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Checking in to move back to genoa

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This commit is contained in:
Chulwoo Jung
2025-12-05 23:56:40 +00:00
parent 376150c3df
commit 43ea83e5e1
1 changed files with 36 additions and 11 deletions
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Grid/algorithms/iterative/KrylovSchur.h
+36 -11
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@@ -361,17 +361,39 @@ class KrylovSchur {
temp2=RayleighS.adjoint(); //(B-tI)^-1*
Eigen::VectorXcd g = temp2*b; //g = (B-tI)^-1* * b
std::cout << GridLogMessage << " b "<< b <<std::endl;
std::cout << GridLogMessage << " g "<< g <<std::endl;
Eigen::MatrixXcd Btilde= Rayleigh + g*(b.adjoint());
Field utilde(Grid);
utilde = u;
for (int j = 0; j<Nm; j++){
utilde -= basis[j]*g(j);
}
// Eq.(38)
if(shift){
Field w(Grid);
ComplexD coeff;
for (int j = 0; j < Nm; j++) {
Linop.Op(basis[j], w);
for (int k = 0; k < Nm; k++) {
coeff = innerProduct(basis[k], w); // coeff = h_{ij}. Note that since {vi} is ONB it's OK to subtract it off after.
std::cout << GridLogMessage << " Btilde "<<k<<" "<<j<<" "<<Btilde(k,j)<<" "<<coeff << std::endl;
// std::cout << GridLogMessage << " JKYJKYJKY Btilde-B "<<" "<<Btilde(k,j)-Rayleigh(k,j)<<" g "<<g(k)<<" b "<<b(j) << std::endl;
}
coeff = innerProduct(utilde,w); // coeff = h_{ij}. Note that since {vi} is ONB it's OK to subtract it off after.
std::cout << GridLogMessage << " utilde "<<j<<" "<<coeff << " b "<< b(j) << std::endl;
}
}
ComplexSchurDecomposition schur (Rayleigh, false, ritzFilter);
std::cout << GridLogMessage << "Schur decomp holds? " << schur.checkDecomposition() << std::endl;
ComplexSchurDecomposition schurS (Btilde, false, ritzFilter);
std::cout << GridLogDebug << "Schur decomp holds? " << schur.checkDecomposition() << std::endl;
std::cout << GridLogMessage << "SchurS decomp holds? " << schurS.checkDecomposition() << std::endl;
// Rearrange Schur matrix so wanted evals are on top left (like MATLAB's ordschur)
std::cout << GridLogMessage << "Reordering Schur eigenvalues" << std::endl;
@@ -384,10 +406,6 @@ class KrylovSchur {
Eigen::MatrixXcd S = schur.getMatrixS();
// std::cout << GridLogDebug << "Schur decomp holds after reorder? " << schur.checkDecomposition() << std::endl;
Eigen::MatrixXcd Q_s = schurS.getMatrixQ();
Eigen::MatrixXcd Qt_s = Q_s.adjoint(); // TODO should Q be real?
Eigen::MatrixXcd S_s = schurS.getMatrixS();
if(1){
Field w(Grid);
@@ -410,6 +428,11 @@ if(1){
Rayleigh = schur.getMatrixS();
b = Q * b; // b^\dag = b^\dag * Q^\dag <==> b = Q*b
Eigen::MatrixXcd Q_s = schurS.getMatrixQ();
Eigen::MatrixXcd Qt_s = Q_s.adjoint(); // TODO should Q be real?
Eigen::MatrixXcd S_s = schurS.getMatrixS();
std::cout << GridLogMessage << " Q_s*Qt_s= " << Q_s*Qt_s <<std::endl;
Btilde = schurS.getMatrixS();
Eigen::VectorXcd b_s = b;
b_s = Q_s * b_s; // b^\dag = b^\dag * Q^\dag <==> b = Q*b
@@ -427,18 +450,19 @@ if(1){
// for (int i = start; i < Nm; i++) {
// basis2.emplace_back(Grid);
// }
constructUR(basis2, basis, Qt, Nm);
basis = basis2;
// constructUR(basis2, basis, Qt, Nm);
std::vector<Field> basis_s;
constructUR(basis_s, basis, Qt_s, Nm);
// basis = basis2_s;
// basis = basis2;
if(1){
Field w(Grid);
ComplexD coeff;
for (int j = 0; j < Nk; j++) {
for (int j = 0; j < Nm; j++) {
Linop.Op(basis[j], w);
for (int k = 0; k < Nm; k++) {
coeff = innerProduct(basis[k], w); // coeff = h_{ij}. Note that since {vi} is ONB it's OK to subtract it off after.
@@ -454,12 +478,13 @@ if(1){
if(shift){
Field w(Grid);
ComplexD coeff;
for (int j = 0; j < Nk; j++) {
ComplexD coeff,coeff2;
for (int j = 0; j < Nm; j++) {
Linop.Op(basis_s[j], w);
for (int k = 0; k < Nm; k++) {
coeff2 = innerProduct(basis_s[k], basis_s[j]);
coeff = innerProduct(basis_s[k], w); // coeff = h_{ij}. Note that since {vi} is ONB it's OK to subtract it off after.
std::cout << GridLogMessage << " Btilde(Shat) "<<k<<" "<<j<<" "<<Btilde(k,j)<<" "<<coeff << std::endl;
std::cout << GridLogMessage << " Btilde(Shat) "<<k<<" "<<j<<" "<<Btilde(k,j)<<" "<<coeff << " <k|j> = " << coeff2 << std::endl;
}
coeff = innerProduct(basis_s[j], utilde); // coeff = h_{ij}. Note that since {vi} is ONB it's OK to subtract it off after.
std::cout << GridLogMessage << " utilde "<<j<<" "<<coeff << std::endl;