridBase *grid = u._grid;
@ -144,24 +171,61 @@ void set_fj(LatticeComplex& f0, LatticeComplex& f1, LatticeComplex& f2,
f2 = h2 * fden;
}
}
void set_fj_complex(LatticeComplex& f0, LatticeComplex& f1, LatticeComplex& f2,
const LatticeComplex& u, const LatticeComplex& w) const{
GridBase *grid = u._grid;
LatticeComplex xi0(grid), u2(grid), w2(grid), cosw(grid), tmp(grid);
LatticeComplex fden(grid);
LatticeComplex h0(grid), h1(grid), h2(grid);
LatticeComplex e2iu(grid), emiu(grid), ixi0(grid), qt(grid);
xi0 = sin(w)/w;//func_xi0(w);
u2 = u * u;
w2 = w * w;
cosw = cos(w);
ixi0 = timesI(xi0);
emiu = cos(u) - timesI(sin(u));
e2iu = cos(2.0*u) + timesI(sin(2.0*u));
h0 = e2iu * (u2 - w2) + emiu *( (8.0*u2*cosw) +
(2.0*u*(3.0*u2 + w2)*ixi0));
h1 = (2.0*u) * e2iu - emiu*( (2.0*u*cosw) -
(3.0*u2-w2)*ixi0);
h2 = e2iu - emiu * (cosw + (3.0*u)*ixi0);
tmp = 9.0*u2 - w2;
fden = pow(tmp, -1.0);
f0 = h0 * fden;
f1 = h1 * fden;
f2 = h2 * fden;
LatticeReal func_xi0(const LatticeReal& w) const{
}
LatticeReal func_xi0(const LatticeReal& w) const{
// Define a function to do the check
//if( w < 1e-4 ) std::cout << GridLogWarning<< "[Smear_stout] w too small: "<< w <<"\n";
return sin(w)/w;
}
}
LatticeReal func_xi1(const LatticeReal& w) const{
LatticeReal func_xi1(const LatticeReal& w) const{
// Define a function to do the check
//if( w < 1e-4 ) std::cout << GridLogWarning << "[Smear_stout] w too small: "<< w <<"\n";
return cos(w)/(w*w) - sin(w)/(w*w*w);
}
}
};
};
}
}
}
#endif

2
lib/simd/Grid_vector_types.h
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@ -490,7 +490,7 @@ namespace Grid {
typedef Grid_simd<S,V> simd;
simd ret;
typename simd::conv_t conv;
conv.v = in.v;
conv.v = in.v; // copy the vector content (bytewise)
for(int i=0;i<simd::Nsimd();i+=2){
conv.s[i+1]=conv.s[i]; // duplicate (r,r);(r,r);(r,r); etc...
}