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-rw-r--r--src/wolff_On.cpp219
-rw-r--r--src/wolff_heisenberg.cpp145
-rw-r--r--src/wolff_planar.cpp183
3 files changed, 219 insertions, 328 deletions
diff --git a/src/wolff_On.cpp b/src/wolff_On.cpp
new file mode 100644
index 0000000..336869f
--- /dev/null
+++ b/src/wolff_On.cpp
@@ -0,0 +1,219 @@
+
+#include <getopt.h>
+
+#include <wolff.h>
+#include <correlation.h>
+#include <measure.h>
+
+typedef state_t <orthogonal_t <N_COMP, double>, vector_t <N_COMP, double>> planar_t;
+
+// angle from the x-axis of a two-vector
+double theta(vector_t <N_COMP, double> v) {
+ double x = v.x[0];
+ double y = v.x[1];
+
+ 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;
+ }
+}
+
+double H_modulated(vector_t <N_COMP, double> v, int order, double mag) {
+ return mag * cos(order * theta(v));
+}
+
+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 modulated_field = false;
+ int order = 2;
+
+ int opt;
+ q_t J_ind = 0;
+ q_t H_ind = 0;
+ double epsilon = 1;
+
+ unsigned char measurement_flags = 0;
+
+ while ((opt = getopt(argc, argv, "N:q:D:L:T:J:H:spe:mo:M:")) != -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;
+ 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_t <N_COMP, double>(gsl_rng *, const planar_t *)> gen_R;
+
+ if (use_pert) {
+ gen_R = std::bind(generate_rotation_perturbation <N_COMP>, std::placeholders::_1, std::placeholders::_2, epsilon);
+ pert_type = "PERTURB";
+ } else {
+ gen_R = generate_rotation_uniform <N_COMP>;
+ 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, \"H\" -> {", timestamp, ON_strings[N_COMP], N_COMP, D, L, L * L, D * L * L, T);
+
+ for (q_t i = 0; i < N_COMP; i++) {
+ fprintf(outfile_info, "%.15f", H_vec[i]);
+ if (i < N_COMP - 1) {
+ fprintf(outfile_info, ", ");
+ }
+ }
+
+ fprintf(outfile_info, "}, \"GENERATOR\" -> \"%s\", \"EPS\" -> %g |>\n", pert_type, epsilon);
+
+ fclose(outfile_info);
+
+ unsigned int n_measurements = 0;
+ std::function <void(const planar_t *)> *measurements = (std::function <void(const planar_t *)> *)calloc(POSSIBLE_MEASUREMENTS, sizeof(std::function <void(const planar_t *)>));
+ FILE *outfile_M, *outfile_E, *outfile_S, *outfile_F;
+ double *fftw_in, *fftw_out;
+ fftw_plan plan;
+
+ if (measurement_flags & measurement_energy) {
+ char *filename_E = (char *)malloc(255 * sizeof(char));
+ sprintf(filename_E, "wolff_%lu_E.dat", timestamp);
+ outfile_E = fopen(filename_E, "wb");
+ free(filename_E);
+ measurements[n_measurements] = measurement_energy_file<orthogonal_t <N_COMP, double>, vector_t <N_COMP, double>> (outfile_E);
+ n_measurements++;
+ }
+
+ if (measurement_flags & measurement_clusterSize) {
+ char *filename_S = (char *)malloc(255 * sizeof(char));
+ sprintf(filename_S, "wolff_%lu_S.dat", timestamp);
+ outfile_S = fopen(filename_S, "wb");
+ free(filename_S);
+ measurements[n_measurements] = measurement_cluster_file<orthogonal_t <N_COMP, double>, vector_t <N_COMP, double>> (outfile_S);
+ n_measurements++;
+ }
+
+ if (measurement_flags & measurement_magnetization) {
+ char *filename_M = (char *)malloc(255 * sizeof(char));
+ sprintf(filename_M, "wolff_%lu_M.dat", timestamp);
+ outfile_M = fopen(filename_M, "wb");
+ free(filename_M);
+ measurements[n_measurements] = measurement_magnetization_file<orthogonal_t <N_COMP, double>, vector_t <N_COMP, double>> (outfile_M);
+ n_measurements++;
+ }
+
+ if (measurement_flags & measurement_fourierZero) {
+ char *filename_F = (char *)malloc(255 * sizeof(char));
+ sprintf(filename_F, "wolff_%lu_F.dat", timestamp);
+ outfile_F = fopen(filename_F, "wb");
+ free(filename_F);
+
+ fftw_in = (double *)fftw_malloc(pow(L, D) * sizeof(double));
+ fftw_out = (double *)fftw_malloc(pow(L, D) * sizeof(double));
+ int rank = D;
+ int *n = (int *)malloc(rank * sizeof(int));
+ fftw_r2r_kind *kind = (fftw_r2r_kind *)malloc(rank * sizeof(fftw_r2r_kind));
+ for (D_t i = 0; i < rank; i++) {
+ n[i] = L;
+ kind[i] = FFTW_R2HC;
+ }
+ plan = fftw_plan_r2r(rank, n, fftw_in, fftw_out, kind, 0);
+
+ free(n);
+ free(kind);
+
+ measurements[n_measurements] = measurement_fourier_file<orthogonal_t <N_COMP, double>, vector_t <N_COMP, double>> (outfile_F, plan, fftw_in, fftw_out);
+ n_measurements++;
+ }
+
+ std::function <double(vector_t <N_COMP, double>)> H;
+
+ if (modulated_field) {
+ H = std::bind(H_modulated, std::placeholders::_1, order, H_vec[0]);
+ } else {
+ H = std::bind(H_vector <N_COMP, double>, std::placeholders::_1, H_vec);
+ }
+
+ wolff <orthogonal_t <N_COMP, double>, vector_t <N_COMP, double>> (N, D, L, T, dot <N_COMP, double>, H, gen_R, n_measurements, measurements, silent);
+
+ free(measurements);
+
+ if (measurement_flags & measurement_energy) {
+ fclose(outfile_E);
+ }
+ if (measurement_flags & measurement_clusterSize) {
+ fclose(outfile_S);
+ }
+ if (measurement_flags & measurement_magnetization) {
+ fclose(outfile_M);
+ }
+ if (measurement_flags & measurement_fourierZero) {
+ fclose(outfile_F);
+ fftw_destroy_plan(plan);
+ fftw_free(fftw_in);
+ fftw_free(fftw_out);
+ fftw_cleanup(); // fftw is only used if fourier modes are measured!
+ }
+
+ free(H_vec);
+
+ return 0;
+}
+
diff --git a/src/wolff_heisenberg.cpp b/src/wolff_heisenberg.cpp
deleted file mode 100644
index e05453f..0000000
--- a/src/wolff_heisenberg.cpp
+++ /dev/null
@@ -1,145 +0,0 @@
-
-#include <getopt.h>
-
-#include <correlation.h>
-#include <wolff.h>
-
-typedef state_t <orthogonal_t <3, double>, vector_t <3, double>> heisenberg_t;
-
-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 = (double *)calloc(MAX_Q, sizeof(double));
-
- bool silent = false;
- bool use_pert = false;
-
- int opt;
- q_t J_ind = 0;
- q_t H_ind = 0;
- double epsilon = 1;
-
- while ((opt = getopt(argc, argv, "N:q:D:L:T:J:H:spe:")) != -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[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;
- default:
- exit(EXIT_FAILURE);
- }
- }
-
- unsigned long timestamp;
-
- {
- struct timespec spec;
- clock_gettime(CLOCK_REALTIME, &spec);
- timestamp = spec.tv_sec*1000000000LL + spec.tv_nsec;
- }
-
- std::function <orthogonal_t <3, double>(gsl_rng *, const heisenberg_t *)> gen_R;
-
- const char *pert_type;
-
- if (use_pert) {
- gen_R = std::bind(generate_rotation_perturbation <3>, std::placeholders::_1, std::placeholders::_2, epsilon);
- pert_type = "PERTURB";
- } else {
- gen_R = generate_rotation_uniform <3>;
- pert_type = "UNIFORM";
- }
-
- FILE *outfile_info = fopen("wolff_metadata.txt", "a");
-
- fprintf(outfile_info, "<| \"ID\" -> %lu, \"MODEL\" -> \"HEISENBERG\", \"q\" -> 3, \"D\" -> %" PRID ", \"L\" -> %" PRIL ", \"NV\" -> %" PRIv ", \"NE\" -> %" PRIv ", \"T\" -> %.15f, \"H\" -> {", timestamp, D, L, L * L, D * L * L, T);
-
- for (q_t i = 0; i < 3; i++) {
- fprintf(outfile_info, "%.15f", H[i]);
- if (i < 3 - 1) {
- fprintf(outfile_info, ", ");
- }
- }
-
- fprintf(outfile_info, "}, \"GENERATOR\" -> \"%s\", \"EPS\" -> %g |>\n", pert_type, epsilon);
-
- fclose(outfile_info);
-
- char *filename_M = (char *)malloc(255 * sizeof(char));
- char *filename_E = (char *)malloc(255 * sizeof(char));
- char *filename_S = (char *)malloc(255 * sizeof(char));
- char *filename_X = (char *)malloc(255 * sizeof(char));
-
- sprintf(filename_M, "wolff_%lu_M.dat", timestamp);
- sprintf(filename_E, "wolff_%lu_E.dat", timestamp);
- sprintf(filename_S, "wolff_%lu_S.dat", timestamp);
- sprintf(filename_X, "wolff_%lu_X.dat", timestamp);
-
- FILE *outfile_M = fopen(filename_M, "wb");
- FILE *outfile_E = fopen(filename_E, "wb");
- FILE *outfile_S = fopen(filename_S, "wb");
- FILE *outfile_X = fopen(filename_X, "wb");
-
- free(filename_M);
- free(filename_E);
- free(filename_S);
- free(filename_X);
-
- std::function <void(const heisenberg_t *)> *measurements = (std::function <void(const heisenberg_t *)> *)malloc(4 * sizeof(std::function <void(const heisenberg_t *)>));
-
- measurements[0] = [&](const heisenberg_t *s) {
- float smaller_E = (float)s->E;
- fwrite(&smaller_E, sizeof(float), 1, outfile_E);
- };
- measurements[1] = [&](const heisenberg_t *s) {
- float smaller_X = (float)correlation_length(s);
- fwrite(&smaller_X, sizeof(float), 1, outfile_X);
- };
- measurements[2] = [&](const heisenberg_t *s) {
- write_magnetization(s->M, outfile_M);
- };
- measurements[3] = [&](const heisenberg_t *s) {
- fwrite(&(s->last_cluster_size), sizeof(uint32_t), 1, outfile_S);
- };
-
- wolff <orthogonal_t <3, double>, vector_t <3, double>> (N, D, L, T, dot <3, double>, std::bind(H_vector <3, double>, std::placeholders::_1, H), gen_R, 4, measurements, silent);
-
- free(measurements);
-
- fclose(outfile_M);
- fclose(outfile_E);
- fclose(outfile_S);
- fclose(outfile_X);
-
- free(H);
-
- fftw_cleanup();
-
- return 0;
-}
-
diff --git a/src/wolff_planar.cpp b/src/wolff_planar.cpp
deleted file mode 100644
index 4b9b5f0..0000000
--- a/src/wolff_planar.cpp
+++ /dev/null
@@ -1,183 +0,0 @@
-
-#include <getopt.h>
-
-#include <wolff.h>
-#include <correlation.h>
-
-typedef state_t <orthogonal_t <2, double>, vector_t <2, double>> planar_t;
-
-// angle from the x-axis of a two-vector
-double theta(vector_t <2, double> v) {
- double x = v.x[0];
- double y = v.x[1];
-
- 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;
- }
-}
-
-double H_modulated(vector_t <2, double> v, int order, double mag) {
- return mag * cos(order * theta(v));
-}
-
-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 modulated_field = false;
- int order = 2;
-
- int opt;
- q_t J_ind = 0;
- q_t H_ind = 0;
- double epsilon = 1;
-
- while ((opt = getopt(argc, argv, "N:q:D:L:T:J:H:spe:mo:")) != -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 'o':
- order = 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_t <2, double>(gsl_rng *, const planar_t *)> gen_R;
-
- if (use_pert) {
- gen_R = std::bind(generate_rotation_perturbation <2>, std::placeholders::_1, std::placeholders::_2, epsilon);
- pert_type = "PERTURB";
- } else {
- gen_R = generate_rotation_uniform <2>;
- pert_type = "UNIFORM";
- }
-
-
- FILE *outfile_info = fopen("wolff_metadata.txt", "a");
-
- fprintf(outfile_info, "<| \"ID\" -> %lu, \"MODEL\" -> \"PLANAR\", \"q\" -> 2, \"D\" -> %" PRID ", \"L\" -> %" PRIL ", \"NV\" -> %" PRIv ", \"NE\" -> %" PRIv ", \"T\" -> %.15f, \"H\" -> {", timestamp, D, L, L * L, D * L * L, T);
-
- 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, "}, \"GENERATOR\" -> \"%s\", \"EPS\" -> %g |>\n", pert_type, epsilon);
-
- fclose(outfile_info);
-
- char *filename_M = (char *)malloc(255 * sizeof(char));
- char *filename_E = (char *)malloc(255 * sizeof(char));
- char *filename_S = (char *)malloc(255 * sizeof(char));
- char *filename_X = (char *)malloc(255 * sizeof(char));
-
- sprintf(filename_M, "wolff_%lu_M.dat", timestamp);
- sprintf(filename_E, "wolff_%lu_E.dat", timestamp);
- sprintf(filename_S, "wolff_%lu_S.dat", timestamp);
- sprintf(filename_X, "wolff_%lu_X.dat", timestamp);
-
- FILE *outfile_M = fopen(filename_M, "wb");
- FILE *outfile_E = fopen(filename_E, "wb");
- FILE *outfile_S = fopen(filename_S, "wb");
- FILE *outfile_X = fopen(filename_X, "wb");
-
- free(filename_M);
- free(filename_E);
- free(filename_S);
- free(filename_X);
-
- std::function <void(const planar_t *)> *measurements = (std::function <void(const planar_t *)> *)calloc(4, sizeof(std::function <void(const planar_t *)>));
-
- measurements[0] = (std::function <void(const planar_t *)>)[&](const planar_t *s) {
- float smaller_E = (float)s->E;
- fwrite(&smaller_E, sizeof(float), 1, outfile_E);
- };
- measurements[1] = [&](const planar_t *s) {
- float smaller_X = (float)correlation_length(s);
- fwrite(&smaller_X, sizeof(float), 1, outfile_X);
- };
- measurements[2] = [&](const planar_t *s) {
- write_magnetization(s->M, outfile_M);
- };
- measurements[3] = [&](const planar_t *s) {
- fwrite(&(s->last_cluster_size), sizeof(uint32_t), 1, outfile_S);
- };
-
- std::function <double(vector_t <2, double>)> H;
-
- if (modulated_field) {
- H = std::bind(H_modulated, std::placeholders::_1, order, H_vec[0]);
- } else {
- H = std::bind(H_vector <2, double>, std::placeholders::_1, H_vec);
- }
-
- wolff <orthogonal_t <2, double>, vector_t <2, double>> (N, D, L, T, dot <2, double>, H, gen_R, 4, measurements, silent);
-
- free(measurements);
-
- fclose(outfile_M);
- fclose(outfile_E);
- fclose(outfile_S);
- fclose(outfile_X);
-
- free(H_vec);
-
- fftw_cleanup();
-
- return 0;
-}
-