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first contraction version done

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ferben 2019-02-15 14:32:17 +00:00
parent a111d814db
commit e0987d7d81
1 changed files with 22 additions and 5 deletions
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27
Hadrons/Modules/MDistil/BContraction.hpp
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@ -175,8 +175,10 @@ void TBContraction<FImpl>::execute(void)
};
std::vector<Complex> factor23{{0.,-1.},{0.,1.},{0.,1.}};
//BaryonTensorSet<Complex> BField3(storage,Nmom,4,Nt,N_1,N_2,N_3);
using BaryonTensorSet = Eigen::Tensor<Complex, 6, Eigen::RowMajor>;
using BaryonTensorSet = Eigen::Tensor<Complex, 6>;
BaryonTensorSet BField3(Nmom,4,Nt,N_1,N_2,N_3);
using C2Set = Eigen::Tensor<Complex, 3>;
C2Set corr(Nmom,4,Nt);
std::vector<SpinVector> BField2(Nmom*Nt*N_1*N_2*N_3);
Complex diquark2;
@ -223,10 +225,25 @@ void TBContraction<FImpl>::execute(void)
}
//Product ijk * ijk
// for ijk * jik: (4,5),(5,4),(6,6) z.b.
Eigen::array<Eigen::IndexPair<int>, 3> product_dims = { Eigen::IndexPair<int>(4, 4),Eigen::IndexPair<int>(5, 5) ,Eigen::IndexPair<int>(6, 6) };
// Whycan't I choose the dimension to be 3??? Want to sum over them, not save each element!
Eigen::Tensor<Complex,6,Eigen::RowMajor> C2 = BField3.contract(BField3,product_dims);
// 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) };
for (int imom=0 ; imom < Nmom ; imom++){
Eigen::Tensor<Complex,5> B5 = BField3.chip(imom,0);
for (int is=0 ; is < 4 ; is++){
Eigen::Tensor<Complex,4> B4 = B5.chip(is,0);
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);
}
}
}
//Eigen::Tensor<Complex,6,Eigen::RowMajor> C2 = BField3.contract(BField3,product_dims);
for (int is=0 ; is < 4 ; is++){
for (int t=0 ; t < Nt ; t++){
std::cout << "C2(is=" << is << ",t=" << t << ") = " << corr(0,is,t) << std::endl;
}
}
}
END_MODULE_NAMESPACE