X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=sic.c;h=751cb066d10ea97e3b19334875ba1a9f031edb35;hb=refs%2Fheads%2Forigin;hp=a890270fede20f6080fec30a8f3f9b63af997c16;hpb=9f6af2cd82a72451741b68ca333f94c6c1d2eec5;p=physik%2Fposic.git diff --git a/sic.c b/sic.c index a890270..751cb06 100644 --- a/sic.c +++ b/sic.c @@ -8,17 +8,88 @@ #include #include "moldyn.h" - #include "posic.h" +/* 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 160 +#define NR_ATOMS 10 + +typedef struct s_hp { + int a_count; /* atom count */ + u8 quit; /* quit mark */ +} t_hp; + +#define TC 50 + 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,10000,1.0); + return 0; + } + + /* more relaxing time for too high temperatures */ + if(md->t-md->t_ref>TC) { + moldyn_add_schedule(md,100,1.0); + return 0; + } + + /* inject carbon atoms */ + printf("injecting another 10 carbon atoms ...\n"); + for(j=0;jrandom))*md->dim.x*0.37; + r.y=rand_get_double(&(md->random))*md->dim.y*0.37; + r.z=rand_get_double(&(md->random))*md->dim.z*0.37; + for(i=0;icount;i++) { + atom=&(md->atom[i]); + v3_sub(&dist,&(atom->r),&r); + d=v3_absolute_square(&dist); + if(d>1.0) + run=0; + } + } + v.x=0; v.y=0; v.z=0; + add_atom(md,C,M_C,1, + ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, + &r,&v); + } + hp->a_count+=NR_ATOMS; - /* decrease temperature in every hook */ - set_temperature(md,md->t_ref-100.0); + /* add schedule for simulating injected atoms ;) */ + moldyn_add_schedule(md,100,1.0); return 0; } @@ -34,13 +105,20 @@ int main(int argc,char **argv) { /* 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; + + /* atom injection counter */ + int inject; /* testing location & velocity vector */ t_3dvec r,v; + memset(&r,0,sizeof(t_3dvec)); + memset(&v,0,sizeof(t_3dvec)); /* initialize moldyn */ moldyn_init(&md,argc,argv); @@ -49,32 +127,36 @@ int main(int argc,char **argv) { set_int_alg(&md,MOLDYN_INTEGRATE_VERLET); /* choose potential */ - //set_potential1b(&md,tersoff_mult_1bp,&tp); - //set_potential2b(&md,tersoff_mult_2bp,&tp); - //set_potential2b_post(&md,tersoff_mult_post_2bp,&tp); - //set_potential3b(&md,tersoff_mult_3bp,&tp); - set_potential2b(&md,lennard_jones,&lj); - //set_potential2b(&md,harmonic_oscillator,&ho); +#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 */ - //set_cutoff(&md,TM_S_SI); - set_cutoff(&md,2*LC_SI); +#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; - lj.uc=lj.epsilon4*(lj.sigma12/pow(md.cutoff,12.0)-lj.sigma6/pow(md.cutoff,6)); - - /* harmonic oscillator */ - ho.equilibrium_distance=0.25*sqrt(3.0)*LC_SI; - ho.spring_constant=.1; - /* * tersoff mult potential parameters for SiC */ @@ -106,22 +188,102 @@ int main(int argc,char **argv) { 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 */ - set_dim(&md,6*LC_SI,6*LC_SI,6*LC_SI,TRUE); +#ifdef ALBE + set_dim(&md,20*ALBE_LC_SI,20*ALBE_LC_SI,20*ALBE_LC_SI,TRUE); + //set_dim(&md,8*ALBE_LC_C,8*ALBE_LC_C,8*ALBE_LC_C,TRUE); + //set_dim(&md,8*ALBE_LC_SIC,8*ALBE_LC_SIC,8*ALBE_LC_SIC,TRUE); +#else + //set_dim(&md,8*LC_SI,8*LC_SI,8*LC_SI,TRUE); + //set_dim(&md,8*LC_C,8*LC_C,8*LC_C,TRUE); + set_dim(&md,8*TM_LC_SIC,8*TM_LC_SIC,8*TM_LC_SIC,TRUE); +#endif /* set periodic boundary conditions in all directions */ set_pbc(&md,TRUE,TRUE,TRUE); /* create the lattice / place atoms */ - create_lattice(&md,DIAMOND,LC_SI,SI,M_SI, - // ATOM_ATTR_1BP|ATOM_ATTR_2BP|ATOM_ATTR_3BP|ATOM_ATTR_HB, - ATOM_ATTR_2BP|ATOM_ATTR_HB, - 0,6,6,6); +#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, + 0,20,20,20,NULL); + // 1,8,8,8,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, + 0,8,8,8,&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, + 1,8,8,8,&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, + 0,8,8,8,&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, + 1,8,8,8,&r); +#endif + */ + + /* check for right atom placing */ moldyn_bc_check(&md); /* testing configuration */ - //r.x=0.28*sqrt(3)*LC_SI/2; v.x=0; - //r.x=1.75*LC_SI; v.x=-0.01; + //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, @@ -135,47 +297,65 @@ int main(int argc,char **argv) { // 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); - /* setting a nearest neighbour distance for the moldyn checks */ - set_nn_dist(&md,0.25*sqrt(3.0)*LC_SI); /* diamond ! */ - - /* set temperature */ - //set_temperature(&md,273.0+1410.0); - //set_temperature(&md,273.0+450.0); - //set_temperature(&md,273.0); - //set_temperature(&md,1.0); - //set_temperature(&md,0.0); + /* set temperature & pressure */ set_temperature(&md,atof(argv[2])+273.0); + set_pressure(&md,BAR); - /* set pressure */ - set_pressure(&md,ATM); + /* set amount of steps to skip before average calc */ + set_avg_skip(&md,500); /* set p/t scaling */ - //set_pt_scale(&md,P_SCALE_BERENDSEN,100.0, + //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_BERENDSEN,100.0); - //set_pt_scale(&md,P_SCALE_BERENDSEN,100.0,0,0); + //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 (in equilibrium) */ thermal_init(&md,TRUE); /* create the simulation schedule */ - moldyn_add_schedule(&md,100,1.0); - moldyn_add_schedule(&md,100,1.0); - moldyn_add_schedule(&md,100,1.0); - moldyn_add_schedule(&md,100,1.0); - moldyn_add_schedule(&md,100,1.0); - moldyn_add_schedule(&md,100,1.0); - moldyn_add_schedule(&md,100,1.0); - moldyn_add_schedule(&md,100,1.0); + 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); + //moldyn_add_schedule(&md,1000,1.0); + /* adding atoms */ + //for(inject=0;inject