Trisurf Monte Carlo simulator
Samo Penic
2020-04-26 3006183b769f2e126b1a96e6bf697c2b7f657df7
commit | author | age
7f6076 1 /* vim: set ts=4 sts=4 sw=4 noet : */
d7639a 2 #include<stdlib.h>
SP 3 #include<stdio.h>
aec47d 4 #include<math.h>
SP 5 //#include "io.h"
6 #include "general.h"
7 #include "timestep.h"
8 #include "vertexmove.h"
30ee9c 9 #include "bondflip.h"
d7a113 10 #include "frame.h"
SP 11 #include "io.h"
37d14a 12 #include "stats.h"
dc77e8 13 #include "sh.h"
459ff9 14 #include "shcomplex.h"
dc77e8 15 #include "vesicle.h"
5a3862 16 #include<gsl/gsl_complex.h>
M 17 #include<gsl/gsl_complex_math.h>
267db5 18 #include<string.h>
ac9826 19 #include <sys/stat.h>
300618 20 #include "initial_distribution.h"
fedf2b 21
626811 22 ts_bool run_simulation(ts_vesicle *vesicle, ts_uint mcsweeps, ts_uint inititer, ts_uint iterations, ts_uint start_iteration){
d5d78a 23     ts_uint i, j,k; //,l,m;
SP 24     ts_double kc1=0,kc2=0,kc3=0,kc4=0;
c0ae90 25     ts_double l1,l2,l3,vmsr,bfsr, vmsrt, bfsrt;
37d14a 26     ts_ulong epochtime;
0dd5ba 27     ts_double max_z,min_z;
d5d78a 28     FILE *fd3=NULL;
267db5 29      char filename[10000];
ac9826 30     //struct stat st;
SP 31     strcpy(filename,command_line_args.path);
32     strcat(filename,"statistics.csv");
33     //int result = stat(filename, &st);
34     FILE *fd;
35     if(start_iteration==0)
36         fd=fopen(filename,"w");
37     else
38         fd=fopen(filename,"a");
37d14a 39     if(fd==NULL){
SP 40         fatal("Cannot open statistics.csv file for writing",1);
41     }
ac9826 42     if(start_iteration==0)
SP 43         fprintf(fd, "Epoch OuterLoop VertexMoveSucessRate BondFlipSuccessRate Volume Area lamdba1 lambda2 lambda3 Kc(2-9) Kc(6-9) Kc(2-end) Kc(3-6)\n");
5a3862 44
d5d78a 45 /*     if(vesicle->sphHarmonics!=NULL){
267db5 46         strcpy(filename,command_line_args.path);
SP 47         strcat(filename,"ulm2.csv"); 
ac9826 48 //    int result = stat(filename, &st);
SP 49     if(start_iteration==0)
267db5 50         fd2=fopen(filename,"w");
ac9826 51     else
SP 52         fd2=fopen(filename,"a");
819a09 53     if(fd2==NULL){
S 54         fatal("Cannot open ulm2.csv file for writing",1);
d5d78a 55     } 
SP 56
819a09 57     if(start_iteration==0) //file does not exist
S 58         fprintf(fd2, "Timestep u_00^2 u_10^2 u_11^2 u_20^2 ...\n");    
5a3862 59     }
d5d78a 60 */
5a3862 61
c60a49 62 /* RANDOM SEED SET BY CURRENT TIME */
M 63     epochtime=get_epoch();            
64     srand48(epochtime);
d7a113 65     centermass(vesicle);
SP 66     cell_occupation(vesicle);
fe5069 67     vesicle_volume(vesicle); //needed for constant volume at this moment
88bdd7 68     vesicle_area(vesicle); //needed for constant area at this moment
49981c 69     if(V0<0.000001) 
SP 70         V0=vesicle->volume; 
71     ts_fprintf(stdout,"Setting volume V0=%.17f\n",V0);
72     if(A0<0.000001)
73         A0=vesicle->area;
819a09 74     ts_fprintf(stdout,"Setting area A0=%.17f\n",A0);
a54977 75     epsvol=4.0*sqrt(2.0*M_PI)/pow(3.0,3.0/4.0)*V0/pow(vesicle->tlist->n,3.0/2.0);
d5d78a 76 //    printf("epsvol=%e\n",epsvol);
88bdd7 77     epsarea=A0/(ts_double)vesicle->tlist->n;
300618 78     
SP 79     int delta_number_c0=ceil((float)vesicle->tape->number_of_vertices_with_c0/(float)(iterations-1));
80     ts_fprintf(stdout, "Adding additional %d inclusions every %d iterations (%d times, total=%d).\n",delta_number_c0, mcsweeps, (vesicle->tape->number_of_vertices_with_c0)/delta_number_c0,(vesicle->tape->number_of_vertices_with_c0/delta_number_c0)*delta_number_c0); 
88bdd7 81
626811 82     if(start_iteration<inititer) ts_fprintf(stdout, "Starting simulation (first %d x %d MC sweeps will not be recorded on disk)\n", inititer, mcsweeps);
SP 83     for(i=start_iteration;i<inititer+iterations;i++){
37d14a 84         vmsr=0.0;
SP 85         bfsr=0.0;
0dd5ba 86
SP 87     //plane confinement
88     if(vesicle->tape->plane_confinement_switch){
89         min_z=1e10;
90         max_z=-1e10;
91         for(k=0;k<vesicle->vlist->n;k++){
92             if(vesicle->vlist->vtx[k]->z > max_z) max_z=vesicle->vlist->vtx[k]->z;
93             if(vesicle->vlist->vtx[k]->z < min_z) min_z=vesicle->vlist->vtx[k]->z;
94         }
95         vesicle->confinement_plane.force_switch=0;
96         if(max_z>=vesicle->tape->plane_d/2.0){
97             ts_fprintf(stdout, "Max vertex out of bounds (z>=%e). Plane set to max_z = %e.\n",vesicle->tape->plane_d/2.0,max_z);
98             vesicle->confinement_plane.z_max = max_z;
99             vesicle->confinement_plane.force_switch=1;
100         } else {
101             vesicle->confinement_plane.z_max=vesicle->tape->plane_d/2.0;
102         }
103         if(min_z<=-vesicle->tape->plane_d/2.0){
104             ts_fprintf(stdout, "Min vertex out of bounds (z<=%e). Plane set to min_z = %e.\n",-vesicle->tape->plane_d/2.0,min_z);
105             vesicle->confinement_plane.z_min = min_z;
106             vesicle->confinement_plane.force_switch=1;
107         } else {
108             vesicle->confinement_plane.z_min=-vesicle->tape->plane_d/2.0;
109         }
110         ts_fprintf(stdout,"Vesicle confinement by plane set to (zmin, zmax)=(%e,%e).\n",vesicle->confinement_plane.z_min,vesicle->confinement_plane.z_max);
111         if(vesicle->confinement_plane.force_switch) ts_fprintf(stdout,"Squeezing with force %e.\n",vesicle->tape->plane_F);
112     }
113
114     //end plane confinement
115
3de289 116 /*    vesicle_volume(vesicle);
SP 117     fprintf(stderr,"Volume before TS=%1.16e\n", vesicle->volume); */
300618 118
SP 119         if(i*delta_number_c0<vesicle->tape->number_of_vertices_with_c0){
120             fprintf(stdout, "Adding %d inclusions.\n", delta_number_c0);
121             add_vertices_with_c0(vesicle, delta_number_c0, vesicle->tape->c0, vesicle->tape->w);
122         }
d7a113 123         for(j=0;j<mcsweeps;j++){
37d14a 124             single_timestep(vesicle, &vmsrt, &bfsrt);
SP 125             vmsr+=vmsrt;
126             bfsr+=bfsrt;
d7a113 127         }
3de289 128 /*
SP 129     vesicle_volume(vesicle);
130     fprintf(stderr,"Volume after TS=%1.16e\n", vesicle->volume); */
37d14a 131         vmsr/=(ts_double)mcsweeps;
SP 132         bfsr/=(ts_double)mcsweeps;
d7a113 133         centermass(vesicle);
SP 134         cell_occupation(vesicle);
2a1e3d 135 /* BINARY DUMPS ARE OBSOLETE. SHOULD WORK AS OF MAR 2020, BUT NO LONGER MAINTAINED */
SP 136 //                dump_state(vesicle,i);
d5d78a 137             vesicle_volume(vesicle); //calculates just volume. 
SP 138                     vesicle_area(vesicle); //calculates area.
139         if(vesicle->tape->constvolswitch==0){
140             V0=vesicle->volume;
141         }
142         if(vesicle->tape->constareaswitch==0){
143             A0=vesicle->area;
144         }
58230a 145         if(i>=inititer){
0a2c81 146             write_vertex_xml_file(vesicle,i-inititer,NULL);
267db5 147             write_master_xml_file(command_line_args.output_fullfilename);
37d14a 148             epochtime=get_epoch();            
SP 149             gyration_eigen(vesicle, &l1, &l2, &l3);
d5d78a 150             //r0=getR0(vesicle);
dc77e8 151
c0ae90 152             fprintf(fd, "%lu %u %e %e %1.16e %1.16e %1.16e %1.16e %1.16e %1.16e %1.16e %1.16e %1.16e\n",epochtime,i,vmsr,bfsr,vesicle->volume, vesicle->area,l1,l2,l3,kc1, kc2, kc3,kc4);
5a3862 153
632960 154             fflush(fd);    
144784 155         //    sprintf(filename,"timestep-%05d.pov",i-inititer);
fe24d2 156         //    write_pov_file(vesicle,filename);
49981c 157         } //end if(inititer....)
SP 158         fd3=fopen(".status","w"); //write status file when everything is written to disk.
159         if(fd3==NULL){
160             fatal("Cannot open .status file for writing",1);
d7a113 161         }
49981c 162         fprintf(fd3,"%d",i);
SP 163         fclose(fd3);
164         ts_fprintf(stdout,"Done %d out of %d iterations (x %d MC sweeps).\n",i+1,inititer+iterations,mcsweeps);
d7a113 165     }
37d14a 166     fclose(fd);
d5d78a 167 //    if(fd2!=NULL) fclose(fd2);
d7a113 168     return TS_SUCCESS;
SP 169 }
d7639a 170
37d14a 171 ts_bool single_timestep(ts_vesicle *vesicle,ts_double *vmsr, ts_double *bfsr){
3de289 172 //    vesicle_volume(vesicle);
SP 173 //    fprintf(stderr,"Volume before TS=%1.16e\n", vesicle->volume);
d7639a 174     ts_bool retval;
SP 175     ts_double rnvec[3];
fe5069 176     ts_uint i,j, b;
37d14a 177     ts_uint vmsrcnt=0;
aec47d 178     for(i=0;i<vesicle->vlist->n;i++){
d7639a 179         rnvec[0]=drand48();
SP 180         rnvec[1]=drand48();
181         rnvec[2]=drand48();
aec47d 182         retval=single_verticle_timestep(vesicle,vesicle->vlist->vtx[i],rnvec);
37d14a 183     if(retval==TS_SUCCESS) vmsrcnt++;        
d7639a 184     }
SP 185
37d14a 186     ts_int bfsrcnt=0;
fedf2b 187     for(i=0;i<3*vesicle->vlist->n;i++){
fe5069 188     b=rand() % vesicle->blist->n;
d7639a 189         //find a bond and return a pointer to a bond...
SP 190         //call single_bondflip_timestep...
fe5069 191         retval=single_bondflip_timestep(vesicle,vesicle->blist->bond[b],rnvec);
3de289 192        //     b++; retval=TS_FAIL;
37d14a 193     if(retval==TS_SUCCESS) bfsrcnt++;        
fedf2b 194     }
M 195
196     for(i=0;i<vesicle->poly_list->n;i++){
58230a 197         for(j=0;j<vesicle->poly_list->poly[i]->vlist->n;j++){
M 198             rnvec[0]=drand48();
199             rnvec[1]=drand48();
200             rnvec[2]=drand48();
201             retval=single_poly_vertex_move(vesicle,vesicle->poly_list->poly[i],vesicle->poly_list->poly[i]->vlist->vtx[j],rnvec);    
202         }
fedf2b 203     }
M 204
58230a 205
M 206     for(i=0;i<vesicle->filament_list->n;i++){
207         for(j=0;j<vesicle->filament_list->poly[i]->vlist->n;j++){
208             rnvec[0]=drand48();
209             rnvec[1]=drand48();
210             rnvec[2]=drand48();
211             retval=single_filament_vertex_move(vesicle,vesicle->filament_list->poly[i],vesicle->filament_list->poly[i]->vlist->vtx[j],rnvec);    
212         }
fedf2b 213     }
M 214  
58230a 215
fedf2b 216 //    printf("Bondflip success rate in one sweep: %d/%d=%e\n", cnt,3*vesicle->blist->n,(double)cnt/(double)vesicle->blist->n/3.0);
37d14a 217     *vmsr=(ts_double)vmsrcnt/(ts_double)vesicle->vlist->n;
SP 218     *bfsr=(ts_double)bfsrcnt/(ts_double)vesicle->vlist->n/3.0;
3de289 219 //    vesicle_volume(vesicle);
SP 220 //    fprintf(stderr,"Volume after TS=%1.16e\n", vesicle->volume);
d7639a 221     return TS_SUCCESS;
SP 222 }
223
224
225