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#include "fracture.h"
int inc_break_fuses(net_t *instance, double *thres, double *field,
double cutoff) {
unsigned int size = (instance->graph)->ne;
int min_pos = -1;
long double min_val = -1;
for (unsigned int i = 0; i < size; i++) {
if (!instance->fuses[i] && fabs(field[i]) > cutoff) {
double val = fabs(field[i]) / thres[i];
if (min_val < val) {
min_val = val; min_pos = i;
}
}
}
return min_pos;
}
data_t *fracture_network(net_t *instance, double *fuse_thres,
cholmod_common *c, double cutoff) {
unsigned int num_edges = instance->graph->ne;
unsigned int num_verts = instance->graph->nv;
data_t *breaking_data = alloc_break_data(num_edges);
while (true) {
double *voltages = get_voltage(instance, c);
double *field = get_current_v(instance, voltages, c);
double conductivity = get_conductivity(instance, voltages, c);
if (conductivity < 1e-12 && instance->voltage_bound) {
free(voltages);
free(field);
break;
}
int last_broke = inc_break_fuses(instance, fuse_thres, field, cutoff);
if (last_broke > num_edges || last_broke < -1 || conductivity < 1e-8) {
printf("whoops %u\n\n", breaking_data->num_broken);
free(voltages);
free(field);
break;
}
update_break_data(breaking_data, last_broke, fabs(conductivity * fuse_thres[last_broke] / field[last_broke]), conductivity);
free(voltages);
free(field);
break_edge(instance, last_broke, c);
if (instance->num_components > 1 && instance->graph->boundary == TORUS_BOUND) {
break;
}
if (instance->marks[num_verts] != instance->marks[num_verts + 1] && instance->graph->boundary != TORUS_BOUND) {
break;
}
}
return breaking_data;
}
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