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Namespace QCD gone
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paboyle
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@ -24,125 +24,123 @@
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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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*************************************************************************************/
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/* END LEGAL */
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#ifndef SCALAR_INT_ACTION_H
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#define SCALAR_INT_ACTION_H
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// Note: this action can completely absorb the ScalarAction for real float fields
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// use the scalarObjs to generalise the structure
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namespace Grid {
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// FIXME drop the QCD namespace everywhere here
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NAMESPACE_BEGIN(Grid);
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template <class Impl, int Ndim >
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class ScalarInteractionAction : public QCD::Action<typename Impl::Field> {
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public:
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INHERIT_FIELD_TYPES(Impl);
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private:
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RealD mass_square;
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RealD lambda;
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template <class Impl, int Ndim >
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class ScalarInteractionAction : public QCD::Action<typename Impl::Field> {
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public:
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INHERIT_FIELD_TYPES(Impl);
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private:
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RealD mass_square;
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RealD lambda;
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typedef typename Field::vector_object vobj;
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typedef CartesianStencil<vobj,vobj> Stencil;
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typedef typename Field::vector_object vobj;
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typedef CartesianStencil<vobj,vobj> Stencil;
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SimpleCompressor<vobj> compressor;
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int npoint = 2*Ndim;
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std::vector<int> directions;// = {0,1,2,3,0,1,2,3}; // forcing 4 dimensions
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std::vector<int> displacements;// = {1,1,1,1, -1,-1,-1,-1};
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SimpleCompressor<vobj> compressor;
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int npoint = 2*Ndim;
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std::vector<int> directions;// = {0,1,2,3,0,1,2,3}; // forcing 4 dimensions
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std::vector<int> displacements;// = {1,1,1,1, -1,-1,-1,-1};
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public:
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public:
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ScalarInteractionAction(RealD ms, RealD l) : mass_square(ms), lambda(l), displacements(2*Ndim,0), directions(2*Ndim,0){
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for (int mu = 0 ; mu < Ndim; mu++){
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directions[mu] = mu; directions[mu+Ndim] = mu;
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displacements[mu] = 1; displacements[mu+Ndim] = -1;
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}
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ScalarInteractionAction(RealD ms, RealD l) : mass_square(ms), lambda(l), displacements(2*Ndim,0), directions(2*Ndim,0){
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for (int mu = 0 ; mu < Ndim; mu++){
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directions[mu] = mu; directions[mu+Ndim] = mu;
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displacements[mu] = 1; displacements[mu+Ndim] = -1;
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}
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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 << "[ScalarAction] lambda : " << lambda << std::endl;
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sstream << GridLogMessage << "[ScalarAction] mass_square : " << mass_square << 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 << "[ScalarAction] lambda : " << lambda << std::endl;
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sstream << GridLogMessage << "[ScalarAction] mass_square : " << mass_square << std::endl;
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return sstream.str();
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}
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virtual std::string action_name() {return "ScalarAction";}
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virtual std::string action_name() {return "ScalarAction";}
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virtual void refresh(const Field &U, GridParallelRNG &pRNG) {}
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virtual void refresh(const Field &U, GridParallelRNG &pRNG) {}
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virtual RealD S(const Field &p) {
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assert(p._grid->Nd() == Ndim);
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static Stencil phiStencil(p._grid, npoint, 0, directions, displacements);
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phiStencil.HaloExchange(p, compressor);
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Field action(p._grid), pshift(p._grid), phisquared(p._grid);
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phisquared = p*p;
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action = (2.0*Ndim + mass_square)*phisquared - lambda/24.*phisquared*phisquared;
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for (int mu = 0; mu < Ndim; mu++) {
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// pshift = Cshift(p, mu, +1); // not efficient, implement with stencils
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parallel_for (int i = 0; i < p._grid->oSites(); i++) {
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int permute_type;
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StencilEntry *SE;
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vobj temp2;
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const vobj *temp, *t_p;
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virtual RealD S(const Field &p) {
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assert(p._grid->Nd() == Ndim);
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static Stencil phiStencil(p._grid, npoint, 0, directions, displacements);
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phiStencil.HaloExchange(p, compressor);
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Field action(p._grid), pshift(p._grid), phisquared(p._grid);
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phisquared = p*p;
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action = (2.0*Ndim + mass_square)*phisquared - lambda/24.*phisquared*phisquared;
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for (int mu = 0; mu < Ndim; mu++) {
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// pshift = Cshift(p, mu, +1); // not efficient, implement with stencils
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parallel_for (int i = 0; i < p._grid->oSites(); i++) {
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int permute_type;
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StencilEntry *SE;
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vobj temp2;
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const vobj *temp, *t_p;
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SE = phiStencil.GetEntry(permute_type, mu, i);
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t_p = &p._odata[i];
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if ( SE->_is_local ) {
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temp = &p._odata[SE->_offset];
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if ( SE->_permute ) {
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permute(temp2, *temp, permute_type);
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action._odata[i] -= temp2*(*t_p) + (*t_p)*temp2;
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} else {
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action._odata[i] -= (*temp)*(*t_p) + (*t_p)*(*temp);
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}
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SE = phiStencil.GetEntry(permute_type, mu, i);
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t_p = &p._odata[i];
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if ( SE->_is_local ) {
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temp = &p._odata[SE->_offset];
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if ( SE->_permute ) {
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permute(temp2, *temp, permute_type);
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action._odata[i] -= temp2*(*t_p) + (*t_p)*temp2;
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} else {
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action._odata[i] -= phiStencil.CommBuf()[SE->_offset]*(*t_p) + (*t_p)*phiStencil.CommBuf()[SE->_offset];
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action._odata[i] -= (*temp)*(*t_p) + (*t_p)*(*temp);
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}
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} else {
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action._odata[i] -= phiStencil.CommBuf()[SE->_offset]*(*t_p) + (*t_p)*phiStencil.CommBuf()[SE->_offset];
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}
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// action -= pshift*p + p*pshift;
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}
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// NB the trace in the algebra is normalised to 1/2
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// minus sign coming from the antihermitian fields
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return -(TensorRemove(sum(trace(action)))).real();
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};
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// action -= pshift*p + p*pshift;
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}
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// NB the trace in the algebra is normalised to 1/2
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// minus sign coming from the antihermitian fields
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return -(TensorRemove(sum(trace(action)))).real();
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};
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virtual void deriv(const Field &p, Field &force) {
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assert(p._grid->Nd() == Ndim);
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force = (2.0*Ndim + mass_square)*p - lambda/12.*p*p*p;
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// move this outside
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static Stencil phiStencil(p._grid, npoint, 0, directions, displacements);
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phiStencil.HaloExchange(p, compressor);
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virtual void deriv(const Field &p, Field &force) {
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assert(p._grid->Nd() == Ndim);
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force = (2.0*Ndim + mass_square)*p - lambda/12.*p*p*p;
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// move this outside
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static Stencil phiStencil(p._grid, npoint, 0, directions, displacements);
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phiStencil.HaloExchange(p, compressor);
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//for (int mu = 0; mu < QCD::Nd; mu++) force -= Cshift(p, mu, -1) + Cshift(p, mu, 1);
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for (int point = 0; point < npoint; point++) {
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parallel_for (int i = 0; i < p._grid->oSites(); i++) {
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const vobj *temp;
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vobj temp2;
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int permute_type;
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StencilEntry *SE;
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SE = phiStencil.GetEntry(permute_type, point, i);
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//for (int mu = 0; mu < QCD::Nd; mu++) force -= Cshift(p, mu, -1) + Cshift(p, mu, 1);
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for (int point = 0; point < npoint; point++) {
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parallel_for (int i = 0; i < p._grid->oSites(); i++) {
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const vobj *temp;
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vobj temp2;
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int permute_type;
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StencilEntry *SE;
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SE = phiStencil.GetEntry(permute_type, point, i);
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if ( SE->_is_local ) {
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temp = &p._odata[SE->_offset];
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if ( SE->_permute ) {
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permute(temp2, *temp, permute_type);
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force._odata[i] -= temp2;
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} else {
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force._odata[i] -= *temp;
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}
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if ( SE->_is_local ) {
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temp = &p._odata[SE->_offset];
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if ( SE->_permute ) {
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permute(temp2, *temp, permute_type);
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force._odata[i] -= temp2;
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} else {
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force._odata[i] -= phiStencil.CommBuf()[SE->_offset];
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force._odata[i] -= *temp;
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}
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} else {
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force._odata[i] -= phiStencil.CommBuf()[SE->_offset];
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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 Grid
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NAMESPACE_END(Grid);
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#endif // SCALAR_INT_ACTION_H
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