int mat_invert( field_offset src, field_offset dest ){
register int i;
register site *s;
int iters;
if( src != F_OFFSET(CHI) ){
FORALLSITES(i,s) s->CHI = *(wilson_vector *)F_PT(s,src);
}
/* Load inversion control structure */
qic.prec = PRECISION;
qic.min = 0;
qic.max = niter;
qic.nrestart = 5;
qic.resid = rsqprop;
qic.start_flag = 0;
/* Load Dirac matrix parameters */
dcp.Kappa = kappa;
dcp.Clov_c = clov_c;
dcp.U0 = u0;
#ifdef BI
iters =
wilson_invert_site(F_OFFSET(CHI),dest,
bicgilu_cl_site,&qic,(void *)&dcp);
#else
iters =
wilson_invert_site(F_OFFSET(CHI),dest,
cgilu_cl_site,&qic,(void *)&dcp);
#endif
return(iters);
}
void generate_heavy_zonked(int color, int spin,
Real Kappa, int inverter_type, field_offset dest)
{
int MinCG;
if( this_node == 0 ) printf("Starting heavy_zonked inversions, kappa = %f\n",
Kappa);
/*** do the heavy quark inversion ****/
load_wilson_source(F_OFFSET(heavy_smear_func), F_OFFSET(psi), color, spin) ;
/* To be sure we "hop" far enough in the inversion */
/* Note: one iteration advances two time slices
so nt covers the lattice twice */
MinCG = nt;
/* Load inversion control structure */
qic_zonked_heavy.prec = PRECISION;
qic_zonked_heavy.min = MinCG;
qic_zonked_heavy.max = niter_zonked_heavy;
qic_zonked_heavy.nrestart = nrestart_zonked_heavy;
qic_zonked_heavy.resid = resid_zonked_heavy;
qic_zonked_heavy.start_flag = START_ZERO_GUESS;
#ifdef CLOVER
/* Load Dirac matrix parameters */
dcp.Kappa = Kappa;
dcp.Clov_c = clov_c;
dcp.U0 = u0;
/* Use specified inverter */
if(inverter_type == HOPILU)
{
qic_zonked_heavy.nrestart = 1; /* No restarts with hopping inverter */
wilson_invert_site(F_OFFSET(psi), dest,
hopilu_cl_site,&qic_zonked_heavy,(void *)&dcp);
}
else if(inverter_type == BICGILU)
wilson_invert_site(F_OFFSET(psi), dest,
bicgilu_cl_site,&qic_zonked_heavy,(void *)&dcp);
else
{
printf("generate_heavy_zonked: ERROR inverter type %d unknown\n",
inverter_type);
terminate(1);
}
#else
/* Load Dirac matrix parameters */
dwp.Kappa = Kappa;
wilson_invert_site(F_OFFSET(psi), dest,
mrilu_w_site,&qic_zonked_heavy,(void *)&dwp);
#endif
/*** store the quark propagator to disk ****/
} /*** end of generate_and_store_heavy_zonked ***/