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ferben
parent
a887206413
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253bcc3426
@ -46,44 +46,20 @@ public:
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typedef typename SpinMatrixField::vector_object sobj;
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static const int epsilon[6][3] ;
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static const double epsilon_sgn[6];
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static const Complex epsilon_sgn[6];
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private:
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template <class mobj, class robj>
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static inline void baryon_site(unsigned int mask, const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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robj &result);
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template <unsigned int mask, class mobj, class robj>
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static inline void baryon_site(const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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robj &result);
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template <unsigned int maxMask>
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struct BaryonSiteHelper
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{
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template <class mobj, class robj>
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static inline void function(const unsigned int mask, const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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robj &result);
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};
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static void baryon_site(const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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const int * wick_contractions,
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robj &result);
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public:
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static void ContractBaryons(const PropagatorField &q1_left,
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const PropagatorField &q2_left,
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@ -176,11 +152,17 @@ public:
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template <class FImpl>
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const int BaryonUtils<FImpl>::epsilon[6][3] = {{0,1,2},{1,2,0},{2,0,1},{0,2,1},{2,1,0},{1,0,2}};
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template <class FImpl>
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const double BaryonUtils<FImpl>::epsilon_sgn[6] = {1.0,1.0,1.0,-1.0,-1.0,-1.0};
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const Complex BaryonUtils<FImpl>::epsilon_sgn[6] = {Complex(1),
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Complex(1),
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Complex(1),
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Complex(-1),
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Complex(-1),
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Complex(-1)};
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//This is the old version
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template <class FImpl>
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template <unsigned int mask, class mobj, class robj>
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inline void BaryonUtils<FImpl>::baryon_site(const mobj &D1,
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template <class mobj, class robj>
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void BaryonUtils<FImpl>::baryon_site(const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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@ -188,14 +170,9 @@ inline void BaryonUtils<FImpl>::baryon_site(const mobj &D1,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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const int * wick_contraction,
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robj &result)
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{
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constexpr bool wick_contraction_0 = ((mask & (1 << 5)) >> 5);
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constexpr bool wick_contraction_1 = ((mask & (1 << 4)) >> 4);
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constexpr bool wick_contraction_2 = ((mask & (1 << 3)) >> 3);
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constexpr bool wick_contraction_3 = ((mask & (1 << 2)) >> 2);
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constexpr bool wick_contraction_4 = ((mask & (1 << 1)) >> 1);
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constexpr bool wick_contraction_5 = ((mask & (1 << 0)) >> 0);
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Gamma g4(Gamma::Algebra::GammaT); //needed for parity P_\pm = 0.5*(1 \pm \gamma_4)
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@ -216,84 +193,77 @@ inline void BaryonUtils<FImpl>::baryon_site(const mobj &D1,
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int a_right = epsilon[ie_right][0]; //a'
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int b_right = epsilon[ie_right][1]; //b'
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int c_right = epsilon[ie_right][2]; //c'
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double ee = epsilon_sgn[ie_left] * epsilon_sgn[ie_right];
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//All parts together
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Complex ee = epsilon_sgn[ie_left] * epsilon_sgn[ie_right];
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//This is the \delta_{456}^{123} part
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if (wick_contraction[0]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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auto eepD1 = ee * pD1()(gamma_left,gamma_left)(c_right,c_left);
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto D2g_ab = D2g()(alpha_right,beta_left)(a_right,a_left);
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auto gD3_ab = gD3()(alpha_right,beta_left)(b_right,b_left);
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result()()() += eepD1*D2g_ab*gD3_ab;
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}}}
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}
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//This is the \delta_{456}^{231} part
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if (wick_contraction[1]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto gD3_ag = gD3()(alpha_right,gamma_left)(b_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1g_gb = ee * pD1g()(gamma_left,beta_left)(c_right,a_left);
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auto D2_ab = D2()(alpha_right,beta_left)(a_right,b_left);
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result()()() += eepD1g_gb*D2_ab*gD3_ag;
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}}}
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}
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//This is the \delta_{456}^{312} part
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if (wick_contraction[2]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto D2_ag = D2()(alpha_right,gamma_left)(a_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1_gb = ee * pD1()(gamma_left,beta_left)(c_right,b_left);
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auto gD3g_ab = gD3g()(alpha_right,beta_left)(b_right,a_left);
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result()()() += eepD1_gb*D2_ag*gD3g_ab;
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}}}
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}
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//This is the \delta_{456}^{132} part
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if (wick_contraction[3]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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auto eepD1 = ee * pD1()(gamma_left,gamma_left)(c_right,c_left);
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto D2_ab = D2()(alpha_right,beta_left)(a_right,b_left);
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auto gD3g_ab = gD3g()(alpha_right,beta_left)(b_right,a_left);
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result()()() -= eepD1*D2_ab*gD3g_ab;
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}}}
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}
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//This is the \delta_{456}^{321} part
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if (wick_contraction[4]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto gD3_ag = gD3()(alpha_right,gamma_left)(b_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1_gb = ee * pD1()(gamma_left,beta_left)(c_right,b_left);
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auto D2g_ab = D2g()(alpha_right,beta_left)(a_right,a_left);
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result()()() -= eepD1_gb*D2g_ab*gD3_ag;
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}}}
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}
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//This is the \delta_{456}^{213} part
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if (wick_contraction[5]){
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for (int gamma_left=0; gamma_left<Ns; gamma_left++){
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for (int alpha_right=0; alpha_right<Ns; alpha_right++){
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auto D2_ag = D2()(alpha_right,gamma_left)(a_right,c_left);
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for (int beta_left=0; beta_left<Ns; beta_left++){
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auto eepD1g_gb = ee * pD1g()(gamma_left,beta_left)(c_right,a_left);
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auto eepD1_gb = ee * pD1()(gamma_left,beta_left)(c_right,b_left);
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auto D2g_ab = D2g()(alpha_right,beta_left)(a_right,a_left);
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auto D2_ab = D2()(alpha_right,beta_left)(a_right,b_left);
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auto gD3_ab = gD3()(alpha_right,beta_left)(b_right,b_left);
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auto gD3g_ab = gD3g()(alpha_right,beta_left)(b_right,a_left);
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if(wick_contraction_0){
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result()()() += eepD1*D2g_ab*gD3_ab;
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}
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if(wick_contraction_1){
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result()()() += eepD1g_gb*D2_ab*gD3_ag;
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}
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if(wick_contraction_2){
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result()()() += eepD1_gb*D2_ag*gD3g_ab;
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}
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if(wick_contraction_3){
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result()()() -= eepD1*D2_ab*gD3g_ab;
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}
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if(wick_contraction_4){
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result()()() -= eepD1_gb*D2g_ab*gD3_ag;
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}
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if(wick_contraction_5){
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result()()() -= eepD1g_gb*D2_ag*gD3_ab;
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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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}
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template <class FImpl>
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template <unsigned int maxMask>
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template <class mobj, class robj>
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inline void BaryonUtils<FImpl>::BaryonSiteHelper<maxMask>::function(const unsigned int mask, const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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robj &result)
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{
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assert(mask <= maxMask);
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if (mask == maxMask)
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{
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baryon_site<maxMask,decltype(D1),decltype(result)>(D1, D2, D3, GammaA_left, GammaB_left, GammaA_right, GammaB_right, parity, result);
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}
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else
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{
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BaryonSiteHelper<(maxMask>0) ? maxMask-1 : 0>::function(mask, D1, D2, D3, GammaA_left, GammaB_left, GammaA_right, GammaB_right, parity, result);
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}
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}
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// top-level function
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template <class FImpl>
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template <class mobj, class robj>
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inline void BaryonUtils<FImpl>::baryon_site(const unsigned int mask, const mobj &D1,
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const mobj &D2,
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const mobj &D3,
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const Gamma GammaA_left,
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const Gamma GammaB_left,
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const Gamma GammaA_right,
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const Gamma GammaB_right,
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const int parity,
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robj &result)
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{
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BaryonSiteHelper<63>::function(mask, D1, D2, D3, GammaA_left, GammaB_left, GammaA_right, GammaB_right, parity, result);
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}
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template<class FImpl>
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void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
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const PropagatorField &q2_left,
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@ -307,30 +277,30 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
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const int parity,
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ComplexField &baryon_corr)
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{
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assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
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assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
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std::cout << "Contraction <" << quarks_right[0] << quarks_right[1] << quarks_right[2] << "|" << quarks_left[0] << quarks_left[1] << quarks_left[2] << ">" << std::endl;
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assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
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assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
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std::cout << "Contraction <" << quarks_right[0] << quarks_right[1] << quarks_right[2] << "|" << quarks_left[0] << quarks_left[1] << quarks_left[2] << ">" << std::endl;
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std::cout << "GammaA (left) " << (GammaA_left.g) << std::endl;
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std::cout << "GammaB (left) " << (GammaB_left.g) << std::endl;
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std::cout << "GammaA (right) " << (GammaA_right.g) << std::endl;
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std::cout << "GammaB (right) " << (GammaB_right.g) << std::endl;
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assert(parity==1 || parity == -1 && "Parity must be +1 or -1");
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assert(parity==1 || parity == -1 && "Parity must be +1 or -1");
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GridBase *grid = q1_left.Grid();
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GridBase *grid = q1_left.Grid();
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int wick_id;
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for (int ie=0; ie < 6 ; ie++)
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wick_id = ((quarks_left[0] == quarks_right[epsilon[ie][0]] && quarks_left[1] == quarks_right[epsilon[ie][1]] && quarks_left[2] == quarks_right[epsilon[ie][2]]) ? 1 : 0) << (5-ie);
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int wick_contraction[6];
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for (int ie=0; ie < 6 ; ie++)
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wick_contraction[ie] = (quarks_left[0] == quarks_right[epsilon[ie][0]] && quarks_left[1] == quarks_right[epsilon[ie][1]] && quarks_left[2] == quarks_right[epsilon[ie][2]]) ? 1 : 0;
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auto vbaryon_corr= baryon_corr.View();
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auto v1 = q1_left.View();
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auto v2 = q2_left.View();
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auto v3 = q3_left.View();
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auto vbaryon_corr= baryon_corr.View();
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auto v1 = q1_left.View();
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auto v2 = q2_left.View();
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auto v3 = q3_left.View();
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// accelerator_for(ss, grid->oSites(), grid->Nsimd(), {
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// accelerator_for(ss, grid->oSites(), grid->Nsimd(), {
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thread_for(ss,grid->oSites(),{
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//for(int ss=0; ss < grid->oSites(); ss++){
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@ -339,10 +309,9 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
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auto D3 = v3[ss];
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vobj result=Zero();
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baryon_site(wick_id,D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,result);
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baryon_site(D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,wick_contraction,result);
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vbaryon_corr[ss] = result;
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} );//end loop over lattice sites
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}
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template <class FImpl>
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template <class mobj, class robj>
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@ -359,23 +328,23 @@ void BaryonUtils<FImpl>::ContractBaryons_Sliced(const mobj &D1,
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robj &result)
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{
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assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
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assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
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std::cout << "Contraction <" << quarks_right[0] << quarks_right[1] << quarks_right[2] << "|" << quarks_left[0] << quarks_left[1] << quarks_left[2] << ">" << std::endl;
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assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
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assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
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std::cout << "Contraction <" << quarks_right[0] << quarks_right[1] << quarks_right[2] << "|" << quarks_left[0] << quarks_left[1] << quarks_left[2] << ">" << std::endl;
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std::cout << "GammaA (left) " << (GammaA_left.g) << std::endl;
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std::cout << "GammaB (left) " << (GammaB_left.g) << std::endl;
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std::cout << "GammaA (right) " << (GammaA_right.g) << std::endl;
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std::cout << "GammaB (right) " << (GammaB_right.g) << std::endl;
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assert(parity==1 || parity == -1 && "Parity must be +1 or -1");
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assert(parity==1 || parity == -1 && "Parity must be +1 or -1");
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int wick_id;
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for (int ie=0; ie < 6 ; ie++)
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wick_id = ((quarks_left[0] == quarks_right[epsilon[ie][0]] && quarks_left[1] == quarks_right[epsilon[ie][1]] && quarks_left[2] == quarks_right[epsilon[ie][2]]) ? 1 : 0) << (5-ie);
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result=Zero();
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baryon_site(wick_id,D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,result);
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int wick_contraction[6];
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for (int ie=0; ie < 6 ; ie++)
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wick_contraction[ie] = (quarks_left[0] == quarks_right[epsilon[ie][0]] && quarks_left[1] == quarks_right[epsilon[ie][1]] && quarks_left[2] == quarks_right[epsilon[ie][2]]) ? 1 : 0;
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result=Zero();
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baryon_site<decltype(D1),decltype(result)>(D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,parity,wick_contraction,result);
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}
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/***********************************************************************
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@ -615,10 +584,6 @@ void BaryonUtils<FImpl>::Sigma_to_Nucleon_Eye(const PropagatorField &qq_loop,
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const std::string op,
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SpinMatrixField &stn_corr)
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{
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assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
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assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
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GridBase *grid = qs_ti.Grid();
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auto vcorr= stn_corr.View();
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@ -656,10 +621,6 @@ void BaryonUtils<FImpl>::Sigma_to_Nucleon_NonEye(const PropagatorField &qq_ti,
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const std::string op,
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SpinMatrixField &stn_corr)
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{
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assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
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assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
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GridBase *grid = qs_ti.Grid();
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auto vcorr= stn_corr.View();
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