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Grid/extras/Hadrons/A2AVectors.hpp

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#ifndef A2A_Vectors_hpp_
#define A2A_Vectors_hpp_
#include <Grid/Hadrons/Global.hpp>
#include <Grid/Hadrons/Environment.hpp>
#include <Grid/Hadrons/Solver.hpp>
BEGIN_HADRONS_NAMESPACE
////////////////////////////////
// A2A Modes
////////////////////////////////
template <typename FImpl>
class A2AVectorsSchurDiagTwo
{
public:
FERM_TYPE_ALIASES(FImpl,);
SOLVER_TYPE_ALIASES(FImpl,);
public:
A2AVectorsSchurDiagTwo(FMat &action, Solver &solver);
virtual ~A2AVectorsSchurDiagTwo(void) = default;
void makeLowModeV(FermionField &vout, const FermionField &evec, const Real &eval);
void makeLowModeV5D(FermionField &vout_4d, FermionField &vout_5d, const FermionField &evec, const Real &eval);
void makeLowModeW(FermionField &wout, const FermionField &evec, const Real &eval);
void makeLowModeW5D(FermionField &wout_4d, FermionField &wout_5d, const FermionField &evec, const Real &eval);
void makeHighModeV(FermionField &vout, const FermionField &noise);
void makeHighModeV5D(FermionField &vout_4d, FermionField &vout_5d, const FermionField &noise_5d);
void makeHighModeW(FermionField &wout, const FermionField &noise);
void makeHighModeW5D(FermionField &vout_5d, FermionField &wout_5d, const FermionField &noise_5d);
private:
FMat &action_;
Solver &solver_;
GridBase *fGrid_, *frbGrid_, *gGrid_;
bool is5d_;
FermionField src_o_, sol_e_, sol_o_, tmp_, tmp5_;
SchurDiagTwoOperator<FMat, FermionField> op_;
};
template <typename FImpl>
A2AVectorsSchurDiagTwo<FImpl>::A2AVectorsSchurDiagTwo(FMat &action, Solver &solver)
: action_(action)
, solver_(solver)
, fGrid_(action_.FermionGrid())
, frbGrid_(action_.FermionRedBlackGrid())
, gGrid_(action_.GaugeGrid())
, src_o_(frbGrid_)
, sol_e_(frbGrid_)
, sol_o_(frbGrid_)
, tmp_(frbGrid_)
, tmp5_(fGrid_)
, op_(action_)
{}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeV(FermionField &vout, const FermionField &evec, const Real &eval)
{
src_o_ = evec;
src_o_.checkerboard = Odd;
pickCheckerboard(Even, sol_e_, vout);
pickCheckerboard(Odd, sol_o_, vout);
/////////////////////////////////////////////////////
// v_ie = -(1/eval_i) * MeeInv Meo MooInv evec_i
/////////////////////////////////////////////////////
action_.MooeeInv(src_o_, tmp_);
assert(tmp_.checkerboard == Odd);
action_.Meooe(tmp_, sol_e_);
assert(sol_e_.checkerboard == Even);
action_.MooeeInv(sol_e_, tmp_);
assert(tmp_.checkerboard == Even);
sol_e_ = (-1.0 / eval) * tmp_;
assert(sol_e_.checkerboard == Even);
/////////////////////////////////////////////////////
// v_io = (1/eval_i) * MooInv evec_i
/////////////////////////////////////////////////////
action_.MooeeInv(src_o_, tmp_);
assert(tmp_.checkerboard == Odd);
sol_o_ = (1.0 / eval) * tmp_;
assert(sol_o_.checkerboard == Odd);
setCheckerboard(vout, sol_e_);
assert(sol_e_.checkerboard == Even);
setCheckerboard(vout, sol_o_);
assert(sol_o_.checkerboard == Odd);
}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeV5D(FermionField &vout_4d, FermionField &vout_5d, const FermionField &evec, const Real &eval)
{
makeLowModeV(vout_5d, evec, eval);
action_.ExportPhysicalFermionSolution(vout_5d, vout_4d);
}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeW(FermionField &wout, const FermionField &evec, const Real &eval)
{
src_o_ = evec;
src_o_.checkerboard = Odd;
pickCheckerboard(Even, sol_e_, wout);
pickCheckerboard(Odd, sol_o_, wout);
/////////////////////////////////////////////////////
// w_ie = - MeeInvDag MoeDag Doo evec_i
/////////////////////////////////////////////////////
op_.Mpc(src_o_, tmp_);
assert(tmp_.checkerboard == Odd);
action_.MeooeDag(tmp_, sol_e_);
assert(sol_e_.checkerboard == Even);
action_.MooeeInvDag(sol_e_, tmp_);
assert(tmp_.checkerboard == Even);
sol_e_ = (-1.0) * tmp_;
/////////////////////////////////////////////////////
// w_io = Doo evec_i
/////////////////////////////////////////////////////
op_.Mpc(src_o_, sol_o_);
assert(sol_o_.checkerboard == Odd);
setCheckerboard(wout, sol_e_);
assert(sol_e_.checkerboard == Even);
setCheckerboard(wout, sol_o_);
assert(sol_o_.checkerboard == Odd);
}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeLowModeW5D(FermionField &wout_4d,
FermionField &wout_5d,
const FermionField &evec,
const Real &eval)
{
makeLowModeW(tmp5_, evec, eval);
action_.DminusDag(tmp5_, wout_5d);
action_.ExportPhysicalFermionSource(wout_5d, wout_4d);
}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeV(FermionField &vout,
const FermionField &noise)
{
solver_(vout, noise);
}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeV5D(FermionField &vout_4d,
FermionField &vout_5d,
const FermionField &noise)
{
if (noise._grid->Dimensions() == fGrid_->Dimensions() - 1)
{
action_.ImportPhysicalFermionSource(noise, tmp5_);
}
else
{
tmp5_ = noise;
}
makeHighModeV(vout_5d, tmp5_);
action_.ExportPhysicalFermionSolution(vout_5d, vout_4d);
}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeW(FermionField &wout,
const FermionField &noise)
{
wout = noise;
}
template <typename FImpl>
void A2AVectorsSchurDiagTwo<FImpl>::makeHighModeW5D(FermionField &wout_4d,
FermionField &wout_5d,
const FermionField &noise)
{
if (noise._grid->Dimensions() == fGrid_->Dimensions() - 1)
{
action_.ImportUnphysicalFermion(noise, wout_5d);
wout_4d = noise;
}
else
{
wout_5d = noise;
action_.ExportPhysicalFermionSource(wout_5d, wout_4d);
}
}
// A2AVectorsSchurDiagTwo(const int Nl, const int Nh,
// std::vector<FermionField> &v,
// std::vector<FermionField> &w,
// const bool _return_5d)
// : Nl(_Nl), Nh(_Nh),
// return_5d(_return_5d)
// {
// if (!return_5d)
// {
// init_resize(1, Nl + Nh);
// }
// else
// {
// init_resize(Nl + Nh, Nl + Nh);
// }
// }
// void init_resize(const size_t size_5d, const size_t size_4d,
// GridBase *grid_5d, GridBase *grid_4d)
// {
// w_5d.resize(size_5d, grid_5d);
// v_5d.resize(size_5d, grid_5d);
// w_4d.resize(size_4d, grid_4d);
// v_4d.resize(size_4d, grid_4d);
// }
// int get_Nh(void) const
// {
// return Nh;
// }
// int get_Nl(void) const
// {
// return Nl;
// }
// void low_modes(int il, const Field &evec, const Real &eval, Matrix &action)
// {
// int i5d;
// i5d = 0;
// if (return_5d) i5d = il;
// this->low_mode_v(v_5d[i5d], v_4d[il], evec, eval, action);
// this->low_mode_w(w_5d[i5d], w_4d[il], evec, eval, action);
// }
// void high_modes(int ih, Field &source_5d, Field &w_source_5d,
// Field &source_4d, Solver &solver)
// {
// int i5d;
// i5d = 0;
// if (return_5d) i5d = ih + Nl;
// this->high_mode_v(source_5d, v_5d[i5d], v_4d[ih + Nl], solver);
// this->high_mode_w(w_source_5d, source_4d, w_5d[i5d], w_4d[ih + Nl]);
// }
// void return_v(int i, Field &vout_5d, Field &vout_4d)
// {
// vout_4d = v_4d[i];
// if (!(return_5d)) i = 0;
// vout_5d = v_5d[i];
// }
// void return_w(int i, Field &wout_5d, Field &wout_4d)
// {
// wout_4d = w_4d[i];
// if (!(return_5d)) i = 0;
// wout_5d = w_5d[i];
// }
// void low_mode_v(Field &vout_5d, Field &vout_4d, const Field &evec,
// const Real &eval, Matrix &action)
// {
// GridBase *grid = action.RedBlackGrid();
// Field src_o(grid);
// Field sol_e(grid);
// Field sol_o(grid);
// Field tmp(grid);
// src_o = evec;
// src_o.checkerboard = Odd;
// pickCheckerboard(Even, sol_e, vout_5d);
// pickCheckerboard(Odd, sol_o, vout_5d);
// /////////////////////////////////////////////////////
// // v_ie = -(1/eval_i) * MeeInv Meo MooInv evec_i
// /////////////////////////////////////////////////////
// action.MooeeInv(src_o, tmp);
// assert(tmp.checkerboard == Odd);
// action.Meooe(tmp, sol_e);
// assert(sol_e.checkerboard == Even);
// action.MooeeInv(sol_e, tmp);
// assert(tmp.checkerboard == Even);
// sol_e = (-1.0 / eval) * tmp;
// assert(sol_e.checkerboard == Even);
// /////////////////////////////////////////////////////
// // v_io = (1/eval_i) * MooInv evec_i
// /////////////////////////////////////////////////////
// action.MooeeInv(src_o, tmp);
// assert(tmp.checkerboard == Odd);
// sol_o = (1.0 / eval) * tmp;
// assert(sol_o.checkerboard == Odd);
// setCheckerboard(vout_5d, sol_e);
// assert(sol_e.checkerboard == Even);
// setCheckerboard(vout_5d, sol_o);
// assert(sol_o.checkerboard == Odd);
// action.ExportPhysicalFermionSolution(vout_5d, vout_4d);
// }
// void low_mode_w(Field &wout_5d, Field &wout_4d, const Field &evec,
// const Real &eval, Matrix &action)
// {
// GridBase *grid = action.RedBlackGrid();
// SchurDiagTwoOperator<Matrix, Field> _HermOpEO(action);
// Field src_o(grid);
// Field sol_e(grid);
// Field sol_o(grid);
// Field tmp(grid);
// GridBase *fgrid = action.Grid();
// Field tmp_wout(fgrid);
// src_o = evec;
// src_o.checkerboard = Odd;
// pickCheckerboard(Even, sol_e, tmp_wout);
// pickCheckerboard(Odd, sol_o, tmp_wout);
// /////////////////////////////////////////////////////
// // w_ie = - MeeInvDag MoeDag Doo evec_i
// /////////////////////////////////////////////////////
// _HermOpEO.Mpc(src_o, tmp);
// assert(tmp.checkerboard == Odd);
// action.MeooeDag(tmp, sol_e);
// assert(sol_e.checkerboard == Even);
// action.MooeeInvDag(sol_e, tmp);
// assert(tmp.checkerboard == Even);
// sol_e = (-1.0) * tmp;
// /////////////////////////////////////////////////////
// // w_io = Doo evec_i
// /////////////////////////////////////////////////////
// _HermOpEO.Mpc(src_o, sol_o);
// assert(sol_o.checkerboard == Odd);
// setCheckerboard(tmp_wout, sol_e);
// assert(sol_e.checkerboard == Even);
// setCheckerboard(tmp_wout, sol_o);
// assert(sol_o.checkerboard == Odd);
// action.DminusDag(tmp_wout, wout_5d);
// action.ExportPhysicalFermionSource(wout_5d, wout_4d);
// }
// void high_mode_v(const Field &source, Field &vout_5d, Field &vout_4d,
// Matrix &action, Solver &solver)
// {
// GridBase *fgrid = action.Grid();
// solver(vout_5d, source); // Note: solver is solver(out, in)
// action.ExportPhysicalFermionSolution(vout_5d, vout_4d);
// }
// void high_mode_w(const Field &w_source_5d, const Field &source_4d,
// Field &wout_5d, Field &wout_4d)
// {
// wout_5d = w_source_5d;
// wout_4d = source_4d;
// }
// TODO: A2A for coarse eigenvectors
// template <class FineField, class CoarseField, class Matrix, class Solver>
// class A2ALMSchurDiagTwoCoarse : public A2AModesSchurDiagTwo<FineField, Matrix, Solver>
// {
// private:
// const std::vector<FineField> &subspace;
// const std::vector<CoarseField> &evec_coarse;
// const std::vector<RealD> &eval_coarse;
// Matrix &action;
// public:
// A2ALMSchurDiagTwoCoarse(const std::vector<FineField> &_subspace, const std::vector<CoarseField> &_evec_coarse, const std::vector<RealD> &_eval_coarse, Matrix &_action)
// : subspace(_subspace), evec_coarse(_evec_coarse), eval_coarse(_eval_coarse), action(_action){};
// void operator()(int i, FineField &vout, FineField &wout)
// {
// FineField prom_evec(subspace[0]._grid);
// blockPromote(evec_coarse[i], prom_evec, subspace);
// this->low_mode_v(action, prom_evec, eval_coarse[i], vout);
// this->low_mode_w(action, prom_evec, eval_coarse[i], wout);
// }
// };
END_HADRONS_NAMESPACE
#endif // A2A_Vectors_hpp_
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