4 * author: frank zirkelbach (frank.zirkelbach@physik.uni-augsburg.de)
6 * this program tries helping to understand the amorphous depuration
7 * and recrystallization of SiCx while ion implantation at temperatures
8 * below 400 degree celsius.
9 * hopefully the program will simulate the stabilization of the
10 * selforganizing lamella structure in the observed behaviour.
13 * - J. K. N. Lindner. Habil.Schrift, Universitaet Augsburg.
14 * - Maik Haeberlen. Diplomarbeit, Universitaet Augsburg.
16 * Copyright (C) 2004 Frank Zirkelbach
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
38 #include <sys/types.h>
52 #include "nlsop_general.h"
54 #define MAKE_AMORPH(N) *(N)|=AMORPH
55 #define MAKE_CRYST(N) *(N)&=~AMORPH
57 #define NLSOP_CLIENT 'c'
58 #define NLSOP_NJOB 'N'
59 #define NLSOP_CJOB 'C'
63 char p_file[MAX_CHARS];
64 char n_e_file[MAX_CHARS];
65 char r_file[MAX_CHARS];
72 int get_data_and_calc(t_event *event,void *allineed);
77 printf("%s -i ip -p port -r/P/n random/profile/neloss file\n",prog);
82 * nlsop internal functions
85 int sputter(d3_lattice *d3_l)
90 size=d3_l->max_x*d3_l->max_y;
94 for(i=0;i<d3_l->max_z-1;i++)
96 memcpy(d3_l->status+offl,d3_l->status+offh,size);
97 memcpy(d3_l->extra+offl,d3_l->extra+offh,size*sizeof(int));
101 memset(d3_l->status+offl,0,size);
102 memset(d3_l->extra+offl,0,size);
107 int process_cell(d3_lattice *d3_l,u32 x,u32 y,u32 z,info *my_info,u32 nel_z)
115 thiz=d3_l->status+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y;
116 conc=d3_l->extra+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y;
118 for(i=-(my_info->range);i<=my_info->range;i++)
120 for(j=-(my_info->range);j<=my_info->range;j++)
124 off=((x+d3_l->max_x+i)%d3_l->max_x)+((y+d3_l->max_y+j)%d3_l->max_x)*d3_l->max_x+z*d3_l->max_x*d3_l->max_y;
125 if(*(d3_l->status+off)&AMORPH) p+=my_info->s*(*(d3_l->extra+off))*URAND_MAX/(i*i+j*j);
129 p+=*conc*my_info->c*URAND_MAX;
132 if(get_rand(URAND_MAX)<=p) MAKE_AMORPH(thiz);
135 /* assume 1-p probability */
136 /* also look for neighbours ! */
137 q=(URAND_MAX-p)>0?URAND_MAX-p:0;
139 j+=(*(d3_l->status+((x+d3_l->max_x+1)%d3_l->max_x)+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)&AMORPH)?1:0;
140 j+=(*(d3_l->status+((x+d3_l->max_x-1)%d3_l->max_x)+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)&AMORPH)?1:0;
141 j+=(*(d3_l->status+x+((y+1+d3_l->max_y)%d3_l->max_y)*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)&AMORPH)?1:0;
142 j+=(*(d3_l->status+x+((y-1+d3_l->max_y)%d3_l->max_y)*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)&AMORPH)?1:0;
143 j+=(*(d3_l->status+x+y*d3_l->max_x+((z+1+d3_l->max_z)%d3_l->max_z)*d3_l->max_x*d3_l->max_y)&AMORPH)?1:0;
144 j+=(*(d3_l->status+x+y*d3_l->max_x+((z-1+d3_l->max_z)%d3_l->max_z)*d3_l->max_x*d3_l->max_y)&AMORPH)?1:0;
147 if(get_rand(URAND_MAX)>p) MAKE_CRYST(thiz);
153 int distrib_c(d3_lattice *d3_l,info *my_info,int step,u32 rj_m,u32 *rj_g)
160 /* put one c ion somewhere in the lattice */
161 x=get_rand(d3_l->max_x);
162 y=get_rand(d3_l->max_y);
163 z=get_rand_reject(d3_l->max_z,rj_m,rj_g);
164 *(d3_l->extra+x+y*d3_l->max_x+z*d3_l->max_x*d3_l->max_y)+=1;
167 if(step%my_info->diff_rate==0)
170 for(i=0;i<d3_l->max_x;i++)
172 for(j=0;j<d3_l->max_y;j++)
174 for(k=0;k<d3_l->max_z;k++)
176 offset=i+j*d3_l->max_x+k*d3_l->max_x*d3_l->max_y;
177 /* case amorph: amorph <- cryst diffusion */
178 if(*(d3_l->status+offset)&AMORPH)
184 off=((i+d3_l->max_x+c)%d3_l->max_x)+j*d3_l->max_x+k*d3_l->max_x*d3_l->max_y;
186 if(!(*(d3_l->status+off)&AMORPH)) carry=(int)(my_info->dr_ac*(*(d3_l->extra+off)));
189 *(d3_l->extra+offset)+=carry;
190 *(d3_l->extra+off)-=carry;
198 off=i+((j+c+d3_l->max_y)%d3_l->max_y)*d3_l->max_x+k*d3_l->max_x*d3_l->max_y;
200 if(!(*(d3_l->status+off)&AMORPH)) carry=(int)(my_info->dr_ac*(*(d3_l->extra+off)));
203 *(d3_l->extra+offset)+=carry;
204 *(d3_l->extra+off)-=carry;
212 off=i+j*d3_l->max_x+(k-1)*d3_l->max_x*d3_l->max_y;
214 if(!*(d3_l->status+off)&AMORPH) carry=(int)(my_info->dr_ac*(*(d3_l->extra+off)));
217 *(d3_l->extra+off)-=carry;
218 *(d3_l->extra+offset)+=carry;
223 off=i+j*d3_l->max_x+(k+1)*d3_l->max_x*d3_l->max_y;
225 if(!*(d3_l->status+off)&AMORPH) carry=(int)(my_info->dr_ac*(*(d3_l->extra+off)));
228 *(d3_l->extra+off)-=carry;
229 *(d3_l->extra+offset)+=carry;
238 } /* if step modulo diff_rate == 0 */
243 u32 get_reject_graph(info *my_info,d3_lattice *d3_l,char *file,u32 *graph) {
252 if((fd=open(file,O_RDONLY))<0)
254 puts("cannot open file to calculate rejection graph");
257 if((flag=(unsigned char *)malloc(d3_l->max_z))==NULL)
259 puts("cannot malloc flag memory for rejection graph");
262 memset(flag,0,d3_l->max_z);
263 memset(graph,0,d3_l->max_z*sizeof(u32));
270 k=read(fd,&buf[i],1);
271 if((buf[i]=='\n')||(k==0)) break;
276 a=atof(p)/10; /* nm */
279 if(a>d3_l->max_z*CELL_LENGTH) k=0;
282 graph[(int)(a/CELL_LENGTH)]=(int)(URAND_MAX/100*b);
283 flag[(int)(a/CELL_LENGTH)]=1;
287 /* do (linear) interpolation here! */
295 while(flag[i]==0&&i<d3_l->max_z) i++;
296 for(k=j+1;k<i;k++) graph[k]=(int)((k-j)*((int)graph[i]-(int)graph[j])/(i-j))+graph[j];
297 if(graph[i]>max) max=graph[i];
302 #ifdef DEBUG_INTERPOL_PROFILE
303 printf("debug: %s (interpolated profile)\n",file);
304 for(i=0;i<d3_l->max_z;i++) printf("%d %d\n",i,graph[i]);
310 void send_data(int signum) {
314 c=gd3_l->max_x*gd3_l->max_y*gd3_l->max_z;
316 network_send(gnet->connection[0].fd,&dc,1);
318 network_send(gnet->connection[0].fd,(unsigned char *)gd3_l,
320 network_send(gnet->connection[0].fd,(unsigned char *)gmy_info,sizeof(info));
322 network_send(gnet->connection[0].fd,gd3_l->status,c*sizeof(unsigned char));
323 network_send(gnet->connection[0].fd,(unsigned char *)gd3_l->extra,
325 network_send(gnet->connection[0].fd,(unsigned char *)gi,sizeof(int));
334 int main(int argc,char **argv)
341 unsigned char data[256];
347 strcpy(server_ip,"");
348 strcpy(p_file,IMP_PROFILE);
349 strcpy(n_e_file,NEL_PROFILE);
353 /* parse/check argv */
354 for(i=1;i<argc;i++) {
355 if(argv[i][0]=='-') {
361 strncpy(server_ip,argv[++i],16);
364 strcpy(r_file,argv[++i]);
367 strcpy(p_file,argv[++i]);
370 strcpy(n_e_file,argv[++i]);
373 port=atoi(argv[++i]);
381 if(!strcmp(server_ip,"")) {
387 event_init(&event,1);
388 event_set_timeout(&event,0,0);
390 /* connect to server */
391 network_init(&net,1);
392 network_set_connection_info(&net,0,server_ip,port);
393 if(network_connect(&net,0)==N_E_CONNECT) {
394 printf("unable to connect to server, aborting ...\n");
397 network_select(&net,0);
399 /* tell server: i am a client, i may work for you */
400 data[0]=NLSOP_CLIENT;
401 network_send(net.connection[0].fd,data,1);
404 event_math(net.connection[0].fd,&event,READ,ADD);
405 event_start(&event,NULL,get_data_and_calc,NULL);
410 int get_data_and_calc(t_event *event,void *allineed) {
422 unsigned char data[256];
437 /* get info (+data) */
438 network_receive(net->connection[0].fd,data,1);
439 if(data[0]==NLSOP_NJOB || data[0]==NLSOP_CJOB) {
440 network_receive(net->connection[0].fd,(unsigned char *)&d3_l,
442 network_receive(net->connection[0].fd,(unsigned char *)&my_info,
445 j=d3_l.max_x*d3_l.max_y*d3_l.max_z;
446 d3_l.status=(unsigned char *)malloc(j*sizeof(unsigned char));
447 if(d3_l.status==NULL) {
448 printf("status alloc failed\n");
451 d3_l.extra=(int *)malloc(j*sizeof(int));
452 if(d3_l.extra==NULL) {
453 printf("extra malloc failed\n");
456 if(data[0]==NLSOP_CJOB) {
457 network_receive(net->connection[0].fd,d3_l.status,
458 j*sizeof(unsigned char));
459 network_receive(net->connection[0].fd,(unsigned char *)d3_l.extra,
461 network_receive(net->connection[0].fd,(unsigned char *)&c_step,
466 /* care for signals */
468 signal(SIGTERM,send_data);
471 if(!strcmp(r_file,"")) rand_init(NULL);
472 else rand_init(r_file);
474 /* compute graphs for random number rejection method */
475 if((c_profile=(u32 *)malloc(d3_l.max_z*sizeof(unsigned int)))==NULL) {
476 puts("failed allocating memory for carbon profile graph");
479 if((n_e_loss=(u32 *)malloc(d3_l.max_z*sizeof(unsigned int)))==NULL) {
480 puts("failed allocating memory for nuclear energy loss graph");
483 ip_max=get_reject_graph(&my_info,&d3_l,p_file,c_profile);
484 ne_max=get_reject_graph(&my_info,&d3_l,n_e_file,n_e_loss);
486 /* array nel_z[] keeping nuclear energy loss values scaled to URAND_MAX */
487 nel_z=(u32 *)malloc(d3_l.max_z*sizeof(unsigned int));
489 printf("failed allocating nel_z array mem\n");
492 for(i=0;i<d3_l.max_z;i++) nel_z[i]=URAND_MAX*(1.0*n_e_loss[i]/ne_max);
494 /* this should be obsolete - z is high enough - we check now! */
495 if(c_profile[d3_l.max_z-1]!=0) {
496 printf("max_z (%d) too small - sputtering not possible\n",d3_l.max_z);
500 /* sputtering really possible ?*/
501 if(n_e_loss[d3_l.max_z-1]!=0)
502 printf("warning: max_z (%d) too small, there may be amorphous volumes\n",
506 * start of simulation
510 while(i<my_info.steps) {
511 for(j=0;j<my_info.cpi;j++) {
512 x_c=get_rand(d3_l.max_x);
513 y_c=get_rand(d3_l.max_y);
514 // z_c=get_rand_reject(d3_l.max_z,ne_max,n_e_loss);
515 z_c=get_rand(d3_l.max_z);
516 process_cell(&d3_l,x_c,y_c,z_c,&my_info,nel_z[z_c]);
518 distrib_c(&d3_l,&my_info,i,ip_max,c_profile);
519 if(i%resave==0 && i!=0) {
525 if(i%my_info.s_rate==0) sputter(&d3_l);
533 /* shutdown/free/close everything now ... */