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continued baryon contraction code

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ferben
2019-02-18 13:10:34 +00:00
parent c77069244d
commit 625ccfcd72
2 changed files with 46 additions and 39 deletions
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57
Hadrons/Modules/MDistil/BContraction.hpp
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@@ -175,27 +175,12 @@ void TBContraction<FImpl>::execute(void)
};
std::vector<Complex> factor23{{0.,-1.},{0.,1.},{0.,1.}};
using BaryonTensorSet = Eigen::Tensor<Complex, 6>;
BaryonTensorSet BField3(Nmom,4,Nt,N_1,N_2,N_3);
int Ngamma=3;
BaryonTensorSet BField3(Nmom,4*Ngamma,Nt,N_1,N_2,N_3);
Eigen::Tensor<Complex, 3> corr(Nmom,4,Nt);
//Needs more work - but this is important for contraction
/* int Npairs = 0;
char left[] = "uud";
char right[] = "uud";
std::vector<std::vector<int>> pairs;
for (int il=0, i=0 ; il < 3 ; il++){
for (int ir=0 ; ir < 3 ; ir++){
if (il>ir) continue;
if (left[il] != right[il]) continue;
pairs[i][0]=il;
pairs[i][1]=ir;
i++;
Npairs = i;
}
std::cout << "pairs: " << pairs << std::endl;
}
*/
Complex diquark2;
for (int i1=0 ; i1 < N_1 ; i1++){
for (int i2=0 ; i2 < N_2 ; i2++){
@@ -215,13 +200,15 @@ void TBContraction<FImpl>::execute(void)
tmp22s()(is)() = tmp22[sU]()(is)(epsilon[ie][1]);
tmp33s()(is)() = tmp33[sU]()(is)(epsilon[ie][2]);
}
tmp333 = Gamma(gamma23_[0])*tmp33s;
tmp111 = Gamma(gamma12_[0])*tmp11s;
for (int ig=0 ; ig < Ngamma ; ig++){
tmp333 = Gamma(gamma23_[ig])*tmp33s;
tmp111 = Gamma(gamma12_[ig])*tmp11s;
tmp222 = g4*tmp111;
tmp111 = 0.5*(double)parity*(tmp111 + tmp222); // P_\pm * ...
diquark2 = factor23[0]*innerProduct(tmp22s,tmp333);
for (int is=0 ; is < 4 ; is++){
BField3(imom,is,t,i1,i2,i3)+=(double)epsilon_sgn[ie]*tmp111()(is)()*diquark2;
BField3(imom,is+4*ig,t,i1,i2,i3)+=(double)epsilon_sgn[ie]*tmp111()(is)()*diquark2;
}
}
}
}
@@ -236,9 +223,28 @@ void TBContraction<FImpl>::execute(void)
}
}
//Product ijk * ijk
// for ijk * jik: (0,1),(1,0),(2,2) z.b.
Eigen::array<Eigen::IndexPair<int>, 3> product_dims = { Eigen::IndexPair<int>(0,0),Eigen::IndexPair<int>(1,1) ,Eigen::IndexPair<int>(2,2) };
int Npairs = 0;
char left[] = "uud";
char right[] = "uud";
std::vector<int> pairs(6);
for (int ie=0, i=0 ; ie < 6 ; ie++){
if (left[0] == right[epsilon[ie][0]] && left[1] == right[epsilon[ie][1]] && left[2] == right[epsilon[ie][2]]){
pairs[i] = ie;
i++;
Npairs++;
}
}
pairs.resize(Npairs);
std::cout << Npairs << " pairs: " << pairs << std::endl;
for (int imom=0 ; imom < Nmom ; imom++){
for (int is=0 ; is < 4 ; is++){
for (int t=0 ; t < Nt ; t++){
corr(imom,is,t) = 0.;
}
}
}
for (int ipair=0 ; ipair < Npairs ; ipair++){
Eigen::array<Eigen::IndexPair<int>, 3> product_dims = { Eigen::IndexPair<int>(0,epsilon[pairs[ipair]][0]),Eigen::IndexPair<int>(1,epsilon[pairs[ipair]][1]) ,Eigen::IndexPair<int>(2,epsilon[pairs[ipair]][2]) };
for (int imom=0 ; imom < Nmom ; imom++){
Eigen::Tensor<Complex,5> B5 = BField3.chip(imom,0);
for (int is=0 ; is < 4 ; is++){
@@ -246,7 +252,8 @@ void TBContraction<FImpl>::execute(void)
for (int t=0 ; t < Nt ; t++){
Eigen::Tensor<Complex,3> B3 = B4.chip(t,0);
Eigen::Tensor<Complex,0> C2 = B3.contract(B3,product_dims);
corr(imom,is,t) = C2(0);
corr(imom,is,t) += C2(0);
}
}
}
}

4
tests/hadrons/Test_hadrons_distil.cc
View File

@@ -506,8 +506,8 @@ void EigenSliceExample()
{600, 700, 800}, {900, 1000, 1100}});
std::cout << "a\n" << a << std::endl;
DumpMemoryOrder( a, "a" );
Eigen::array<typename T2::Index, 2> offsets = {1, 0};
Eigen::array<typename T2::Index, 2> extents = {2, 2};
Eigen::array<typename T2::Index, 2> offsets = {0, 1};
Eigen::array<typename T2::Index, 2> extents = {4, 2};
T2 slice = a.slice(offsets, extents);
std::cout << "slice\n" << slice << std::endl;
DumpMemoryOrder( slice, "slice" );