void cloverndpoly_heatbath(const int id, hamiltonian_field_t * const hf) {
int j;
monomial * mnl = &monomial_list[id];
spinor *up0, *dn0, *up1, *dn1, *dummy;
double atime, etime;
atime = gettime();
ndpoly_set_global_parameter(mnl, 0);
g_mu3 = 0.;
init_sw_fields();
sw_term((const su3**)hf->gaugefield, mnl->kappa, mnl->c_sw);
sw_invert_nd(mnl->mubar*mnl->mubar - mnl->epsbar*mnl->epsbar);
// we measure before trajectory!
if((mnl->rec_ev != 0) && (hf->traj_counter%mnl->rec_ev == 0)) {
phmc_compute_ev(hf->traj_counter-1, id, &Qsw_pm_ndbipsi);
}
mnl->energy0 = 0.;
random_spinor_field_eo(g_chi_up_spinor_field[0], mnl->rngrepro, RN_GAUSS);
mnl->energy0 = square_norm(g_chi_up_spinor_field[0], VOLUME/2, 1);
random_spinor_field_eo(g_chi_dn_spinor_field[0], mnl->rngrepro, RN_GAUSS);
mnl->energy0 += square_norm(g_chi_dn_spinor_field[0], VOLUME/2, 1);
Qsw_ndpsi(g_chi_up_spinor_field[1], g_chi_dn_spinor_field[1],
g_chi_up_spinor_field[0], g_chi_dn_spinor_field[0]);
up0 = g_chi_up_spinor_field[0];
up1 = g_chi_up_spinor_field[1];
dn0 = g_chi_dn_spinor_field[0];
dn1 = g_chi_dn_spinor_field[1];
for(j = 1; j < (mnl->MDPolyDegree); j++){
Qsw_tau1_sub_const_ndpsi(up0, dn0,
up1, dn1,
mnl->MDPolyRoots[mnl->MDPolyDegree-2+j], phmc_Cpol, phmc_invmaxev);
dummy = up1; up1 = up0; up0 = dummy;
dummy = dn1; dn1 = dn0; dn0 = dummy;
}
Ptilde_ndpsi(up0, dn0, mnl->PtildeCoefs,
mnl->PtildeDegree, up1, dn1, &Qsw_pm_ndpsi);
assign(mnl->pf, up0, VOLUME/2);
assign(mnl->pf2, dn0, VOLUME/2);
etime = gettime();
if(g_proc_id == 0) {
if(g_debug_level > 1) {
printf("# Time for %s monomial heatbath: %e s\n", mnl->name, etime-atime);
}
if(g_debug_level > 3) {
printf("called cloverndpoly_heatbath for id %d energy %f\n", id, mnl->energy0);
}
}
return;
}
double cloverndpoly_acc(const int id, hamiltonian_field_t * const hf) {
int j;
monomial * mnl = &monomial_list[id];
spinor *up0, *dn0, *up1, *dn1, *dummy;
double atime, etime;
atime = gettime();
ndpoly_set_global_parameter(mnl, 0);
g_mu3 = 0.;
sw_term((const su3**) hf->gaugefield, mnl->kappa, mnl->c_sw);
sw_invert_nd(mnl->mubar*mnl->mubar - mnl->epsbar*mnl->epsbar);
mnl->energy1 = 0.;
up0 = g_chi_up_spinor_field[0];
up1 = g_chi_up_spinor_field[1];
dn0 = g_chi_dn_spinor_field[0];
dn1 = g_chi_dn_spinor_field[1];
/* This is needed if we consider only "1" in eq. 9 */
assign(up0, mnl->pf , VOLUME/2);
assign(dn0, mnl->pf2, VOLUME/2);
for(j = 1; j <= (mnl->MDPolyDegree-1); j++) {
Qsw_tau1_sub_const_ndpsi(up1, dn1, up0, dn0, mnl->MDPolyRoots[j-1]);
dummy = up1; up1 = up0; up0 = dummy;
dummy = dn1; dn1 = dn0; dn0 = dummy;
/* result always in up0 and dn0 */
}
mnl->energy1 = square_norm(up0, VOLUME/2, 1);
mnl->energy1 += square_norm(dn0, VOLUME/2, 1);
etime = gettime();
if(g_proc_id == 0) {
if(g_debug_level > 1) {
printf("# Time for %s monomial acc step: %e s\n", mnl->name, etime-atime);
}
if(g_debug_level > 3) {
printf("called cloverndpoly_acc for id %d dH = %1.10e\n", id, mnl->energy1 - mnl->energy0);
}
}
return(mnl->energy1 - mnl->energy0);
}
void cloverndpoly_derivative(const int id, hamiltonian_field_t * const hf) {
int j, k;
monomial * mnl = &monomial_list[id];
double atime, etime;
atime = gettime();
for(int i = 0; i < VOLUME; i++) {
for(int mu = 0; mu < 4; mu++) {
_su3_zero(swm[i][mu]);
_su3_zero(swp[i][mu]);
}
}
ndpoly_set_global_parameter(mnl, 0);
// we compute the clover term (1 + T_ee(oo)) for all sites x
sw_term( (const su3**) hf->gaugefield, mnl->kappa, mnl->c_sw);
// we invert it for the even sites only
sw_invert_nd(mnl->mubar*mnl->mubar - mnl->epsbar*mnl->epsbar);
mnl->forcefactor = -phmc_Cpol*mnl->EVMaxInv;
/* Recall: The GAMMA_5 left of delta M_eo is done in deriv_Sb !!! */
/* Here comes the definitions for the chi_j fields */
/* from j=0 (chi_0 = phi) ..... to j = n-1 */
/* in g_chi_up_spinor_field[0] (g_chi_dn_spinor_field[0] we expect */
/* to find the phi field, the pseudo fermion field */
/* i.e. must be equal to mnl->pf (mnl->pf2) */
assign(g_chi_up_spinor_field[0], mnl->pf, VOLUME/2);
assign(g_chi_dn_spinor_field[0], mnl->pf2, VOLUME/2);
for(k = 1; k < (mnl->MDPolyDegree-1); k++) {
Qsw_tau1_sub_const_ndpsi(g_chi_up_spinor_field[k], g_chi_dn_spinor_field[k],
g_chi_up_spinor_field[k-1], g_chi_dn_spinor_field[k-1],
mnl->MDPolyRoots[k-1]);
}
/* Here comes the remaining fields chi_k ; k=n,...,2n-1 */
/*They are evaluated step-by-step overwriting the same field (mnl->MDPolyDegree)*/
assign(g_chi_up_spinor_field[mnl->MDPolyDegree], g_chi_up_spinor_field[mnl->MDPolyDegree-2], VOLUME/2);
assign(g_chi_dn_spinor_field[mnl->MDPolyDegree], g_chi_dn_spinor_field[mnl->MDPolyDegree-2], VOLUME/2);
for(j = (mnl->MDPolyDegree-1); j > 0; j--) {
assign(g_chi_up_spinor_field[mnl->MDPolyDegree-1], g_chi_up_spinor_field[mnl->MDPolyDegree], VOLUME/2);
assign(g_chi_dn_spinor_field[mnl->MDPolyDegree-1], g_chi_dn_spinor_field[mnl->MDPolyDegree], VOLUME/2);
Qsw_tau1_sub_const_ndpsi(g_chi_up_spinor_field[mnl->MDPolyDegree], g_chi_dn_spinor_field[mnl->MDPolyDegree],
g_chi_up_spinor_field[mnl->MDPolyDegree-1], g_chi_dn_spinor_field[mnl->MDPolyDegree-1],
mnl->MDPolyRoots[2*mnl->MDPolyDegree-3-j]);
/* Get the even parts of the (j-1)th chi_spinors */
H_eo_sw_ndpsi(mnl->w_fields[0], mnl->w_fields[1],
g_chi_up_spinor_field[j-1], g_chi_dn_spinor_field[j-1]);
/* \delta M_eo sandwitched by chi[j-1]_e^\dagger and chi[2N-j]_o */
deriv_Sb(EO, mnl->w_fields[0], g_chi_up_spinor_field[mnl->MDPolyDegree], hf, mnl->forcefactor);/* UP */
deriv_Sb(EO, mnl->w_fields[1], g_chi_dn_spinor_field[mnl->MDPolyDegree], hf, mnl->forcefactor);/* DN */
/* Get the even parts of the (2N-j)-th chi_spinors */
H_eo_sw_ndpsi(mnl->w_fields[2], mnl->w_fields[3],
g_chi_up_spinor_field[mnl->MDPolyDegree], g_chi_dn_spinor_field[mnl->MDPolyDegree]);
/* \delta M_oe sandwitched by chi[j-1]_o^\dagger and chi[2N-j]_e */
deriv_Sb(OE, g_chi_up_spinor_field[j-1], mnl->w_fields[2], hf, mnl->forcefactor);
deriv_Sb(OE, g_chi_dn_spinor_field[j-1], mnl->w_fields[3], hf, mnl->forcefactor);
// even/even sites sandwiched by gamma_5 Y_e and gamma_5 X_e
sw_spinor(EE, mnl->w_fields[3], mnl->w_fields[0], mnl->forcefactor);
// odd/odd sites sandwiched by gamma_5 Y_o and gamma_5 X_o
sw_spinor(OO, g_chi_up_spinor_field[j-1], g_chi_dn_spinor_field[mnl->MDPolyDegree], mnl->forcefactor);
// even/even sites sandwiched by gamma_5 Y_e and gamma_5 X_e
sw_spinor(EE, mnl->w_fields[2], mnl->w_fields[1], mnl->forcefactor);
// odd/odd sites sandwiched by gamma_5 Y_o and gamma_5 X_o
sw_spinor(OO, g_chi_dn_spinor_field[j-1], g_chi_up_spinor_field[mnl->MDPolyDegree], mnl->forcefactor);
}
// trlog part does not depend on the normalisation of the polynomial
sw_deriv_nd(EE);
sw_all(hf, mnl->kappa, mnl->c_sw);
etime = gettime();
if(g_debug_level > 1 && g_proc_id == 0) {
printf("# Time for %s monomial derivative: %e s\n", mnl->name, etime-atime);
}
return;
}