TwoPunctures.h

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/* TwoPunctures:  File  "TwoPunctures.h"*/
#pragma once
 
#include "libtwopunctures/TP_Utilities.h"
#include "libtwopunctures/TP_Parameters.h"
#include "libtwopunctures/TP_ConservedVectorNames.h"
 
#include <stdio.h>
 
namespace TP {
 

#define TP_RESTRICT __restrict__
 
/* Give MPI information about rank */
inline int TP_MyProc() {
    return 0;
}
 
/* end of quick adaptions */
 
typedef struct DERIVS {
  double *d0, *d1, *d2, *d3, *d11, *d12, *d13, *d22, *d23, *d33;
} derivs;
 
enum GRID_SETUP_METHOD { GSM_Taylor_expansion, GSM_evaluation };
 
/*
Files of "TwoPunctures":
    TwoPunctures.c
    FuncAndJacobian.c
    CoordTransf.c
    Equations.c
    Newton.c
    utilities.c (see utilities.h)
**************************
*/
 
class TwoPunctures : public Parameters {
public:
 
    // Work variables are defined in this class.
    // Parameters go to the class TwoPunctures::Parameters.
    
    // shared variables between TP Setup and TP Interpolation
    GRID_SETUP_METHOD gsm;
    int nvar, n1, n2, n3;
    int _n1_low, _n2_low, _n3_low;
    derivs u, v, cf_v;
    int antisymmetric_lapse, averaged_lapse, pmn_lapse, brownsville_lapse;
        double * _d0contig     __attribute__ ((aligned (32)));
        double * _d0contig_low __attribute__ ((aligned (32)));
    bool runned; 
    
    /* Consructor */
 
    TwoPunctures() {
        nvar = 0; n1 = 0; n2 = 0; n3 = 0;
        runned = false;
    }
 
    /* Routines in  "TwoPunctures.c"*/
    void set_initial_guess(derivs v);
    double TestSolution (double A, double B, double X, double R, double phi);
    void TestVector_w (double *par, int nvar, int n1, int n2, int n3, double *w);
    void Run ();
    void Interpolate (const double* const pos, double *Q, bool low_res=false);
 
    /* Routines in  "FuncAndJacobian.c"*/
    int Index (int ivar, int i, int j, int k, int nvar, int n1, int n2, int n3);
    void allocate_derivs (derivs * v, int n);
    void free_derivs (derivs * v, int n);
    void Derivatives_AB3 (int nvar, int n1, int n2, int n3, derivs v);
    void F_of_v (int nvar, int n1, int n2, int n3, derivs v,
        double *F, derivs u);
    void J_times_dv (int nvar, int n1, int n2, int n3, derivs dv,
        double *Jdv, derivs u);
    void JFD_times_dv (int i, int j, int k, int nvar, int n1,
        int n2, int n3, derivs dv, derivs u, double *values);
    void SetMatrix_JFD (int nvar, int n1, int n2, int n3,
        derivs u, int *ncols, int **cols, double **Matrix);
    double PunctEvalAtArbitPosition (double *v, int ivar, double A, double B, double phi,
        int nvar, int n1, int n2, int n3);
    void calculate_derivs (int i, int j, int k, int ivar, int nvar, int n1,
        int n2, int n3, derivs v, derivs vv);
    double interpol (double a, double b, double c, derivs v);
    double PunctTaylorExpandAtArbitPosition (int ivar, int nvar, int n1,
        int n2, int n3, derivs v, double x,
        double y, double z);
    double PunctIntPolAtArbitPosition (int ivar, int nvar, int n1,
        int n2, int n3, derivs v, double x,
        double y, double z);
    void SpecCoef (int n1, int n2, int n3, int ivar, double *v, double *cf);
    double PunctEvalAtArbitPositionFast (double *v, int ivar, double A, double B, double phi,
        int nvar, int n1, int n2, int n3);
    double PunctEvalAtArbitPositionFaster (double A, double B, double phi);
    double PunctEvalAtArbitPositionFasterLowRes (double A, double B, double phi);
    double PunctIntPolAtArbitPositionFast (derivs v, double x, double y, double z, bool low_res=false);
 
    /* Routines in  "CoordTransf.c"*/
    void AB_To_XR (int nvar, double A, double B, double *X,
        double *R, derivs U);
    void C_To_c (int nvar, double X, double R, double *x,
        double *r, derivs U);
    void rx3_To_xyz (int nvar, double x, double r, double phi, double *y,
        double *z, derivs U);
 
    /* Routines in  "Equations.c"*/
    double BY_KKofxyz (double x, double y, double z);
    void BY_Aijofxyz (double x, double y, double z, double Aij[3][3]);
    void NonLinEquations (double rho_adm,
        double A, double B, double X, double R,
        double x, double r, double phi,
        double y, double z, derivs U, double *values);
    void LinEquations (double A, double B, double X, double R,
        double x, double r, double phi,
        double y, double z, derivs dU, derivs U, double *values);
 
    /* Routines in  "Newton.c"*/
    void TestRelax (int nvar, int n1, int n2, int n3, derivs v, double *dv);
    void Newton (int nvar, int n1, int n2, int n3, derivs v,
            double tol, int itmax);
 
    /* Former static routines in "Newton.c"*/
    int
    bicgstab (int const nvar, int const n1, int const n2, int const n3,
        derivs v, derivs dv,
        int const output, int const itmax, double const tol,
        double * TP_RESTRICT const normres);
    double
    norm_inf (double const * TP_RESTRICT const F,
        int const ntotal);
    void
    relax (double * TP_RESTRICT const dv,
        int const nvar, int const n1, int const n2, int const n3,
        double const * TP_RESTRICT const rhs,
        int const * TP_RESTRICT const ncols,
        int const * TP_RESTRICT const * TP_RESTRICT const cols,
        double const * TP_RESTRICT const * TP_RESTRICT const JFD);
    void
    resid (double * TP_RESTRICT const res,
        int const ntotal,
        double const * TP_RESTRICT const dv,
        double const * TP_RESTRICT const rhs,
        int const * TP_RESTRICT const ncols,
        int const * TP_RESTRICT const * TP_RESTRICT const cols,
        double const * TP_RESTRICT const * TP_RESTRICT const JFD);
    void
    LineRelax_al (double * TP_RESTRICT const dv,
        int const j, int const k, int const nvar,
        int const n1, int const n2, int const n3,
        double const * TP_RESTRICT const rhs,
        int const * TP_RESTRICT const ncols,
        int const * TP_RESTRICT const * TP_RESTRICT const cols,
        double const * TP_RESTRICT const * TP_RESTRICT const JFD);
    void
    LineRelax_be (double * TP_RESTRICT const dv,
        int const i, int const k, int const nvar,
        int const n1, int const n2, int const n3,
        double const * TP_RESTRICT const rhs,
        int const * TP_RESTRICT const ncols,
        int const * TP_RESTRICT const * TP_RESTRICT const cols,
        double const * TP_RESTRICT const * TP_RESTRICT const JFD);
 
 
}; // class TwoPunctures
 
} // namespace TP