portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2024-11-14 01:35:36 +00:00
Code Releases Activity

Added untraced baryon contraction code

Browse Source
This commit is contained in:
Raoul Hodgson 2020-10-19 16:13:28 +01:00
parent 3362f8dfa0
commit 463d72d322
1 changed files with 231 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

231
Grid/qcd/utils/BaryonUtils.h
View File

@ -61,6 +61,16 @@ public:
const int parity, const int parity,
const bool * wick_contractions, const bool * wick_contractions,
robj &result); robj &result);
template <class mobj, class robj>
static void baryon_site_matrix(const mobj &D1,
const mobj &D2,
const mobj &D3,
const Gamma GammaA_left,
const Gamma GammaB_left,
const Gamma GammaA_right,
const Gamma GammaB_right,
const bool * wick_contractions,
robj &result);
public: public:
static void Wick_Contractions(std::string qi, static void Wick_Contractions(std::string qi,
std::string qf, std::string qf,
@ -75,6 +85,15 @@ public:
const bool* wick_contractions, const bool* wick_contractions,
const int parity, const int parity,
ComplexField &baryon_corr); ComplexField &baryon_corr);
static void ContractBaryons_matrix(const PropagatorField &q1_left,
const PropagatorField &q2_left,
const PropagatorField &q3_left,
const Gamma GammaA_left,
const Gamma GammaB_left,
const Gamma GammaA_right,
const Gamma GammaB_right,
const bool* wick_contractions,
SpinMatrixField &baryon_corr);
template <class mobj, class robj> template <class mobj, class robj>
static void ContractBaryons_Sliced(const mobj &D1, static void ContractBaryons_Sliced(const mobj &D1,
const mobj &D2, const mobj &D2,
@ -87,6 +106,17 @@ public:
const int parity, const int parity,
const int nt, const int nt,
robj &result); robj &result);
template <class mobj, class robj>
static void ContractBaryons_Sliced_matrix(const mobj &D1,
const mobj &D2,
const mobj &D3,
const Gamma GammaA_left,
const Gamma GammaB_left,
const Gamma GammaA_right,
const Gamma GammaB_right,
const bool* wick_contractions,
const int nt,
robj &result);
private: private:
template <class mobj, class mobj2, class robj> template <class mobj, class mobj2, class robj>
static void Baryon_Gamma_3pt_Group1_Site( static void Baryon_Gamma_3pt_Group1_Site(
@ -329,6 +359,126 @@ void BaryonUtils<FImpl>::baryon_site(const mobj &D1,
}} }}
} }
//New version without parity projection or trace
template <class FImpl>
template <class mobj, class robj>
void BaryonUtils<FImpl>::baryon_site_matrix(const mobj &D1,
const mobj &D2,
const mobj &D3,
const Gamma GammaA_i,
const Gamma GammaB_i,
const Gamma GammaA_f,
const Gamma GammaB_f,
const bool * wick_contraction,
robj &result)
{
auto D1_GAi = D1 * GammaA_i;
auto GAf_D1_GAi = GammaA_f * D1_GAi;
auto GBf_D1_GAi = GammaB_f * D1_GAi;
auto D2_GBi = D2 * GammaB_i;
auto GBf_D2_GBi = GammaB_f * D2_GBi;
auto GAf_D2_GBi = GammaA_f * D2_GBi;
auto GBf_D3 = GammaB_f * D3;
auto GAf_D3 = GammaA_f * D3;
for (int ie_f=0; ie_f < 6 ; ie_f++){
int a_f = epsilon[ie_f][0]; //a
int b_f = epsilon[ie_f][1]; //b
int c_f = epsilon[ie_f][2]; //c
for (int ie_i=0; ie_i < 6 ; ie_i++){
int a_i = epsilon[ie_i][0]; //a'
int b_i = epsilon[ie_i][1]; //b'
int c_i = epsilon[ie_i][2]; //c'
Real ee = epsilon_sgn[ie_f] * epsilon_sgn[ie_i];
//This is the \delta_{456}^{123} part
if (wick_contraction[0]){
for (int rho_i=0; rho_i<Ns; rho_i++){
for (int rho_f=0; rho_f<Ns; rho_f++){
auto GAf_D1_GAi_rr_cc = GAf_D1_GAi()(rho_f,rho_i)(c_f,c_i);
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
for (int beta_i=0; beta_i<Ns; beta_i++){
result()(rho_f,rho_i)() += ee * GAf_D1_GAi_rr_cc
* D2_GBi ()(alpha_f,beta_i)(a_f,a_i)
* GBf_D3 ()(alpha_f,beta_i)(b_f,b_i);
}}
}}
}
//This is the \delta_{456}^{231} part
if (wick_contraction[1]){
for (int rho_i=0; rho_i<Ns; rho_i++){
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
auto D1_GAi_ar_ac = D1_GAi()(alpha_f,rho_i)(a_f,c_i);
for (int beta_i=0; beta_i<Ns; beta_i++){
auto GBf_D2_GBi_ab_ba = GBf_D2_GBi ()(alpha_f,beta_i)(b_f,a_i);
for (int rho_f=0; rho_f<Ns; rho_f++){
result()(rho_f,rho_i)() += ee * D1_GAi_ar_ac
* GBf_D2_GBi_ab_ba
* GAf_D3 ()(rho_f,beta_i)(c_f,b_i);
}}
}}
}
//This is the \delta_{456}^{312} part
if (wick_contraction[2]){
for (int rho_i=0; rho_i<Ns; rho_i++){
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
auto GBf_D1_GAi_ar_bc = GBf_D1_GAi()(alpha_f,rho_i)(b_f,c_i);
for (int beta_i=0; beta_i<Ns; beta_i++){
auto D3_ab_ab = D3 ()(alpha_f,beta_i)(a_f,b_i);
for (int rho_f=0; rho_f<Ns; rho_f++){
result()(rho_f,rho_i)() += ee * GBf_D1_GAi_ar_bc
* GAf_D2_GBi ()(rho_f,beta_i)(c_f,a_i)
* D3_ab_ab;
}}
}}
}
//This is the \delta_{456}^{132} part
if (wick_contraction[3]){
for (int rho_i=0; rho_i<Ns; rho_i++){
for (int rho_f=0; rho_f<Ns; rho_f++){
auto GAf_D1_GAi_rr_cc = GAf_D1_GAi()(rho_f,rho_i)(c_f,c_i);
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
for (int beta_i=0; beta_i<Ns; beta_i++){
result()(rho_f,rho_i)() -= ee * GAf_D1_GAi_rr_cc
* GBf_D2_GBi ()(alpha_f,beta_i)(b_f,a_i)
* D3 ()(alpha_f,beta_i)(a_f,b_i);
}}
}}
}
//This is the \delta_{456}^{321} part
if (wick_contraction[4]){
for (int rho_i=0; rho_i<Ns; rho_i++){
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
auto GBf_D1_GAi_ar_bc = GBf_D1_GAi()(alpha_f,rho_i)(b_f,c_i);
for (int beta_i=0; beta_i<Ns; beta_i++){
auto D2_GBi_ab_aa = D2_GBi()(alpha_f,beta_i)(a_f,a_i);
for (int rho_f=0; rho_f<Ns; rho_f++){
result()(rho_f,rho_i)() -= ee * GBf_D1_GAi_ar_bc
* D2_GBi_ab_aa
* GAf_D3 ()(rho_f,beta_i)(c_f,b_i);
}}
}}
}
//This is the \delta_{456}^{213} part
if (wick_contraction[5]){
for (int rho_i=0; rho_i<Ns; rho_i++){
for (int alpha_f=0; alpha_f<Ns; alpha_f++){
auto D1_GAi_ar_ac = D1_GAi()(alpha_f,rho_i)(a_f,c_i);
for (int beta_i=0; beta_i<Ns; beta_i++){
auto GBf_D3_ab_bb = GBf_D3()(alpha_f,beta_i)(b_f,b_i);
for (int rho_f=0; rho_f<Ns; rho_f++){
result()(rho_f,rho_i)() -= ee * D1_GAi_ar_ac
* GAf_D2_GBi ()(rho_f,beta_i)(c_f,a_i)
* GBf_D3_ab_bb;
}}
}}
}
}}
}
/* Computes which wick contractions should be performed for a * /* Computes which wick contractions should be performed for a *
* baryon 2pt function given the initial and finals state quark * * baryon 2pt function given the initial and finals state quark *
* flavours. * * flavours. *
@ -404,6 +554,60 @@ void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1_left,
t += usecond(); t += usecond();
std::cout << std::setw(10) << bytes/t*1.0e6/1024/1024/1024 << " GB/s " << std::endl; std::cout << std::setw(10) << bytes/t*1.0e6/1024/1024/1024 << " GB/s " << std::endl;
}
template<class FImpl>
void BaryonUtils<FImpl>::ContractBaryons_matrix(const PropagatorField &q1_left,
const PropagatorField &q2_left,
const PropagatorField &q3_left,
const Gamma GammaA_left,
const Gamma GammaB_left,
const Gamma GammaA_right,
const Gamma GammaB_right,
const bool* wick_contractions,
SpinMatrixField &baryon_corr)
{
assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
std::cout << "GammaA (left) " << (GammaA_left.g) << std::endl;
std::cout << "GammaB (left) " << (GammaB_left.g) << std::endl;
std::cout << "GammaA (right) " << (GammaA_right.g) << std::endl;
std::cout << "GammaB (right) " << (GammaB_right.g) << std::endl;
GridBase *grid = q1_left.Grid();
autoView(vbaryon_corr, baryon_corr,CpuWrite);
autoView( v1 , q1_left, CpuRead);
autoView( v2 , q2_left, CpuRead);
autoView( v3 , q3_left, CpuRead);
// Real bytes =0.;
// bytes += grid->oSites() * (432.*sizeof(vComplex) + 126.*sizeof(int) + 36.*sizeof(Real));
// for (int ie=0; ie < 6 ; ie++){
// if(ie==0 or ie==3){
// bytes += grid->oSites() * (4.*sizeof(int) + 4752.*sizeof(vComplex)) * wick_contractions[ie];
// }
// else{
// bytes += grid->oSites() * (64.*sizeof(int) + 5184.*sizeof(vComplex)) * wick_contractions[ie];
// }
// }
// Real t=0.;
// t =-usecond();
accelerator_for(ss, grid->oSites(), grid->Nsimd(), {
auto D1 = v1[ss];
auto D2 = v2[ss];
auto D3 = v3[ss];
sobj result=Zero();
baryon_site_matrix(D1,D2,D3,GammaA_left,GammaB_left,GammaA_right,GammaB_right,wick_contractions,result);
vbaryon_corr[ss] = result;
} );//end loop over lattice sites
// t += usecond();
// std::cout << std::setw(10) << bytes/t*1.0e6/1024/1024/1024 << " GB/s " << std::endl;
} }
@ -442,6 +646,33 @@ void BaryonUtils<FImpl>::ContractBaryons_Sliced(const mobj &D1,
} }
} }
template <class FImpl>
template <class mobj, class robj>
void BaryonUtils<FImpl>::ContractBaryons_Sliced_matrix(const mobj &D1,
const mobj &D2,
const mobj &D3,
const Gamma GammaA_left,
const Gamma GammaB_left,
const Gamma GammaA_right,
const Gamma GammaB_right,
const bool* wick_contractions,
const int nt,
robj &result)
{
assert(Ns==4 && "Baryon code only implemented for N_spin = 4");
assert(Nc==3 && "Baryon code only implemented for N_colour = 3");
std::cout << "GammaA (left) " << (GammaA_left.g) << std::endl;
std::cout << "GammaB (left) " << (GammaB_left.g) << std::endl;
std::cout << "GammaA (right) " << (GammaA_right.g) << std::endl;
std::cout << "GammaB (right) " << (GammaB_right.g) << std::endl;
for (int t=0; t<nt; t++) {
baryon_site_matrix(D1[t],D2[t],D3[t],GammaA_left,GammaB_left,GammaA_right,GammaB_right,wick_contractions,result[t]);
}
}
/*********************************************************************** /***********************************************************************
* End of Baryon 2pt-function code. * * End of Baryon 2pt-function code. *
* * * *