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@ -26,164 +26,163 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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See the full license in the file "LICENSE" in the top level distribution
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directory
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*************************************************************************************/
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/* END LEGAL */
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/* END LEGAL */
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#ifndef QCD_PSEUDOFERMION_TWO_FLAVOUR_EVEN_ODD_H
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#define QCD_PSEUDOFERMION_TWO_FLAVOUR_EVEN_ODD_H
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namespace Grid {
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namespace QCD {
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////////////////////////////////////////////////////////////////////////
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// Two flavour pseudofermion action for any EO prec dop
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////////////////////////////////////////////////////////////////////////
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template <class Impl>
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class TwoFlavourEvenOddPseudoFermionAction
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: public Action<typename Impl::GaugeField> {
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public:
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INHERIT_IMPL_TYPES(Impl);
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private:
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FermionOperator<Impl> &FermOp; // the basic operator
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OperatorFunction<FermionField> &DerivativeSolver;
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OperatorFunction<FermionField> &ActionSolver;
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FermionField PhiOdd; // the pseudo fermion field for this trajectory
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FermionField PhiEven; // the pseudo fermion field for this trajectory
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public:
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/////////////////////////////////////////////////
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// Pass in required objects.
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/////////////////////////////////////////////////
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TwoFlavourEvenOddPseudoFermionAction(FermionOperator<Impl> &Op,
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OperatorFunction<FermionField> &DS,
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OperatorFunction<FermionField> &AS)
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: FermOp(Op),
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DerivativeSolver(DS),
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ActionSolver(AS),
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PhiEven(Op.FermionRedBlackGrid()),
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PhiOdd(Op.FermionRedBlackGrid())
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{};
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NAMESPACE_BEGIN(Grid);
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virtual std::string action_name(){return "TwoFlavourEvenOddPseudoFermionAction";}
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////////////////////////////////////////////////////////////////////////
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// Two flavour pseudofermion action for any EO prec dop
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////////////////////////////////////////////////////////////////////////
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template <class Impl>
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class TwoFlavourEvenOddPseudoFermionAction
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: public Action<typename Impl::GaugeField> {
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public:
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INHERIT_IMPL_TYPES(Impl);
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private:
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FermionOperator<Impl> &FermOp; // the basic operator
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OperatorFunction<FermionField> &DerivativeSolver;
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OperatorFunction<FermionField> &ActionSolver;
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FermionField PhiOdd; // the pseudo fermion field for this trajectory
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FermionField PhiEven; // the pseudo fermion field for this trajectory
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public:
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/////////////////////////////////////////////////
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// Pass in required objects.
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/////////////////////////////////////////////////
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TwoFlavourEvenOddPseudoFermionAction(FermionOperator<Impl> &Op,
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OperatorFunction<FermionField> &DS,
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OperatorFunction<FermionField> &AS)
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: FermOp(Op),
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DerivativeSolver(DS),
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ActionSolver(AS),
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PhiEven(Op.FermionRedBlackGrid()),
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PhiOdd(Op.FermionRedBlackGrid())
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{};
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virtual std::string action_name(){return "TwoFlavourEvenOddPseudoFermionAction";}
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virtual std::string LogParameters(){
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std::stringstream sstream;
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sstream << GridLogMessage << "["<<action_name()<<"] has no parameters" << std::endl;
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return sstream.str();
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}
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virtual std::string LogParameters(){
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std::stringstream sstream;
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sstream << GridLogMessage << "["<<action_name()<<"] has no parameters" << std::endl;
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return sstream.str();
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}
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//////////////////////////////////////////////////////////////////////////////////////
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// Push the gauge field in to the dops. Assume any BC's and smearing already applied
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//////////////////////////////////////////////////////////////////////////////////////
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virtual void refresh(const GaugeField &U, GridParallelRNG& pRNG) {
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//////////////////////////////////////////////////////////////////////////////////////
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// Push the gauge field in to the dops. Assume any BC's and smearing already applied
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//////////////////////////////////////////////////////////////////////////////////////
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virtual void refresh(const GaugeField &U, GridParallelRNG& pRNG) {
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// P(phi) = e^{- phi^dag (MpcdagMpc)^-1 phi}
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// Phi = McpDag eta
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// P(eta) = e^{- eta^dag eta}
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//
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// e^{x^2/2 sig^2} => sig^2 = 0.5.
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// P(phi) = e^{- phi^dag (MpcdagMpc)^-1 phi}
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// Phi = McpDag eta
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// P(eta) = e^{- eta^dag eta}
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//
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// e^{x^2/2 sig^2} => sig^2 = 0.5.
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RealD scale = std::sqrt(0.5);
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RealD scale = std::sqrt(0.5);
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FermionField eta (FermOp.FermionGrid());
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FermionField etaOdd (FermOp.FermionRedBlackGrid());
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FermionField etaEven(FermOp.FermionRedBlackGrid());
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FermionField eta (FermOp.FermionGrid());
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FermionField etaOdd (FermOp.FermionRedBlackGrid());
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FermionField etaEven(FermOp.FermionRedBlackGrid());
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gaussian(pRNG,eta);
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pickCheckerboard(Even,etaEven,eta);
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pickCheckerboard(Odd,etaOdd,eta);
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gaussian(pRNG,eta);
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pickCheckerboard(Even,etaEven,eta);
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pickCheckerboard(Odd,etaOdd,eta);
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FermOp.ImportGauge(U);
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SchurDifferentiableOperator<Impl> PCop(FermOp);
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FermOp.ImportGauge(U);
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SchurDifferentiableOperator<Impl> PCop(FermOp);
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PCop.MpcDag(etaOdd,PhiOdd);
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PCop.MpcDag(etaOdd,PhiOdd);
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FermOp.MooeeDag(etaEven,PhiEven);
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FermOp.MooeeDag(etaEven,PhiEven);
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PhiOdd =PhiOdd*scale;
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PhiEven=PhiEven*scale;
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PhiOdd =PhiOdd*scale;
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PhiEven=PhiEven*scale;
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};
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};
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//////////////////////////////////////////////////////
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// S = phi^dag (Mdag M)^-1 phi (odd)
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// + phi^dag (Mdag M)^-1 phi (even)
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//////////////////////////////////////////////////////
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virtual RealD S(const GaugeField &U) {
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//////////////////////////////////////////////////////
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// S = phi^dag (Mdag M)^-1 phi (odd)
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// + phi^dag (Mdag M)^-1 phi (even)
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//////////////////////////////////////////////////////
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virtual RealD S(const GaugeField &U) {
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FermOp.ImportGauge(U);
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FermOp.ImportGauge(U);
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FermionField X(FermOp.FermionRedBlackGrid());
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FermionField Y(FermOp.FermionRedBlackGrid());
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FermionField X(FermOp.FermionRedBlackGrid());
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FermionField Y(FermOp.FermionRedBlackGrid());
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SchurDifferentiableOperator<Impl> PCop(FermOp);
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SchurDifferentiableOperator<Impl> PCop(FermOp);
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X=zero;
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ActionSolver(PCop,PhiOdd,X);
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PCop.Op(X,Y);
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RealD action = norm2(Y);
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X=zero;
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ActionSolver(PCop,PhiOdd,X);
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PCop.Op(X,Y);
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RealD action = norm2(Y);
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// The EE factorised block; normally can replace with zero if det is constant (gauge field indept)
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// Only really clover term that creates this.
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FermOp.MooeeInvDag(PhiEven,Y);
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action = action + norm2(Y);
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// The EE factorised block; normally can replace with zero if det is constant (gauge field indept)
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// Only really clover term that creates this.
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FermOp.MooeeInvDag(PhiEven,Y);
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action = action + norm2(Y);
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std::cout << GridLogMessage << "Pseudofermion EO action "<<action<<std::endl;
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return action;
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};
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std::cout << GridLogMessage << "Pseudofermion EO action "<<action<<std::endl;
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return action;
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};
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//////////////////////////////////////////////////////
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//
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// dS/du = - phi^dag (Mdag M)^-1 [ Mdag dM + dMdag M ] (Mdag M)^-1 phi
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// = - phi^dag M^-1 dM (MdagM)^-1 phi - phi^dag (MdagM)^-1 dMdag dM (Mdag)^-1 phi
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//
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// = - Ydag dM X - Xdag dMdag Y
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//
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//////////////////////////////////////////////////////
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virtual void deriv(const GaugeField &U,GaugeField & dSdU) {
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FermOp.ImportGauge(U);
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//////////////////////////////////////////////////////
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//
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// dS/du = - phi^dag (Mdag M)^-1 [ Mdag dM + dMdag M ] (Mdag M)^-1 phi
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// = - phi^dag M^-1 dM (MdagM)^-1 phi - phi^dag (MdagM)^-1 dMdag dM (Mdag)^-1 phi
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//
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// = - Ydag dM X - Xdag dMdag Y
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//
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//////////////////////////////////////////////////////
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virtual void deriv(const GaugeField &U,GaugeField & dSdU) {
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FermOp.ImportGauge(U);
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FermionField X(FermOp.FermionRedBlackGrid());
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FermionField Y(FermOp.FermionRedBlackGrid());
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GaugeField tmp(FermOp.GaugeGrid());
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FermionField X(FermOp.FermionRedBlackGrid());
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FermionField Y(FermOp.FermionRedBlackGrid());
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GaugeField tmp(FermOp.GaugeGrid());
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SchurDifferentiableOperator<Impl> Mpc(FermOp);
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SchurDifferentiableOperator<Impl> Mpc(FermOp);
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// Our conventions really make this UdSdU; We do not differentiate wrt Udag here.
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// So must take dSdU - adj(dSdU) and left multiply by mom to get dS/dt.
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// Our conventions really make this UdSdU; We do not differentiate wrt Udag here.
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// So must take dSdU - adj(dSdU) and left multiply by mom to get dS/dt.
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X=zero;
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DerivativeSolver(Mpc,PhiOdd,X);
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Mpc.Mpc(X,Y);
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Mpc.MpcDeriv(tmp , Y, X ); dSdU=tmp;
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Mpc.MpcDagDeriv(tmp , X, Y); dSdU=dSdU+tmp;
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X=zero;
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DerivativeSolver(Mpc,PhiOdd,X);
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Mpc.Mpc(X,Y);
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Mpc.MpcDeriv(tmp , Y, X ); dSdU=tmp;
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Mpc.MpcDagDeriv(tmp , X, Y); dSdU=dSdU+tmp;
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// Treat the EE case. (MdagM)^-1 = Minv Minvdag
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// Deriv defaults to zero.
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// FermOp.MooeeInvDag(PhiOdd,Y);
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// FermOp.MooeeInv(Y,X);
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// FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
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// FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
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// Treat the EE case. (MdagM)^-1 = Minv Minvdag
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// Deriv defaults to zero.
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// FermOp.MooeeInvDag(PhiOdd,Y);
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// FermOp.MooeeInv(Y,X);
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// FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
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// FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
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assert(FermOp.ConstEE() == 1);
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assert(FermOp.ConstEE() == 1);
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/*
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FermOp.MooeeInvDag(PhiOdd,Y);
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FermOp.MooeeInv(Y,X);
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FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
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FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
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*/
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/*
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FermOp.MooeeInvDag(PhiOdd,Y);
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FermOp.MooeeInv(Y,X);
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FermOp.MeeDeriv(tmp , Y, X,DaggerNo ); dSdU=tmp;
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FermOp.MeeDeriv(tmp , X, Y,DaggerYes); dSdU=dSdU+tmp;
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*/
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//dSdU = Ta(dSdU);
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//dSdU = Ta(dSdU);
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};
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};
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};
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};
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}
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}
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NAMESPACE_END(Grid);
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#endif
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