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Diff for /OpenXM/src/ox_gsl/call_gsl.c between version 1.1 and 1.7

version 1.1, 2018/03/29 11:52:18 version 1.7, 2018/06/07 01:53:33
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   /* $OpenXM: OpenXM/src/ox_gsl/call_gsl.c,v 1.6 2018/06/06 10:46:00 takayama Exp $
   */
 //#include <gsl/gsl_types.h>  //#include <gsl/gsl_types.h>
 //#include <gsl/gsl_sys.h>  //#include <gsl/gsl_sys.h>
   #include <unistd.h>
 #include <gsl/gsl_sf_result.h>  #include <gsl/gsl_sf_result.h>
   #include <gsl/gsl_errno.h>
 #include <gsl/gsl_sf_gamma.h>  #include <gsl/gsl_sf_gamma.h>
   #include <gsl/gsl_integration.h>
   #include <gsl/gsl_monte.h>
   #include <gsl/gsl_monte_plain.h>
   #include <gsl/gsl_monte_miser.h>
   #include <gsl/gsl_monte_vegas.h>
 #include "ox_gsl.h"  #include "ox_gsl.h"
 extern int Debug;  extern int Debug;
   // local prototype declarations
   
 void  call_gsl_sf_lngamma_complex_e() {  void  call_gsl_sf_lngamma_complex_e() {
   cmo *c;    int argc;
   double zr;    double zr;
   double zi;    double zi;
   gsl_sf_result lnr;    gsl_sf_result lnr;
Line 13  void  call_gsl_sf_lngamma_complex_e() {
Line 24  void  call_gsl_sf_lngamma_complex_e() {
   int status;    int status;
   cmo *r[3];    cmo *r[3];
   cmo *ans;    cmo *ans;
   gsl_set_error_handler_off();    //  gsl_set_error_handler_off();
   // Todo, gsl_set_error_handler(my_handler);    gsl_set_error_handler((gsl_error_handler_t *)myhandler);
   c = pop(); // number of args    argc = get_i(); // number of args
     if (argc != 2) {
       pops(argc);
       push(make_error2("The argc must be 2 for gsl_sf_lngamma_complex_e.",NULL,0,-1));
       return;
     }
   zr=get_double();    zr=get_double();
   zi=get_double();    zi=get_double();
   if (Debug) printf("gsl_sf_lngamma_complex_e(zr=%lg,zi=%lg)\n",zr,zi);    if (Debug) printf("gsl_sf_lngamma_complex_e(zr=%lg,zi=%lg)\n",zr,zi);
Line 23  void  call_gsl_sf_lngamma_complex_e() {
Line 39  void  call_gsl_sf_lngamma_complex_e() {
   r[0] = (cmo *)new_cmo_double(lnr.val);    r[0] = (cmo *)new_cmo_double(lnr.val);
   r[1] = (cmo *)new_cmo_double(arg.val);    r[1] = (cmo *)new_cmo_double(arg.val);
   r[2] = (cmo *)new_cmo_int32(status);    r[2] = (cmo *)new_cmo_int32(status);
   ans = (cmo *)new_cmo_list_array((void **)r,3);    ans = (cmo *)new_cmo_list_array((void *)r,3);
     push(ans);
   }
   
   cmo *Func_x=NULL;  // function to evalute.
   cmo *Vlist=NULL;   // list of variables (not implemented yet).
   double f_x(double x,void *params) {
     double d;
     if (Debug) ox_printf("f_x\n");
     replace(1,"x",x);
     if (Debug) ox_printf("f_x after replace x=%lg\n",x);
     if (eval_cmo(Func_x,&d)==0) GSL_ERROR("eval_cmo fails in f_x",GSL_ETOL);
     if (Debug) ox_printf("f_x(%lg) -> d=%lg\n",x,d);
     return(d);
   }
   void  call_gsl_integration_qags() {
     int argc;
     double a;
     double b;
     int status;
     cmo *r[3];
     cmo *ans;
     gsl_integration_workspace * w
       = gsl_integration_workspace_alloc (1000);
     double result, error;
     gsl_function F;
     double epsabs=0;
     double epsrel=1e-7;
     int limit=1000;
   
     //  gsl_set_error_handler_off();
     gsl_set_error_handler((gsl_error_handler_t *)myhandler);
     argc = get_i(); // number of args
     if (argc != 3) {
       pops(argc);
       push(make_error2("The argc must be 3 for gsl_integration_qags.",NULL,0,-1));
       return;
     }
     Func_x = pop();
     a = get_double();
     b = get_double();
   
     F.function = &f_x;
     F.params=NULL;
   
     status=gsl_integration_qags (&F, a, b, epsabs, epsrel, limit,
                                  w, &result, &error);
   
     if (Debug) ox_printf ("result          = % .18f\n", result);
   //  printf ("estimated error = % .18f\n", error);
   //  printf ("intervals       = %zu\n", w->size);
   
     gsl_integration_workspace_free(w);
   
     r[0] = (cmo *)new_cmo_double(result);
     r[1] = (cmo *)new_cmo_double(error);
     r[2] = (cmo *)new_cmo_int32(status);
     ans = (cmo *)new_cmo_list_array((void *)r,3);
     push(ans);
   }
   
   double f_n(double x[],size_t dim,void *params) {
     int debug_f_n=0;
     double d;
     int i;
     char *xx[30]={"x0","x1","x2","x3","x4","x5","x6","x7","x8","x9",
                   "x10","x11","x12","x13","x14","x15","x16","x17","x18","x19",
                   "x20","x21","x22","x23","x24","x25","x26","x27","x28","x29"
                  };
   //  debug_f_n = Debug;
     if (dim > 30) GSL_ERROR("f_n supports functions with args <= 30",GSL_ETOL);
     init_dic();
     if (debug_f_n) ox_printf("f_n, dim=%d\n",dim);
     for (i=0; i<dim; i++) {
       if (debug_f_n) ox_printf("x%d=%lg, ",i,x[i]);
       register_entry(xx[i],x[i]);
     }
     if (debug_f_n) { ox_printf("\n"); fflush(NULL); }
     if (eval_cmo(Func_x,&d)==0) GSL_ERROR("eval_cmo fails in f_n",GSL_ETOL);
     if (debug_f_n) ox_printf("\nf_x(...) -> d=%lg\n",d);
     return(d);
   }
   void  call_gsl_monte_plain_miser_vegas_integrate(int type) {
     int argc;
     int dim;
     int dim2;
     cmo *cr[2];
     cmo *ans;
     double *xl;
     double *xu;
     gsl_monte_function G = {&f_n,0,0};
   
     double res, err;
     const gsl_rng_type *T;
     gsl_rng *r;
     //  size_t calls = 500000;
     size_t calls = 100000; // for test  1000
     gsl_monte_plain_state *s_p;
     gsl_monte_miser_state *s_m;
     gsl_monte_vegas_state *s_v;
     gsl_rng_env_setup ();
     T = gsl_rng_default;
     r = gsl_rng_alloc (T);
   
     //  gsl_set_error_handler_off();
     gsl_set_error_handler((gsl_error_handler_t *)myhandler);
     argc = get_i(); // number of args
     if (argc < 3) {
       pops(argc);
       push(make_error2("The argc must be >=3 for gsl_integration_qags.",NULL,0,-1));
       return;
     }
     Func_x = pop();
     xl = get_double_list(&dim);
     xu = get_double_list(&dim2);
     if (argc >= 4) {
       calls = (int) get_double();
     }
     if (argc >= 5) {
       Vlist = pop();  // list of variables. Not implemented yet.
     }
     if (dim != dim2) {
       push(make_error2("gsl_monte_plain: dim of interval differs.",NULL,0,-1));
       return;
     }
     G.dim=dim;
     switch(type) {
     case 0: // plain
       s_p = gsl_monte_plain_alloc (dim);
       gsl_monte_plain_integrate (&G, xl, xu, dim, calls, r, s_p,
                                  &res, &err);
       gsl_monte_plain_free (s_p);
       break;
     case 1: // miser
       s_m = gsl_monte_miser_alloc (dim);
       gsl_monte_miser_integrate (&G, xl, xu, dim, calls, r, s_m,
                                  &res, &err);
       gsl_monte_miser_free (s_m);
       break;
     default: // vegas;
       s_v = gsl_monte_vegas_alloc (dim);
       gsl_monte_vegas_integrate (&G, xl, xu, dim, calls, r, s_v,
                                  &res, &err);
       gsl_monte_vegas_free (s_v);
       break;
     }
     if (Debug) ox_printf("result = %lg\n",res);
     cr[0] = (cmo *)new_cmo_double(res);
     cr[1] = (cmo *)new_cmo_double(err);
     ans = (cmo *)new_cmo_list_array((void *)cr,2);
   push(ans);    push(ans);
 }  }
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