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HMC scalar test: magnetisation measurement

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This commit is contained in:
Antonin Portelli 2017-05-11 11:40:44 +01:00
parent 43c817cc67
commit d1ece74137
1 changed files with 49 additions and 5 deletions
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54
tests/hmc/Test_hmc_ScalarActionNxN.cc
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@ -39,11 +39,50 @@ class ScalarActionParameters : Serializable {
}
};
}
using namespace Grid;
using namespace Grid::QCD;
template <class Impl>
class MagLogger : public HmcObservable<typename Impl::Field> {
public:
typedef typename Impl::Field Field;
typedef typename Impl::Simd::scalar_type Trace;
void TrajectoryComplete(int traj,
Field &U,
GridSerialRNG &sRNG,
GridParallelRNG &pRNG) {
int def_prec = std::cout.precision();
std::cout << std::setprecision(std::numeric_limits<Real>::digits10 + 1);
std::cout << GridLogMessage
<< "m= " << TensorRemove(trace(sum(U))) << std::endl;
std::cout << GridLogMessage
<< "m^2= " << TensorRemove(trace(sum(U)*sum(U))) << std::endl;
std::cout.precision(def_prec);
}
private:
};
template <class Impl>
class MagMod: public ObservableModule<MagLogger<Impl>, NoParameters>{
typedef ObservableModule<MagLogger<Impl>, NoParameters> ObsBase;
using ObsBase::ObsBase; // for constructors
// acquire resource
virtual void initialize(){
this->ObservablePtr.reset(new MagLogger<Impl>());
}
public:
MagMod(): ObsBase(NoParameters()){}
};
int main(int argc, char **argv) {
using namespace Grid;
using namespace Grid::QCD;
typedef Grid::JSONReader Serialiser;
Grid_init(&argc, &argv);
@ -52,7 +91,7 @@ int main(int argc, char **argv) {
std::cout << GridLogMessage << "Grid is setup to use " << threads << " threads" << std::endl;
// Typedefs to simplify notation
constexpr int Ncolours = 4;
constexpr int Ncolours = 2;
constexpr int Ndimensions = 3;
typedef ScalarNxNAdjGenericHMCRunner<Ncolours> HMCWrapper; // Uses the default minimum norm, real scalar fields
typedef ScalarAdjActionR<Ncolours, Ndimensions> ScalarAction;
@ -89,6 +128,11 @@ int main(int argc, char **argv) {
RNGModuleParameters RNGpar(Reader);
TheHMC.Resources.SetRNGSeeds(RNGpar);
// Construct observables
typedef MagMod<HMCWrapper::ImplPolicy> MagObs;
TheHMC.Resources.AddObservable<MagObs>();
/////////////////////////////////////////////////////////////
// Collect actions, here use more encapsulation
@ -144,4 +188,4 @@ JSON
XML example not provided yet
*/
*/