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HMC ready but untested

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This commit is contained in:
neo
2015-07-04 17:47:50 +09:00
parent 59be55c0ab
commit e6087e1820
6 changed files with 225 additions and 83 deletions
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32
lib/qcd/hmc/HMC.h
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@ -1,6 +1,6 @@
//--------------------------------------------------------------------
/*! @file HMC.h
* @brief Declaration of classes for HybridMonteCarlo update
* @brief Declaration of classes for Hybrid Monte Carlo update
*
* @author Guido Cossu
*/
@ -30,7 +30,7 @@ namespace Grid{
const HMCparameters Params;
GridSerialRNG sRNG;
GridParallelRNG pRNG;
std::unique_ptr< Integrator<IntegType> > MD;
Integrator<IntegType>& MD;
bool metropolis_test(const RealD DeltaH){
@ -51,13 +51,13 @@ namespace Grid{
}
}
RealD evolve_step(LatticeColourMatrix& Uin){
MD->init(Uin,pRNG); // set U and initialize P and phi's
RealD evolve_step(LatticeLorentzColourMatrix& U){
MD->init(U,pRNG); // set U and initialize P and phi's
RealD H0 = MD->S(); // current state
std::cout<<"Total H_before = "<< H0 << "\n";
MD->integrate(0);
MD->integrate(U,0);
RealD H1 = MD->S(); // updated state
std::cout<<"Total H_after = "<< H1 << "\n";
@ -68,7 +68,10 @@ namespace Grid{
public:
HybridMonteCarlo(Integrator<IntegType>& MolDyn, GridBase* grid):MD(&MolDyn),pRNG(grid){
HybridMonteCarlo(HMCparameters Pms,
Integrator<IntegType>& MolDyn,
GridBase* grid):
Params(Pms),MD(MolDyn),pRNG(grid){
//FIXME
// initialize RNGs
@ -79,7 +82,7 @@ namespace Grid{
void evolve(LatticeColourMatrix& Uin){
void evolve(LatticeLorentzColourMatrix& Uin){
Real DeltaH;
Real timer;
@ -90,20 +93,21 @@ namespace Grid{
DeltaH = evolve_step(Uin);
std::cout<< "[Timing] Trajectory time (s) : "<< timer/1000.0 << "\n";
std::cout<< "dH = "<< DeltaH << "\n";
std::cout<< " dH = "<< DeltaH << "\n";
// Update matrix
Uin = MD->get_U(); //accept every time
//Uin = MD->get_U(); //accept every time
}
// Actual updates
// Actual updates (evolve a copy Ucopy then copy back eventually)
LatticeLorentzColourMatrix Ucopy(Uin._grid);
for(int iter=Params.StartingConfig;
iter < Params.Nsweeps+Params.StartingConfig; ++iter){
std::cout << "-- # Sweep = "<< iter << "\n";
Ucopy = Uin;
DeltaH = evolve_step(Ucopy);
DeltaH = evolve_step(Uin);
if(metropolis_test(DeltaH)) Uin = MD->get_U();
if(metropolis_test(DeltaH)) Uin = Ucopy;
// need sync?
}