From 802b63ddf121b520db7942fe330cce6004fbeb6d Mon Sep 17 00:00:00 2001 From: Jaron Kent-Dobias Date: Wed, 25 Jul 2018 16:22:50 -0400 Subject: got everyone recording data, and fixed huge bug in the updating of ReF and ImF --- src/wolff_potts.cpp | 93 ++++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 70 insertions(+), 23 deletions(-) (limited to 'src/wolff_potts.cpp') diff --git a/src/wolff_potts.cpp b/src/wolff_potts.cpp index f8f1523..cdc4c07 100644 --- a/src/wolff_potts.cpp +++ b/src/wolff_potts.cpp @@ -1,5 +1,6 @@ #include +#include #ifdef HAVE_GLUT #include @@ -8,13 +9,14 @@ // include your group and spin space #include #include -#include // hack to speed things up considerably #define N_STATES POTTSQ #include // include wolff.h +#include +#include #include #include @@ -31,12 +33,16 @@ int main(int argc, char *argv[]) { bool silent = false; bool draw = false; + bool N_is_sweeps = false; unsigned int window_size = 512; + // don't measure anything by default + unsigned char measurement_flags = 0; + int opt; q_t H_ind = 0; - while ((opt = getopt(argc, argv, "N:D:L:T:H:sdw:")) != -1) { + while ((opt = getopt(argc, argv, "N:D:L:T:H:sdw:M:S")) != -1) { switch (opt) { case 'N': // number of steps N = (count_t)atof(optarg); @@ -57,6 +63,9 @@ int main(int argc, char *argv[]) { case 's': // don't print anything during simulation. speeds up slightly silent = true; break; + case 'S': + N_is_sweeps = true; + break; case 'd': #ifdef HAVE_GLUT draw = true; @@ -68,11 +77,23 @@ int main(int argc, char *argv[]) { case 'w': window_size = atoi(optarg); break; + case 'M': + measurement_flags ^= 1 << atoi(optarg); + break; default: exit(EXIT_FAILURE); } } + // get nanosecond timestamp for unique run id + unsigned long timestamp; + + { + struct timespec spec; + clock_gettime(CLOCK_REALTIME, &spec); + timestamp = spec.tv_sec*1000000000LL + spec.tv_nsec; + } + // initialize random number generator gsl_rng *r = gsl_rng_alloc(gsl_rng_mt19937); gsl_rng_set(r, rand_seed()); @@ -113,18 +134,16 @@ int main(int argc, char *argv[]) { return rot; }; - // define function that updates any number of measurements - std::function measurement; + FILE **outfiles = measure_setup_files(measurement_flags, timestamp); - double average_M = 0; - if (!draw) { - // a very simple example: measure the average magnetization - measurement = [&] (const sim_t *s) { - average_M += (double)s->M[0] / (double)N / (double)s->nv; - }; - } else { - // a more complex example: measure the average magnetization, and draw the spin configuration to the screen + std::function other_f; + uint64_t sum_of_clusterSize = 0; + if (N_is_sweeps) { + other_f = [&] (const sim_t *s) { + sum_of_clusterSize += s->last_cluster_size; + }; + } else if (draw) { #ifdef HAVE_GLUT // initialize glut glutInit(&argc, argv); @@ -136,31 +155,59 @@ int main(int argc, char *argv[]) { glLoadIdentity(); gluOrtho2D(0.0, L, 0.0, L); - measurement = [&] (const sim_t *s) { - average_M += (double)s->M[0] / (double)N / (double)s->nv; + other_f = [] (const sim_t *s) { glClear(GL_COLOR_BUFFER_BIT); - for (v_t i = 0; i < pow(L, 2); i++) { + for (v_t i = 0; i < pow(s->L, 2); i++) { potts_t tmp_s = act_inverse(s->R, s->spins[i]); glColor3f(hue_to_R(tmp_s.x * 2 * M_PI / POTTSQ), hue_to_G(tmp_s.x * 2 * M_PI / POTTSQ), hue_to_B(tmp_s.x * 2 * M_PI / POTTSQ)); - glRecti(i / L, i % L, (i / L) + 1, (i % L) + 1); + glRecti(i / s->L, i % s->L, (i / s->L) + 1, (i % s->L) + 1); } glFlush(); }; #endif + } else { + other_f = [] (const sim_t *s) {}; } - // run wolff for N cluster flips - wolff(N, &s, gen_R, measurement, r, silent); + std::function measurements = measure_function_write_files(measurement_flags, outfiles, other_f); - // tell us what we found! - printf("%" PRIcount " %d-Potts runs completed. D = %" PRID ", L = %" PRIL ", T = %g, H = %g, = %g\n", N, POTTSQ, D, L, T, H_vec[0], average_M); + // add line to metadata file with run info + { + FILE *outfile_info = fopen("wolff_metadata.txt", "a"); - // free the random number generator - gsl_rng_free(r); + fprintf(outfile_info, "<| \"ID\" -> %lu, \"MODEL\" -> \"POTTS\", \"q\" -> %d, \"D\" -> %" PRID ", \"L\" -> %" PRIL ", \"NV\" -> %" PRIv ", \"NE\" -> %" PRIv ", \"T\" -> %.15f, \"H\" -> {", timestamp, POTTSQ, s.D, s.L, s.nv, s.ne, T); + + for (q_t i = 0; i < POTTSQ; i++) { + fprintf(outfile_info, "%.15f", H_vec[i]); + if (i < POTTSQ - 1) { + fprintf(outfile_info, ", "); + } + } - if (draw) { + fprintf(outfile_info, "} |>\n"); + + fclose(outfile_info); } + // run wolff for N cluster flips + 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(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(N, &s, gen_R, measurements, r, silent); + } + + // free the random number generator + gsl_rng_free(r); + free(H_vec); + measure_free_files(measurement_flags, outfiles); + return 0; } -- cgit v1.2.3-70-g09d2