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add projection on sp2n algebra
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Alessandro Lupo
parent
4d8ae6221c
commit
4044536eea
@ -140,8 +140,38 @@ public:
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PokeIndex<LorentzIndex>(P, Pmu, mu);
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}
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}
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static inline Field projectForce(Field &P) { return Ta(P); }
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static inline Field projectForce(Field &P)
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{
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if (isSp2n == true)
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{
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P = Ta(P);
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const int nsp = Nc / 2;
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Sp<nsp>::iSp2nMatrix<Complex> gen;
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auto Psum = P;
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Psum = Zero();
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for (int a = 0; a < Sp<nsp>::AlgebraDimension; a++)
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{
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Sp<nsp>::generator(a, gen);
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auto coeff = 2. * trace(P * gen);
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Psum += coeff * gen;
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}
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return Psum;
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} else
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{
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return Ta(P);
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}
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}
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static inline void update_field(Field& P, Field& U, double ep){
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//static std::chrono::duration<double> diff;
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@ -137,6 +137,9 @@ accelerator_inline iMatrix<vtype,N> ProjectOnGroup(const iMatrix<vtype,N> &arg)
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// re-do for sp2n
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// Ta cannot be defined here for Sp2n because I need the generators from the Sp class
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// It is defined in gauge impl types
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template<class vtype> accelerator_inline iScalar<vtype> ProjectOnSpGroup(const iScalar<vtype>&r)
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{
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iScalar<vtype> ret;
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@ -217,88 +220,6 @@ accelerator_inline iMatrix<vtype,N> ProjectOnSpGroup(const iMatrix<vtype,N> &arg
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return ret;
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}
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/*
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template<class vtype,int N, typename std::enable_if< GridTypeMapper<vtype>::TensorLevel == 0 >::type * =nullptr>
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accelerator_inline iMatrix<vtype,N> ProjectOnSpGroup(const iMatrix<vtype,N> &arg)
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{
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// need a check for the group type?
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iMatrix<vtype,N> ret(arg);
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vtype nrm;
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vtype inner;
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for(int c1=0;c1<N/2;c1++){
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// Normalises row c1
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zeroit(inner);
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for(int c2=0;c2<N;c2++)
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inner += innerProduct(ret._internal[c1][c2],ret._internal[c1][c2]);
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nrm = sqrt(inner);
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nrm = 1.0/nrm;
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for(int c2=0;c2<N;c2++)
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ret._internal[c1][c2]*= nrm;
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// Compute row c1+N2/2: c1+N/2 = - \Omega c1*
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for(int c2=0;c2<N/2;c2++)
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ret._internal[c1+N/2][c2+N/2] = conjugate(ret._internal[c1][c2]); // lupo: c1,c2? dont we want c1 c2+N/2
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for(int c2=N/2;c2<N;c2++)
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ret._internal[c1+N/2][c2-N/2] = -conjugate(ret._internal[c1][c2]);
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// Remove c1 from rows c1+1...N/2-1
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for (int b=c1+1; b<N/2; ++b){
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decltype(ret._internal[b][b]*ret._internal[b][b]) pr;
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zeroit(pr);
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for(int c=0; c<N; ++c)
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pr += conjugate(ret._internal[c1][c])*ret._internal[b][c];
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for(int c=0; c<N; ++c){
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ret._internal[b][c] -= pr * ret._internal[c1][c];
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}
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}
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// Remove c1+N/2 from rows c1+1...N/2-1
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for (int b=c1+1; b<N; ++b){
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decltype(ret._internal[b][b]*ret._internal[b][b]) pr;
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zeroit(pr);
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for(int c=0; c<N; ++c)
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pr += conjugate(ret._internal[c1+N/2][c])*ret._internal[b][c];
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for(int c=0; c<N; ++c){
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ret._internal[b][c] -= pr * ret._internal[c1+N/2][c];
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}
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}
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} //end c1 0, ... N/2-1 loop
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// Compute the last row
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{
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// Normalise last row
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int c1 = N/2-1;
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zeroit(inner);
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for(int c2=0;c2<N;c2++)
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inner += innerProduct(ret._internal[c1][c2],ret._internal[c1][c2]);
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nrm = sqrt(inner);
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nrm = 1.0/nrm;
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for(int c2=0;c2<N;c2++)
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ret._internal[c1][c2]*= nrm;
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// Compute row cN-1+N2/2: cN-1+N/2 = - \Omega cN-1*
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for(int c2=0;c2<N/2;c2++)
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ret._internal[c1+N/2][c2+N/2] = conjugate(ret._internal[c1][c2]);
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for(int c2=N/2;c2<N;c2++)
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ret._internal[c1+N/2][c2-N/2] = -conjugate(ret._internal[c1][c2]);
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}
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// assuming the determinant is ok
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return ret;
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}*/
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NAMESPACE_END(Grid);
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#endif
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100
tests/sp2n/Test_hmc_Sp_pureGaugeWilson.cc
Normal file
100
tests/sp2n/Test_hmc_Sp_pureGaugeWilson.cc
Normal file
@ -0,0 +1,100 @@
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/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./tests/Test_hmc_WilsonFermionGauge.cc
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Copyright (C) 2015
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Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
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Author: neo <cossu@post.kek.jp>
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Author: Guido Cossu <guido.cossu@ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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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#include <Grid/Grid.h>
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int main(int argc, char **argv)
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{
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using namespace Grid;
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Grid_init(&argc, &argv);
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GridLogLayout();
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typedef GenericSp2nHMCRunner<MinimumNorm2> HMCWrapper;
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HMCWrapper TheHMC;
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TheHMC.Resources.AddFourDimGrid("gauge");
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// Checkpointer definition
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CheckpointerParameters CPparams;
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CPparams.config_prefix = "ckpoint_lat";
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CPparams.rng_prefix = "ckpoint_rng";
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CPparams.saveInterval = 5;
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CPparams.format = "IEEE64BIG";
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TheHMC.Resources.LoadNerscCheckpointer(CPparams);
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RNGModuleParameters RNGpar;
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RNGpar.serial_seeds = "12 22 32 42 52";
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RNGpar.parallel_seeds = "76 77 87 79 70";
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TheHMC.Resources.SetRNGSeeds(RNGpar);
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// Construct observables
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// here there is too much indirection
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typedef PlaquetteMod<HMCWrapper::ImplPolicy> PlaqObs;
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typedef TopologicalChargeMod<HMCWrapper::ImplPolicy> QObs;
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TheHMC.Resources.AddObservable<PlaqObs>();
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TopologyObsParameters TopParams;
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TopParams.interval = 5;
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TopParams.do_smearing = true;
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TopParams.Smearing.steps = 200;
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TopParams.Smearing.step_size = 0.01;
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TopParams.Smearing.meas_interval = 50;
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TopParams.Smearing.maxTau = 2.0;
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TheHMC.Resources.AddObservable<QObs>(TopParams);
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//////////////////////////////////////////////
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/////////////////////////////////////////////////////////////
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// Collect actions, here use more encapsulation
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// need wrappers of the fermionic classes
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// that have a complex construction
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// standard
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RealD beta = 8.0 ;
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SymplWilsonGaugeActionR Waction(beta);
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ActionLevel<HMCWrapper::Field> Level1(1);
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Level1.push_back(&Waction);
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//Level1.push_back(WGMod.getPtr());
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TheHMC.TheAction.push_back(Level1);
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/////////////////////////////////////////////////////////////
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// HMC parameters are serialisable
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TheHMC.Parameters.MD.MDsteps = 10;
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TheHMC.Parameters.MD.trajL = 1.0;
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TheHMC.ReadCommandLine(argc, argv); // these can be parameters from file
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TheHMC.Run(); // no smearing
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Grid_finalize();
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} // main
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