From a43ff1f98e9b9814f858bccb11c174b418458491 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Wed, 10 Oct 2018 21:45:32 -0400
Subject: big rearrangement of files to make libraries and example (research)
 files clearer, and changed to c++ std lib random numbers

---
 src/wolff_dgm.cpp | 171 ------------------------------------------------------
 1 file changed, 171 deletions(-)
 delete mode 100644 src/wolff_dgm.cpp

(limited to 'src/wolff_dgm.cpp')

diff --git a/src/wolff_dgm.cpp b/src/wolff_dgm.cpp
deleted file mode 100644
index 8667fb5..0000000
--- a/src/wolff_dgm.cpp
+++ /dev/null
@@ -1,171 +0,0 @@
-
-#include <getopt.h>
-
-#ifdef HAVE_GLUT
-#include <GL/glut.h>
-#endif
-
-// include your group and spin space
-#include <dihedral_inf.h>
-#include <height.h>
-
-// include wolff.h
-#include <rand.h>
-#include <wolff.h>
-
-typedef state_t <dihedral_inf_t<int64_t>, height_t<int64_t>> sim_t;
-
-int main(int argc, char *argv[]) {
-
-  count_t N = (count_t)1e4;
-
-  D_t D = 2;
-  L_t L = 128;
-  double T = 2.26918531421;
-  double H = 0;
-
-  bool silent = false;
-  bool draw = false;
-  unsigned int window_size = 512;
-  uint64_t epsilon = 1;
-
-  int opt;
-
-  while ((opt = getopt(argc, argv, "N:D:L:T:H:sdw:e:")) != -1) {
-    switch (opt) {
-    case 'N': // number of steps
-      N = (count_t)atof(optarg);
-      break;
-    case 'D': // dimension
-      D = atoi(optarg);
-      break;
-    case 'L': // linear size
-      L = atoi(optarg);
-      break;
-    case 'T': // temperature 
-      T = atof(optarg);
-      break;
-    case 'H': // external field. nth call couples to state n
-      H = atof(optarg);
-      break;
-    case 'e': // external field. nth call couples to state n
-      epsilon = atof(optarg);
-      break;
-    case 's': // don't print anything during simulation. speeds up slightly
-      silent = true;
-      break;
-    case 'd':
-#ifdef HAVE_GLUT
-      draw = true;
-      break;
-#else
-      printf("You didn't compile this with the glut library installed!\n");
-      exit(EXIT_FAILURE);
-#endif
-    case 'w':
-      window_size = atoi(optarg);
-      break;
-    default:
-      exit(EXIT_FAILURE);
-    }
-  }
-
-  // initialize random number generator
-  gsl_rng *r = gsl_rng_alloc(gsl_rng_mt19937);
-  gsl_rng_set(r, rand_seed());
-
-  // define spin-spin coupling
-  std::function <double(const height_t<int64_t>&, const height_t<int64_t>&)> Z = [] (const height_t<int64_t>& h1, const height_t<int64_t>& h2) -> double {
-    return -pow(h1.x - h2.x, 2);
-  };
-
-  // define spin-field coupling
-  std::function <double(const height_t<int64_t> &)> B = [=] (const height_t<int64_t>& h) -> double {
-    return -H * pow(h.x, 2);;
-  };
-
-  // initialize state object
-  sim_t s(D, L, T, Z, B);
-
-  // define function that generates self-inverse rotations
-  std::function <dihedral_inf_t<int64_t>(gsl_rng *, height_t<int64_t>)> gen_R = [=] (gsl_rng *r, height_t<int64_t> h) -> dihedral_inf_t<int64_t> {
-    dihedral_inf_t<int64_t> rot;
-    rot.is_reflection = true;
-
-    int direction = gsl_rng_uniform_int(r, 2);
-    int64_t amount = gsl_rng_uniform_int(r, epsilon);
-
-    if (direction == 0) {
-      rot.x = 2 * h.x + (1 + amount);
-    } else {
-      rot.x = 2 * h.x - (1 + amount);
-    }
-
-    return rot;
-  };
-
-  // define function that updates any number of measurements
-  std::function <void(const sim_t&)> measurement;
-
-  double average_M = 0;
-  if (!draw) {
-    // a very simple example: measure the average magnetization
-    measurement = [&] (const sim_t& s) {
-      average_M += (double)s.M / (double)N / (double)s.nv;
-    };
-  } else {
-    // a more complex example: measure the average magnetization, and draw the spin configuration to the screen
-
-#ifdef HAVE_GLUT
-    // initialize glut
-    glutInit(&argc, argv);
-    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
-    glutInitWindowSize(window_size, window_size);
-    glutCreateWindow("wolff");
-    glClearColor(0.0,0.0,0.0,0.0);
-    glMatrixMode(GL_PROJECTION);
-    glLoadIdentity();
-    gluOrtho2D(0.0, L, 0.0, L);
-
-    measurement = [&] (const sim_t& s) {
-      average_M += (double)s.M / (double)N / (double)s.nv;
-      glClear(GL_COLOR_BUFFER_BIT);
-      int64_t max_h = INT64_MIN;
-      int64_t min_h = INT64_MAX;
-      for (v_t i = 0; i < pow(L, 2); i++) {
-        int64_t cur_h = (s.R.act_inverse(s.spins[i])).x;
-        if (cur_h < min_h) {
-          min_h = cur_h;
-        }
-        if (cur_h > max_h) {
-          max_h = cur_h;
-        }
-      }
-
-      for (v_t i = 0; i < pow(L, 2); i++) {
-        int64_t cur_h = (s.R.act_inverse(s.spins[i])).x;
-        double mag = ((double)(cur_h - min_h)) / ((double)(max_h - min_h));
-        glColor3f(mag, mag, mag);
-        glRecti(i / L, i % L, (i / L) + 1, (i % L) + 1);
-      }
-      glFlush();
-    };
-#endif
-  }
-
-  // run wolff for N cluster flips
-  wolff(N, s, gen_R, measurement, r, silent);
-
-  // tell us what we found!
-  printf("%" PRIcount " DGM runs completed. D = %" PRID ", L = %" PRIL ", T = %g, H = %g, <M> = %g\n", N, D, L, T, H, average_M);
-
-  // free the random number generator
-  gsl_rng_free(r);
-
-  if (draw) {
-  }
-
-  return 0;
-
-}
-
-- 
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