Stats.hpp

/*
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 *
 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
 * research, please cite the appropriate papers when you publish your
 * work.  Good starting points are:
 *
 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
 * [4] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 * [5] Kuang & Gezelter, Mol. Phys., 110, 691-701 (2012).
 * [6] Lamichhane, Gezelter & Newman, J. Chem. Phys. 141, 134109 (2014).
 * [7] Lamichhane, Newman & Gezelter, J. Chem. Phys. 141, 134110 (2014).
 * [8] Bhattarai, Newman & Gezelter, Phys. Rev. B 99, 094106 (2019).
 */
 
#ifndef BRAINS_STATS_HPP
#define BRAINS_STATS_HPP
 
#include <bitset>
#include <map>
#include <string>
 
#include "brains/SimInfo.hpp"
#include "math/SquareMatrix3.hpp"
#include "utils/OldAccumulator.hpp"
 
using namespace std;
namespace OpenMD {
 
  class Stats {
  public:
    enum StatsIndex {
      BEGININDEX = 0,  // internal use
      TIME       = BEGININDEX,
      TOTAL_ENERGY,
      POTENTIAL_ENERGY,
      KINETIC_ENERGY,
      TEMPERATURE,
      PRESSURE,
      VOLUME,
      HULLVOLUME,
      GYRVOLUME,
      CONSERVED_QUANTITY,
      TRANSLATIONAL_KINETIC,
      ROTATIONAL_KINETIC,
      ELECTRONIC_KINETIC,
      LONG_RANGE_POTENTIAL,
      VANDERWAALS_POTENTIAL,
      ELECTROSTATIC_POTENTIAL,
      METALLIC_POTENTIAL,
      METALLIC_EMBEDDING,
      METALLIC_PAIR,
      HYDROGENBONDING_POTENTIAL,
      RECIPROCAL_POTENTIAL,
      SURFACE_POTENTIAL,
      SHORT_RANGE_POTENTIAL,
      BOND_POTENTIAL,
      BEND_POTENTIAL,
      DIHEDRAL_POTENTIAL,
      INVERSION_POTENTIAL,
      RAW_POTENTIAL,
      RESTRAINT_POTENTIAL,
      EXCLUDED_POTENTIAL,
      PRESSURE_TENSOR,
      VIRIAL_TENSOR,
      SYSTEM_DIPOLE,
      SYSTEM_QUADRUPOLE,
      TAGGED_PAIR_DISTANCE,
      SHADOWH,
      HELFANDMOMENT,
      HEATFLUX,
      ELECTRONIC_TEMPERATURE,
      COM,
      COM_VELOCITY,
      ANGULAR_MOMENTUM,
      POTENTIAL_SELECTION,
      NET_CHARGE,
      CHARGE_MOMENTUM,
      CURRENT_DENSITY,
      ENDINDEX  // internal use
    };
 
    struct StatsData {
      std::string title;
      std::string units;
      std::string dataType;
      BaseAccumulator* accumulator;
      std::vector<BaseAccumulator*> accumulatorArray2d;
    };
 
    using StatsBitSet  = std::bitset<ENDINDEX - BEGININDEX>;
    using StatsMapType = std::map<std::string, StatsIndex>;
 
    Stats(SimInfo* info);
    virtual ~Stats();
    void parseStatFileFormat(const std::string& format);
    int getPrecision();
    void collectStats();
    std::string getStatsReport();
 
    StatsBitSet getStatsMask();
    StatsMapType getStatsMap();
    void setStatsMask(StatsBitSet mask);
 
    string getTitle(int index);
    string getUnits(int index);
    string getDataType(int index);
 
    int getIntData(int index);
    RealType getRealData(int index);
    Vector3d getVectorData(int index);
    potVec getPotVecData(int index);
    Mat3x3d getMatrixData(int index);
    std::vector<RealType> getArrayData(int index);
 
    int getIntAverage(int index);
    RealType getRealAverage(int index);
    Vector3d getVectorAverage(int index);
    potVec getPotVecAverage(int index);
    Mat3x3d getMatrixAverage(int index);
    std::vector<RealType> getArrayAverage(int index);
 
    int getIntError(int index);
    RealType getRealError(int index);
    Vector3d getVectorError(int index);
    potVec getPotVecError(int index);
    Mat3x3d getMatrixError(int index);
    std::vector<RealType> getArrayError(int index);
 
  private:
    SimInfo* info_ {nullptr};
    void init();
    bool isInit_;
    std::vector<StatsData> data_;
    StatsBitSet statsMask_;
    StatsMapType statsMap_;
  };
}  // namespace OpenMD
 
#endif