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authorJaron Kent-Dobias <jaron@kent-dobias.com>2018-07-26 16:18:40 -0400
committerJaron Kent-Dobias <jaron@kent-dobias.com>2018-07-26 16:18:40 -0400
commit1160baa61bad605cf8a1d583e8ae356a54a942df (patch)
treee7c865f38836a9a03349bbd803aae8be9b37a200 /src
parent870555f569bc63fecdc7c0b16e72e4e002f21c13 (diff)
downloadc++-1160baa61bad605cf8a1d583e8ae356a54a942df.tar.gz
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many changes, including new spin spaces and groups and cleaning up core library code
Diffstat (limited to 'src')
-rw-r--r--src/wolff_O2.cpp278
-rw-r--r--src/wolff_On.cpp2
-rw-r--r--src/wolff_cgm.cpp2
-rw-r--r--src/wolff_clock.cpp4
-rw-r--r--src/wolff_dgm.cpp4
-rw-r--r--src/wolff_ising.cpp4
-rw-r--r--src/wolff_potts.cpp4
7 files changed, 288 insertions, 10 deletions
diff --git a/src/wolff_O2.cpp b/src/wolff_O2.cpp
new file mode 100644
index 0000000..63ca0a7
--- /dev/null
+++ b/src/wolff_O2.cpp
@@ -0,0 +1,278 @@
+
+#include <getopt.h>
+#include <stdio.h>
+
+#ifdef HAVE_GLUT
+#include <GL/glut.h>
+#endif
+
+#include <circle_group.h>
+#include <angle.h>
+
+#include <wolff.h>
+#include <measure.h>
+#include <colors.h>
+#include <rand.h>
+
+typedef circle_group_t orthogonal_R_t;
+typedef angle_t vector_R_t;
+typedef state_t <orthogonal_R_t, vector_R_t> On_t;
+
+double H_modulated(vector_R_t v, int order, double mag) {
+ return mag * cos(order * v.x);
+}
+
+double theta(double *v) {
+ double x = v[0];
+ double y = v[1];
+
+ if (x == 0) {
+ if (y >= 0) {
+ return M_PI / 2;
+ } else {
+ return - M_PI / 2;
+ }
+ } else {
+ double val = atan(y / x);
+
+ if (x < 0.0 && y > 0.0) {
+ return M_PI + val;
+ } else if ( x < 0.0 && y < 0.0 ) {
+ return - M_PI + val;
+ } else {
+ return val;
+ }
+ }
+}
+
+int main(int argc, char *argv[]) {
+
+ count_t N = (count_t)1e7;
+
+ D_t D = 2;
+ L_t L = 128;
+ double T = 2.26918531421;
+ double *H_vec = (double *)calloc(MAX_Q, sizeof(double));
+
+ bool silent = false;
+ bool use_pert = false;
+ bool N_is_sweeps = false;
+ bool draw = false;
+ unsigned int window_size = 512;
+
+ bool modulated_field = false;
+ unsigned int order = 1;
+
+ int opt;
+ q_t H_ind = 0;
+ double epsilon = 1;
+
+// unsigned char measurement_flags = measurement_energy | measurement_clusterSize;
+
+ unsigned char measurement_flags = 0;
+
+ while ((opt = getopt(argc, argv, "N:D:L:T:H:spe:mo:M:Sdw:")) != -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_vec[H_ind] = atof(optarg);
+ H_ind++;
+ break;
+ case 's': // don't print anything during simulation. speeds up slightly
+ silent = true;
+ break;
+ case 'p':
+ use_pert = true;
+ break;
+ case 'e':
+ epsilon = atof(optarg);
+ break;
+ case 'm':
+ modulated_field = true;
+ break;
+ case 'M':
+ measurement_flags ^= 1 << atoi(optarg);
+ break;
+ case 'o':
+ order = atoi(optarg);
+ break;
+ case 'S':
+ N_is_sweeps = 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);
+ }
+ }
+
+ unsigned long timestamp;
+
+ {
+ struct timespec spec;
+ clock_gettime(CLOCK_REALTIME, &spec);
+ timestamp = spec.tv_sec*1000000000LL + spec.tv_nsec;
+ }
+
+ const char *pert_type;
+
+ std::function <orthogonal_R_t(gsl_rng *, vector_R_t)> gen_R;
+
+ if (use_pert) {
+ gen_R = [=] (gsl_rng *r, const angle_t& t) -> circle_group_t {
+ circle_group_t rot;
+ rot.is_reflection = true;
+
+ unsigned int x = gsl_rng_uniform_int(r, order);
+ double amount = epsilon * gsl_ran_ugaussian(r);
+
+ rot.x = fmod(2 * M_PI * (1.0 + (double)x / (double)order + amount), 2 * M_PI);
+
+ return rot;
+ };
+ pert_type = "PERTURB";
+ } else {
+ gen_R = [=] (gsl_rng *r, const angle_t& t) -> circle_group_t {
+ circle_group_t rot;
+ rot.is_reflection = true;
+ rot.x = 2 * M_PI * gsl_rng_uniform(r);
+
+ return rot;
+ };
+ pert_type = "UNIFORM";
+ }
+
+ FILE *outfile_info = fopen("wolff_metadata.txt", "a");
+
+ fprintf(outfile_info, "<| \"ID\" -> %lu, \"MODEL\" -> \"%s\", \"q\" -> %d, \"D\" -> %" PRID ", \"L\" -> %" PRIL ", \"NV\" -> %" PRIv ", \"NE\" -> %" PRIv ", \"T\" -> %.15f, \"FIELD_TYPE\" -> ", timestamp, ON_strings[2], 2, D, L, (v_t)pow(L, D), D * (v_t)pow(L, D), T);
+ if (modulated_field) {
+ fprintf(outfile_info, "\"MODULATED\", \"ORDER\" -> %d, \"H\" -> %.15f, ", order, H_vec[0]);
+ } else {
+ fprintf(outfile_info, "\"VECTOR\", \"H\" -> {");
+ for (q_t i = 0; i < 2; i++) {
+ fprintf(outfile_info, "%.15f", H_vec[i]);
+ if (i < 2 - 1) {
+ fprintf(outfile_info, ", ");
+ }
+ }
+ fprintf(outfile_info, "}, ");
+ }
+
+ fprintf(outfile_info, "\"GENERATOR\" -> \"%s\"", pert_type);
+
+ if (use_pert) {
+ fprintf(outfile_info, ", \"EPS\" -> %g", epsilon);
+ }
+
+ fprintf(outfile_info, " |>\n");
+
+ fclose(outfile_info);
+
+ FILE **outfiles = measure_setup_files(measurement_flags, timestamp);
+
+ std::function <void(const On_t *)> other_f;
+ uint64_t sum_of_clusterSize = 0;
+
+ if (N_is_sweeps) {
+ other_f = [&] (const On_t *s) {
+ sum_of_clusterSize += s->last_cluster_size;
+ };
+ } else if (draw) {
+#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);
+
+ other_f = [&] (const On_t *s) {
+ glClear(GL_COLOR_BUFFER_BIT);
+ for (v_t i = 0; i < pow(L, 2); i++) {
+ vector_R_t v_tmp = s->R.act_inverse(s->spins[i]);
+ double saturation = 0.7;
+ double value = 0.9;
+ double chroma = saturation * value;
+ glColor3f(chroma * hue_to_R(v_tmp.x) + (value - chroma), chroma * hue_to_G(v_tmp.x) + (value - chroma), chroma * hue_to_B(v_tmp.x) + (value - chroma));
+ glRecti(i / L, i % L, (i / L) + 1, (i % L) + 1);
+ }
+ glFlush();
+ };
+#endif
+ } else {
+ other_f = [] (const On_t *s) {};
+ }
+
+ std::function <void(const On_t *)> measurements = measure_function_write_files(measurement_flags, outfiles, other_f);
+
+ std::function <double(const angle_t&, const angle_t&)> J = [] (const angle_t& t1, const angle_t& t2) -> double {
+ return cos(t1.x - t2.x);
+ };
+
+ std::function <double(const angle_t &)> H;
+
+ if (modulated_field) {
+ H = [=] (const angle_t& t) -> double {
+ return H_vec[0] * cos(order * t.x);
+ };
+ } else {
+ double mag = 0;
+ for (q_t i = 0; i < 2; i++) {
+ mag += pow(H_vec[i], 2);
+ }
+ mag = sqrt(mag);
+ double t0 = theta(H_vec);
+ H = [=] (const angle_t& t) -> double {
+ return mag * cos(t0 + t.x);
+ };
+ }
+
+ // initialize random number generator
+ gsl_rng *r = gsl_rng_alloc(gsl_rng_taus2);
+ gsl_rng_set(r, rand_seed());
+
+ state_t <orthogonal_R_t, vector_R_t> s(D, L, T, J, H);
+
+ if (N_is_sweeps) {
+ count_t N_rounds = 0;
+ printf("\n");
+ while (sum_of_clusterSize < N * s.nv) {
+ printf("\033[F\033[J\033[F\033[JWOLFF: sweep %" PRIu64 " / %" PRIu64 ": E = %.2f, S = %" PRIv "\n", (count_t)((double)sum_of_clusterSize / (double)s.nv), N, s.E, s.last_cluster_size);
+ wolff <orthogonal_R_t, vector_R_t> (N, &s, gen_R, measurements, r, silent);
+ N_rounds++;
+ }
+ printf("\033[F\033[J\033[F\033[JWOLFF: sweep %" PRIu64 " / %" PRIu64 ": E = %.2f, S = %" PRIv "\n\n", (count_t)((double)sum_of_clusterSize / (double)s.nv), N, s.E, s.last_cluster_size);
+ } else {
+ wolff <orthogonal_R_t, vector_R_t> (N, &s, gen_R, measurements, r, silent);
+ }
+
+ measure_free_files(measurement_flags, outfiles);
+ free(H_vec);
+ gsl_rng_free(r);
+
+ return 0;
+}
+
diff --git a/src/wolff_On.cpp b/src/wolff_On.cpp
index 5458860..cbde498 100644
--- a/src/wolff_On.cpp
+++ b/src/wolff_On.cpp
@@ -206,7 +206,7 @@ int main(int argc, char *argv[]) {
std::function <void(const On_t *)> measurements = measure_function_write_files(measurement_flags, outfiles, other_f);
- std::function <double(vector_R_t)> H;
+ std::function <double(const vector_R_t&)> H;
if (modulated_field) {
H = std::bind(H_modulated, std::placeholders::_1, order, H_vec[0]);
diff --git a/src/wolff_cgm.cpp b/src/wolff_cgm.cpp
index 7613691..ec3ae36 100644
--- a/src/wolff_cgm.cpp
+++ b/src/wolff_cgm.cpp
@@ -75,7 +75,7 @@ int main(int argc, char *argv[]) {
gsl_rng_set(r, rand_seed());
// define spin-spin coupling
- std::function <double(height_t<double>, height_t<double>)> Z = [] (height_t<double> h1, height_t<double> h2) -> double {
+ std::function <double(const height_t<double>&, const height_t<double>&)> Z = [] (const height_t<double>& h1, const height_t<double>& h2) -> double {
return -pow(h1.x - h2.x, 2);
};
diff --git a/src/wolff_clock.cpp b/src/wolff_clock.cpp
index bc2c5d1..376eaec 100644
--- a/src/wolff_clock.cpp
+++ b/src/wolff_clock.cpp
@@ -78,12 +78,12 @@ int main(int argc, char *argv[]) {
gsl_rng_set(r, rand_seed());
// define spin-spin coupling
- std::function <double(potts_t<POTTSQ>, potts_t<POTTSQ>)> Z = [] (potts_t<POTTSQ> s1, potts_t<POTTSQ> s2) -> double {
+ std::function <double(const potts_t<POTTSQ>&, const potts_t<POTTSQ>&)> Z = [] (const potts_t<POTTSQ>& s1, const potts_t<POTTSQ>& s2) -> double {
return cos(2 * M_PI * (double)(s1.x + POTTSQ - s2.x) / (double)POTTSQ);
};
// define spin-field coupling
- std::function <double(potts_t<POTTSQ>)> B = [=] (potts_t<POTTSQ> s) -> double {
+ std::function <double(const potts_t<POTTSQ>&)> B = [=] (const potts_t<POTTSQ>& s) -> double {
return H_vec[s.x];
};
diff --git a/src/wolff_dgm.cpp b/src/wolff_dgm.cpp
index 2583704..d00cae5 100644
--- a/src/wolff_dgm.cpp
+++ b/src/wolff_dgm.cpp
@@ -75,12 +75,12 @@ int main(int argc, char *argv[]) {
gsl_rng_set(r, rand_seed());
// define spin-spin coupling
- std::function <double(height_t<int64_t>, height_t<int64_t>)> Z = [] (height_t<int64_t> h1, height_t<int64_t> h2) -> double {
+ 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(height_t<int64_t>)> B = [=] (height_t<int64_t> h) -> double {
+ std::function <double(const height_t<int64_t> &)> B = [=] (const height_t<int64_t>& h) -> double {
return -H * pow(h.x, 2);;
};
diff --git a/src/wolff_ising.cpp b/src/wolff_ising.cpp
index 410e046..0c9485d 100644
--- a/src/wolff_ising.cpp
+++ b/src/wolff_ising.cpp
@@ -99,7 +99,7 @@ int main(int argc, char *argv[]) {
gsl_rng_set(r, rand_seed());
// define spin-spin coupling
- std::function <double(ising_t, ising_t)> Z = [] (ising_t s1, ising_t s2) -> double {
+ std::function <double(const ising_t&, const ising_t&)> Z = [] (const ising_t& s1, const ising_t& s2) -> double {
if (s1.x == s2.x) {
return 1.0;
} else {
@@ -108,7 +108,7 @@ int main(int argc, char *argv[]) {
};
// define spin-field coupling
- std::function <double(ising_t)> B = [=] (ising_t s) -> double {
+ std::function <double(const ising_t&)> B = [=] (const ising_t& s) -> double {
if (s.x) {
return -H;
} else {
diff --git a/src/wolff_potts.cpp b/src/wolff_potts.cpp
index 07663d5..2bc306b 100644
--- a/src/wolff_potts.cpp
+++ b/src/wolff_potts.cpp
@@ -99,7 +99,7 @@ int main(int argc, char *argv[]) {
gsl_rng_set(r, rand_seed());
// define spin-spin coupling
- std::function <double(potts_t<POTTSQ>, potts_t<POTTSQ>)> Z = [] (potts_t<POTTSQ> s1, potts_t<POTTSQ> s2) -> double {
+ std::function <double(const potts_t<POTTSQ>&, const potts_t<POTTSQ>&)> Z = [] (const potts_t<POTTSQ>& s1, const potts_t<POTTSQ>& s2) -> double {
if (s1.x == s2.x) {
return 1.0;
} else {
@@ -108,7 +108,7 @@ int main(int argc, char *argv[]) {
};
// define spin-field coupling
- std::function <double(potts_t<POTTSQ>)> B = [=] (potts_t<POTTSQ> s) -> double {
+ std::function <double(const potts_t<POTTSQ> &)> B = [=] (const potts_t<POTTSQ>& s) -> double {
return H_vec[s.x];
};