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Trigger-Discipline: port TwoPuncture OpenMP optimizations

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CGH0S7
2026-04-24 09:25:13 +08:00
parent a821f21a23
commit 7f603f189b
2 changed files with 942 additions and 239 deletions
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1122
AMSS_NCKU_source/TwoPunctures.C
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49
AMSS_NCKU_source/TwoPunctures.h
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@@ -1,7 +1,8 @@
#ifndef TWO_PUNCTURES_H #ifndef TWO_PUNCTURES_H
#define TWO_PUNCTURES_H #define TWO_PUNCTURES_H
#include <omp.h>
#define StencilSize 19 #define StencilSize 19
#define N_PlaneRelax 1 #define N_PlaneRelax 1
#define NRELAX 200 #define NRELAX 200
@@ -42,6 +43,18 @@ private:
int ntotal; int ntotal;
// ===== Precomputed spectral derivative matrices =====
double *D1_A, *D2_A;
double *D1_B, *D2_B;
double *DF1_phi, *DF2_phi;
// ===== Pre-allocated workspace for LineRelax (per-thread) =====
int max_threads;
double **ws_diag_be, **ws_e_be, **ws_f_be, **ws_b_be, **ws_x_be;
double **ws_l_be, **ws_u_be, **ws_d_be, **ws_y_be;
double **ws_diag_al, **ws_e_al, **ws_f_al, **ws_b_al, **ws_x_al;
double **ws_l_al, **ws_u_al, **ws_d_al, **ws_y_al;
struct parameters struct parameters
{ {
int nvar, n1, n2, n3; int nvar, n1, n2, n3;
@@ -58,6 +71,28 @@ public:
int Newtonmaxit); int Newtonmaxit);
~TwoPunctures(); ~TwoPunctures();
// 02/07: New/modified methods
void allocate_workspace();
void free_workspace();
void precompute_derivative_matrices();
void build_cheb_deriv_matrices(int n, double *D1, double *D2);
void build_fourier_deriv_matrices(int N, double *DF1, double *DF2);
void Derivatives_AB3_MatMul(int nvar, int n1, int n2, int n3, derivs v);
void ThomasAlgorithm_ws(int N, double *b, double *a, double *c, double *x, double *q,
double *l, double *u_ws, double *d, double *y);
void LineRelax_be_omp(double *dv,
int const i, int const k, int const nvar,
int const n1, int const n2, int const n3,
double const *rhs, int const *ncols, int **cols,
double **JFD, int tid);
void LineRelax_al_omp(double *dv,
int const j, int const k, int const nvar,
int const n1, int const n2, int const n3,
double const *rhs, int const *ncols,
int **cols, double **JFD, int tid);
void relax_omp(double *dv, int const nvar, int const n1, int const n2, int const n3,
double const *rhs, int const *ncols, int **cols, double **JFD);
void Solve(); void Solve();
void set_initial_guess(derivs v); void set_initial_guess(derivs v);
int index(int i, int j, int k, int l, int a, int b, int c, int d); int index(int i, int j, int k, int l, int a, int b, int c, int d);
@@ -116,23 +151,11 @@ public:
double BY_KKofxyz(double x, double y, double z); double BY_KKofxyz(double x, double y, double z);
void SetMatrix_JFD(int nvar, int n1, int n2, int n3, derivs u, int *ncols, int **cols, double **Matrix); void SetMatrix_JFD(int nvar, int n1, int n2, int n3, derivs u, int *ncols, int **cols, double **Matrix);
void J_times_dv(int nvar, int n1, int n2, int n3, derivs dv, double *Jdv, derivs u); void J_times_dv(int nvar, int n1, int n2, int n3, derivs dv, double *Jdv, derivs u);
void relax(double *dv, int const nvar, int const n1, int const n2, int const n3,
double const *rhs, int const *ncols, int **cols, double **JFD);
void LineRelax_be(double *dv,
int const i, int const k, int const nvar,
int const n1, int const n2, int const n3,
double const *rhs, int const *ncols, int **cols,
double **JFD);
void JFD_times_dv(int i, int j, int k, int nvar, int n1, int n2, void JFD_times_dv(int i, int j, int k, int nvar, int n1, int n2,
int n3, derivs dv, derivs u, double *values); int n3, derivs dv, derivs u, double *values);
void LinEquations(double A, double B, double X, double R, void LinEquations(double A, double B, double X, double R,
double x, double r, double phi, double x, double r, double phi,
double y, double z, derivs dU, derivs U, double *values); double y, double z, derivs dU, derivs U, double *values);
void LineRelax_al(double *dv,
int const j, int const k, int const nvar,
int const n1, int const n2, int const n3,
double const *rhs, int const *ncols,
int **cols, double **JFD);
void ThomasAlgorithm(int N, double *b, double *a, double *c, double *x, double *q); void ThomasAlgorithm(int N, double *b, double *a, double *c, double *x, double *q);
void Save(char *fname); void Save(char *fname);
// provided by Vasileios Paschalidis (vpaschal@illinois.edu) // provided by Vasileios Paschalidis (vpaschal@illinois.edu)