X-Git-Url: https://www.hackdaworld.org/gitweb/?a=blobdiff_plain;f=sic.c;h=5f2a8db98637c8388e15a7682b45570651168943;hb=20409ee0c545235c9246edde2d3cda5de0ddabde;hp=9cb2c554f42c0d81e98e202ab12223d65c19b976;hpb=56fe12b9eabe0cfa493e2f1b1d0d7d219ae8705b;p=physik%2Fposic.git diff --git a/sic.c b/sic.c index 9cb2c55..5f2a8db 100644 --- a/sic.c +++ b/sic.c @@ -8,118 +8,377 @@ #include #include "moldyn.h" -#include "math/math.h" -#include "init/init.h" -#include "visual/visual.h" - #include "posic.h" -#define TRUE 1 -#define FALSE 0 +/* potential */ +#include "potentials/harmonic_oscillator.h" +#include "potentials/lennard_jones.h" +#include "potentials/albe.h" + +#ifdef TERSOFF_ORIG +#include "potentials/tersoff_orig.h" +#else +#include "potentials/tersoff.h" +#endif + +#define INJECT 1 +#define NR_ATOMS 1 +#define R_C 2.0 +#define T_C 10.0 +#define LCNT 2 + +typedef struct s_hp { + int a_count; /* atom count */ + u8 quit; /* quit mark */ +} t_hp; + +int hook(void *moldyn,void *hook_params) { + + t_moldyn *md; + t_3dvec r,v,dist; + double d; + unsigned char run; + int i,j; + t_atom *atom; + t_hp *hp; + + md=moldyn; + hp=hook_params; + + /* quit */ + if(hp->quit) + return 0; + + /* switch on t scaling */ + if(md->schedule.count==0) + set_pt_scale(md,0,0,T_SCALE_BERENDSEN,100.0); + + /* last schedule add if there is enough carbon inside */ + if(hp->a_count==(INJECT*NR_ATOMS)) { + hp->quit=1; + moldyn_add_schedule(md,5000,1.0); + return 0; + } + + /* more relaxing time for too high temperatures */ + if(md->t-md->t_ref>T_C) { + moldyn_add_schedule(md,10,1.0); + return 0; + } + + /* inject carbon atoms */ + printf("injecting another %d carbon atoms ...(-> %d / %d)\n", + NR_ATOMS,hp->a_count+NR_ATOMS,INJECT*NR_ATOMS); + for(j=0;jrandom))-0.5)*md->dim.x*0.37; + r.y=(rand_get_double(&(md->random))-0.5)*md->dim.y*0.37; + r.z=(rand_get_double(&(md->random))-0.5)*md->dim.z*0.37; + /* assume valid coordinates */ + run=0; + for(i=0;icount;i++) { + atom=&(md->atom[i]); + v3_sub(&dist,&(atom->r),&r); + d=v3_absolute_square(&dist); + /* reject coordinates */ + if(da_count+=NR_ATOMS; + + /* add schedule for simulating injected atoms ;) */ + moldyn_add_schedule(md,10,1.0); + + return 0; +} int main(int argc,char **argv) { + /* check argv */ + if(argc!=3) { + printf("[sic] usage: %s \n",argv[0]); + return -1; + } + /* main moldyn structure */ t_moldyn md; + /* hook parameter structure */ + t_hp hookparam; + /* potential parameters */ - t_lj_params lj; - t_ho_params ho; t_tersoff_mult_params tp; + t_albe_mult_params ap; - /* misc variables, mainly to initialize stuff */ - t_3dvec r,v; + /* atom injection counter */ + int inject; - /* temperature */ - double t; + /* testing location & velocity vector */ + t_3dvec r,v; + memset(&r,0,sizeof(t_3dvec)); + memset(&v,0,sizeof(t_3dvec)); /* initialize moldyn */ - printf("[sic] moldyn init\n"); moldyn_init(&md,argc,argv); /* choose integration algorithm */ - printf("[sic] setting integration algorithm\n"); set_int_alg(&md,MOLDYN_INTEGRATE_VERLET); /* choose potential */ - printf("[sic] selecting potential\n"); - //set_potential1b(&md,tersoff_mult_1bp,&tp); - //set_potential2b(&md,tersoff_mult_2bp,&tp); - //set_potential3b(&md,tersoff_mult_3bp,&tp); - set_potential2b(&md,lennard_jones,&lj); +#ifdef ALBE + set_potential3b_j1(&md,albe_mult_3bp_j1); + set_potential3b_k1(&md,albe_mult_3bp_k1); + set_potential3b_j2(&md,albe_mult_3bp_j2); + set_potential3b_k2(&md,albe_mult_3bp_k2); +#else + set_potential1b(&md,tersoff_mult_1bp); + set_potential3b_j1(&md,tersoff_mult_3bp_j1); + set_potential3b_k1(&md,tersoff_mult_3bp_k1); + set_potential3b_j2(&md,tersoff_mult_3bp_j2); + set_potential3b_k2(&md,tersoff_mult_3bp_k2); +#endif + +#ifdef ALBE + set_potential_params(&md,&ap); +#else + set_potential_params(&md,&tp); +#endif + + /* cutoff radius */ +#ifdef ALBE + set_cutoff(&md,ALBE_S_SI); +#else + set_cutoff(&md,TM_S_SI); +#endif /* * potential parameters */ - /* lennard jones */ - lj.sigma6=LJ_SIGMA_SI*LJ_SIGMA_SI*LJ_SIGMA_SI; - lj.sigma6*=lj.sigma6; - lj.sigma12=lj.sigma6*lj.sigma6; - lj.epsilon4=4.0*LJ_EPSILON_SI; + /* + * tersoff mult potential parameters for SiC + */ + tp.S[0]=TM_S_SI; + tp.R[0]=TM_R_SI; + tp.A[0]=TM_A_SI; + tp.B[0]=TM_B_SI; + tp.lambda[0]=TM_LAMBDA_SI; + tp.mu[0]=TM_MU_SI; + tp.beta[0]=TM_BETA_SI; + tp.n[0]=TM_N_SI; + tp.c[0]=TM_C_SI; + tp.d[0]=TM_D_SI; + tp.h[0]=TM_H_SI; - /* harmonic oscillator */ - ho.equilibrium_distance=0.25*sqrt(3.0)*LC_SI; - ho.spring_constant=1; + tp.S[1]=TM_S_C; + tp.R[1]=TM_R_C; + tp.A[1]=TM_A_C; + tp.B[1]=TM_B_C; + tp.lambda[1]=TM_LAMBDA_C; + tp.mu[1]=TM_MU_C; + tp.beta[1]=TM_BETA_C; + tp.n[1]=TM_N_C; + tp.c[1]=TM_C_C; + tp.d[1]=TM_D_C; + tp.h[1]=TM_H_C; - /* cutoff radius */ - printf("[sic] setting cutoff radius\n"); - set_cutoff(&md,LC_SI); + tp.chi=TM_CHI_SIC; + + tersoff_mult_complete_params(&tp); + + /* + * albe mult potential parameters for SiC + */ + ap.S[0]=ALBE_S_SI; + ap.R[0]=ALBE_R_SI; + ap.A[0]=ALBE_A_SI; + ap.B[0]=ALBE_B_SI; + ap.r0[0]=ALBE_R0_SI; + ap.lambda[0]=ALBE_LAMBDA_SI; + ap.mu[0]=ALBE_MU_SI; + ap.gamma[0]=ALBE_GAMMA_SI; + ap.c[0]=ALBE_C_SI; + ap.d[0]=ALBE_D_SI; + ap.h[0]=ALBE_H_SI; + + ap.S[1]=ALBE_S_C; + ap.R[1]=ALBE_R_C; + ap.A[1]=ALBE_A_C; + ap.B[1]=ALBE_B_C; + ap.r0[1]=ALBE_R0_C; + ap.lambda[1]=ALBE_LAMBDA_C; + ap.mu[1]=ALBE_MU_C; + ap.gamma[1]=ALBE_GAMMA_C; + ap.c[1]=ALBE_C_C; + ap.d[1]=ALBE_D_C; + ap.h[1]=ALBE_H_C; + + ap.Smixed=ALBE_S_SIC; + ap.Rmixed=ALBE_R_SIC; + ap.Amixed=ALBE_A_SIC; + ap.Bmixed=ALBE_B_SIC; + ap.r0_mixed=ALBE_R0_SIC; + ap.lambda_m=ALBE_LAMBDA_SIC; + ap.mu_m=ALBE_MU_SIC; + ap.gamma_m=ALBE_GAMMA_SIC; + ap.c_mixed=ALBE_C_SIC; + ap.d_mixed=ALBE_D_SIC; + ap.h_mixed=ALBE_H_SIC; + + albe_mult_complete_params(&ap); /* set (initial) dimensions of simulation volume */ - printf("[sic] setting dimensions\n"); - set_dim(&md,10*LC_SI,10*LC_SI,10*LC_SI,TRUE); +#ifdef ALBE + set_dim(&md,LCNT*ALBE_LC_SI,LCNT*ALBE_LC_SI,LCNT*ALBE_LC_SI,TRUE); + //set_dim(&md,LCNT*ALBE_LC_C,LCNT*ALBE_LC_C,LCNT*ALBE_LC_C,TRUE); + //set_dim(&md,LCNT*ALBE_LC_SIC,LCNT*ALBE_LC_SIC,LCNT*ALBE_LC_SIC,TRUE); +#else + //set_dim(&md,LCNT*LC_SI,LCNT*LC_SI,LCNT*LC_SI,TRUE); + //set_dim(&md,LCNT*LC_C,LCNT*LC_C,LCNT*LC_C,TRUE); + set_dim(&md,LCNT*TM_LC_SIC,LCNT*TM_LC_SIC,LCNT*TM_LC_SIC,TRUE); +#endif /* set periodic boundary conditions in all directions */ - printf("[sic] setting periodic boundary conditions\n"); set_pbc(&md,TRUE,TRUE,TRUE); /* create the lattice / place atoms */ - printf("[sic] creating atoms\n"); - memset(&v,0,sizeof(t_3dvec)); - r.y=0; - r.z=0; - r.x=0.23*sqrt(3.0)*LC_SI/2.0; - add_atom(&md,SI,M_SI,0,ATOM_ATTR_2BP,&r,&v); - r.x=-r.x; - add_atom(&md,SI,M_SI,0,ATOM_ATTR_2BP,&r,&v); - printf("[sic] check: there are %d atoms\n",md.count); - printf("[sic] check: atoms x pos: %.15f %.15f\n",md.atom[0].r.x,md.atom[1].r.x); - printf("[sic] check: atoms x vel: %.15f %.15f\n",md.atom[0].v.x,md.atom[1].v.x); - printf("[sic] check: atoms mass: %.35f %.35f\n",md.atom[0].mass,md.atom[1].mass); - - /* set temperature */ - printf("[sic] setting temperature\n"); - set_temperature(&md,0.0); +#ifdef ALBE + create_lattice(&md,DIAMOND,ALBE_LC_SI,SI,M_SI, + //create_lattice(&md,DIAMOND,ALBE_LC_C,C,M_C, +#else + //create_lattice(&md,DIAMOND,LC_SI,SI,M_SI, +#endif + ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + // ATOM_ATTR_2BP|ATOM_ATTR_HB, + 0,LCNT,LCNT,LCNT,NULL); + // 1,LCNT,LCNT,LCNT,NULL); + + /* create zinkblende structure */ + /* +#ifdef ALBE + r.x=0.5*0.25*ALBE_LC_SIC; r.y=r.x; r.z=r.x; + create_lattice(&md,FCC,ALBE_LC_SIC,SI,M_SI, + ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + 0,LCNT,LCNT,LCNT,&r); + r.x+=0.25*ALBE_LC_SIC; r.y=r.x; r.z=r.x; + create_lattice(&md,FCC,ALBE_LC_SIC,C,M_C, + ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + 1,LCNT,LCNT,LCNT,&r); +#else + r.x=0.5*0.25*TM_LC_SIC; r.y=r.x; r.z=r.x; + create_lattice(&md,FCC,TM_LC_SIC,SI,M_SI, + ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + 0,LCNT,LCNT,LCNT,&r); + r.x+=0.25*TM_LC_SIC; r.y=r.x; r.z=r.x; + create_lattice(&md,FCC,TM_LC_SIC,C,M_C, + ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + 1,LCNT,LCNT,LCNT,&r); +#endif + */ + + /* check for right atom placing */ + moldyn_bc_check(&md); + + /* testing configuration */ + //r.x=0.27*sqrt(3.0)*LC_SI/2.0; v.x=0; + //r.x=(TM_S_SI+TM_R_SI)/4.0; v.x=0; + //r.y=0; v.y=0; + //r.z=0; v.z=0; + //add_atom(&md,SI,M_SI,0, + // ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + // ATOM_ATTR_2BP|ATOM_ATTR_HB, + // &r,&v); + //r.x=-r.x; v.x=-v.x; + //r.y=0; v.y=0; + //r.z=0; v.z=0; + //add_atom(&md,SI,M_SI,0, + // ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + // ATOM_ATTR_2BP|ATOM_ATTR_HB, + // &r,&v); + //r.z=0.27*sqrt(3.0)*LC_SI/2.0; v.z=0; + //r.x=(TM_S_SI+TM_R_SI)/4.0; v.x=0; + //r.y=0; v.y=0; + //r.x=0; v.x=0; + //add_atom(&md,SI,M_SI,0, + // ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + // ATOM_ATTR_2BP|ATOM_ATTR_HB, + // &r,&v); + //r.z=-r.z; v.z=-v.z; + //r.y=0; v.y=0; + //r.x=0; v.x=0; + //add_atom(&md,SI,M_SI,0, + // ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + // ATOM_ATTR_2BP|ATOM_ATTR_HB, + // &r,&v); + + /* set temperature & pressure */ + set_temperature(&md,atof(argv[2])+273.0); + set_pressure(&md,BAR); + + /* set amount of steps to skip before average calc */ + set_avg_skip(&md,1000); + + /* set p/t scaling */ + //set_pt_scale(&md,0,0,T_SCALE_BERENDSEN,100.0); + //set_pt_scale(&md,P_SCALE_BERENDSEN,0.001, + // T_SCALE_BERENDSEN,100.0); + //set_pt_scale(&md,0,0,T_SCALE_DIRECT,1.0); + //set_pt_scale(&md,P_SCALE_BERENDSEN,0.001,0,0); - /* initial thermal fluctuations of particles */ - printf("[sic] thermal init\n"); - thermal_init(&md); - printf("[sic] check: there are %d atoms\n",md.count); - printf("[sic] check: atoms x pos: %.15f %.15f\n",md.atom[0].r.x,md.atom[1].r.x); - printf("[sic] check: atoms x vel: %.15f %.15f\n",md.atom[0].v.x,md.atom[1].v.x); + /* initial thermal fluctuations of particles (in equilibrium) */ + thermal_init(&md,TRUE); /* create the simulation schedule */ - printf("[sic] adding schedule\n"); - moldyn_add_schedule(&md,10000,1.0e-12); + moldyn_add_schedule(&md,1000,1.0); + //moldyn_add_schedule(&md,1000,1.0); + //moldyn_add_schedule(&md,1000,1.0); + //moldyn_add_schedule(&md,1000,1.0); + //moldyn_add_schedule(&md,1000,1.0); + //moldyn_add_schedule(&md,1000,1.0); + /* adding atoms */ + //for(inject=0;inject