void do_force(FILE *fplog,t_commrec *cr, t_inputrec *inputrec, int step,t_nrnb *nrnb,gmx_wallcycle_t wcycle, gmx_localtop_t *top, gmx_groups_t *groups, matrix box,rvec x[],history_t *hist, rvec f[],rvec buf[], tensor vir_force, t_mdatoms *mdatoms, gmx_enerdata_t *enerd,t_fcdata *fcd, real lambda,t_graph *graph, t_forcerec *fr,gmx_vsite_t *vsite,rvec mu_tot, real t,FILE *field,gmx_edsam_t ed, int flags) { static rvec box_size; int cg0,cg1,i,j; int start,homenr; static double mu[2*DIM]; rvec mu_tot_AB[2]; bool bSepDVDL,bStateChanged,bNS,bFillGrid,bCalcCGCM,bBS,bDoForces; matrix boxs; real e,v,dvdl; t_pbc pbc; float cycles_ppdpme,cycles_pme,cycles_force; start = mdatoms->start; homenr = mdatoms->homenr; bSepDVDL = (fr->bSepDVDL && do_per_step(step,inputrec->nstlog)); clear_mat(vir_force); if (PARTDECOMP(cr)) { pd_cg_range(cr,&cg0,&cg1); } else { cg0 = 0; if (DOMAINDECOMP(cr)) cg1 = cr->dd->ncg_tot; else cg1 = top->cgs.nr; if (fr->n_tpi > 0) cg1--; } bStateChanged = (flags & GMX_FORCE_STATECHANGED); bNS = (flags & GMX_FORCE_NS); bFillGrid = (bNS && bStateChanged); bCalcCGCM = (bFillGrid && !DOMAINDECOMP(cr)); bDoForces = (flags & GMX_FORCE_FORCES); if (bStateChanged) { update_forcerec(fplog,fr,box); /* Calculate total (local) dipole moment in a temporary common array. * This makes it possible to sum them over nodes faster. */ calc_mu(start,homenr, x,mdatoms->chargeA,mdatoms->chargeB,mdatoms->nChargePerturbed, mu,mu+DIM); } if (fr->ePBC != epbcNONE) { /* Compute shift vectors every step, * because of pressure coupling or box deformation! */ if (DYNAMIC_BOX(*inputrec) && bStateChanged) calc_shifts(box,fr->shift_vec); if (bCalcCGCM) { put_charge_groups_in_box(fplog,cg0,cg1,fr->ePBC,box, &(top->cgs),x,fr->cg_cm); inc_nrnb(nrnb,eNR_CGCM,homenr); inc_nrnb(nrnb,eNR_RESETX,cg1-cg0); } else if (EI_ENERGY_MINIMIZATION(inputrec->eI) && graph) { unshift_self(graph,box,x); } } else if (bCalcCGCM) { calc_cgcm(fplog,cg0,cg1,&(top->cgs),x,fr->cg_cm); inc_nrnb(nrnb,eNR_CGCM,homenr); } if (bCalcCGCM) { if (PAR(cr)) { move_cgcm(fplog,cr,fr->cg_cm); } if (gmx_debug_at) pr_rvecs(debug,0,"cgcm",fr->cg_cm,top->cgs.nr); } #ifdef GMX_MPI if (!(cr->duty & DUTY_PME)) { /* Send particle coordinates to the pme nodes. * Since this is only implemented for domain decomposition * and domain decomposition does not use the graph, * we do not need to worry about shifting. */ wallcycle_start(wcycle,ewcPP_PMESENDX); GMX_MPE_LOG(ev_send_coordinates_start); bBS = (inputrec->nwall == 2); if (bBS) { copy_mat(box,boxs); svmul(inputrec->wall_ewald_zfac,boxs[ZZ],boxs[ZZ]); } gmx_pme_send_x(cr,bBS ? boxs : box,x,mdatoms->nChargePerturbed,lambda); GMX_MPE_LOG(ev_send_coordinates_finish); wallcycle_stop(wcycle,ewcPP_PMESENDX); } #endif /* GMX_MPI */ /* Communicate coordinates and sum dipole if necessary */ if (PAR(cr)) { wallcycle_start(wcycle,ewcMOVEX); if (DOMAINDECOMP(cr)) { dd_move_x(cr->dd,box,x,buf); } else { move_x(fplog,cr,GMX_LEFT,GMX_RIGHT,x,nrnb); } /* When we don't need the total dipole we sum it in global_stat */ if (NEED_MUTOT(*inputrec)) gmx_sumd(2*DIM,mu,cr); wallcycle_stop(wcycle,ewcMOVEX); } for(i=0; i<2; i++) for(j=0;j<DIM;j++) mu_tot_AB[i][j] = mu[i*DIM + j]; if (fr->efep == efepNO) copy_rvec(mu_tot_AB[0],mu_tot); else for(j=0; j<DIM; j++) mu_tot[j] = (1.0 - lambda)*mu_tot_AB[0][j] + lambda*mu_tot_AB[1][j]; /* Reset energies */ reset_energies(&(inputrec->opts),fr,bNS,enerd,MASTER(cr)); if (bNS) { wallcycle_start(wcycle,ewcNS); if (graph && bStateChanged) /* Calculate intramolecular shift vectors to make molecules whole */ mk_mshift(fplog,graph,fr->ePBC,box,x); /* Reset long range forces if necessary */ if (fr->bTwinRange) { clear_rvecs(fr->f_twin_n,fr->f_twin); clear_rvecs(SHIFTS,fr->fshift_twin); } /* Do the actual neighbour searching and if twin range electrostatics * also do the calculation of long range forces and energies. */ dvdl = 0; ns(fplog,fr,x,f,box,groups,&(inputrec->opts),top,mdatoms, cr,nrnb,step,lambda,&dvdl,&enerd->grpp,bFillGrid,bDoForces); if (bSepDVDL) fprintf(fplog,sepdvdlformat,"LR non-bonded",0,dvdl); enerd->dvdl_lr = dvdl; enerd->term[F_DVDL] += dvdl; wallcycle_stop(wcycle,ewcNS); } if (DOMAINDECOMP(cr)) { if (!(cr->duty & DUTY_PME)) { wallcycle_start(wcycle,ewcPPDURINGPME); dd_force_flop_start(cr->dd,nrnb); } } /* Start the force cycle counter. * This counter is stopped in do_forcelow_level. * No parallel communication should occur while this counter is running, * since that will interfere with the dynamic load balancing. */ wallcycle_start(wcycle,ewcFORCE); if (bDoForces) { /* Reset PME/Ewald forces if necessary */ if (fr->bF_NoVirSum) { GMX_BARRIER(cr->mpi_comm_mygroup); if (fr->bDomDec) clear_rvecs(fr->f_novirsum_n,fr->f_novirsum); else clear_rvecs(homenr,fr->f_novirsum+start); GMX_BARRIER(cr->mpi_comm_mygroup); } /* Copy long range forces into normal buffers */ if (fr->bTwinRange) { for(i=0; i<fr->f_twin_n; i++) copy_rvec(fr->f_twin[i],f[i]); for(i=0; i<SHIFTS; i++) copy_rvec(fr->fshift_twin[i],fr->fshift[i]); } else { if (DOMAINDECOMP(cr)) clear_rvecs(cr->dd->nat_tot,f); else clear_rvecs(mdatoms->nr,f); clear_rvecs(SHIFTS,fr->fshift); } clear_rvec(fr->vir_diag_posres); GMX_BARRIER(cr->mpi_comm_mygroup); } if (inputrec->ePull == epullCONSTRAINT) clear_pull_forces(inputrec->pull); /* update QMMMrec, if necessary */ if(fr->bQMMM) update_QMMMrec(cr,fr,x,mdatoms,box,top); if ((flags & GMX_FORCE_BONDED) && top->idef.il[F_POSRES].nr > 0) { /* Position restraints always require full pbc */ set_pbc(&pbc,inputrec->ePBC,box); v = posres(top->idef.il[F_POSRES].nr,top->idef.il[F_POSRES].iatoms, top->idef.iparams_posres, (const rvec*)x,fr->f_novirsum,fr->vir_diag_posres, inputrec->ePBC==epbcNONE ? NULL : &pbc,lambda,&dvdl, fr->rc_scaling,fr->ePBC,fr->posres_com,fr->posres_comB); if (bSepDVDL) { fprintf(fplog,sepdvdlformat, interaction_function[F_POSRES].longname,v,dvdl); } enerd->term[F_POSRES] += v; enerd->term[F_DVDL] += dvdl; inc_nrnb(nrnb,eNR_POSRES,top->idef.il[F_POSRES].nr/2); } /* Compute the bonded and non-bonded forces */ do_force_lowlevel(fplog,step,fr,inputrec,&(top->idef), cr,nrnb,wcycle,mdatoms,&(inputrec->opts), x,hist,f,enerd,fcd,box,lambda,graph,&(top->excls),mu_tot_AB, flags,&cycles_force); GMX_BARRIER(cr->mpi_comm_mygroup); if (ed) { do_flood(fplog,cr,x,f,ed,box,step); } if (DOMAINDECOMP(cr)) { dd_force_flop_stop(cr->dd,nrnb); if (wcycle) dd_cycles_add(cr->dd,cycles_force,ddCyclF); } if (bDoForces) { /* Compute forces due to electric field */ calc_f_el(MASTER(cr) ? field : NULL, start,homenr,mdatoms->chargeA,x,f,inputrec->ex,inputrec->et,t); /* When using PME/Ewald we compute the long range virial there. * otherwise we do it based on long range forces from twin range * cut-off based calculation (or not at all). */ /* Communicate the forces */ if (PAR(cr)) { wallcycle_start(wcycle,ewcMOVEF); if (DOMAINDECOMP(cr)) { dd_move_f(cr->dd,f,buf,fr->fshift); /* Position restraint do not introduce inter-cg forces */ if (EEL_FULL(fr->eeltype) && cr->dd->n_intercg_excl) dd_move_f(cr->dd,fr->f_novirsum,buf,NULL); } else { move_f(fplog,cr,GMX_LEFT,GMX_RIGHT,f,buf,nrnb); } wallcycle_stop(wcycle,ewcMOVEF); } } if (bDoForces) { if (vsite) { wallcycle_start(wcycle,ewcVSITESPREAD); spread_vsite_f(fplog,vsite,x,f,fr->fshift,nrnb, &top->idef,fr->ePBC,fr->bMolPBC,graph,box,cr); wallcycle_stop(wcycle,ewcVSITESPREAD); } /* Calculation of the virial must be done after vsites! */ calc_virial(fplog,mdatoms->start,mdatoms->homenr,x,f, vir_force,graph,box,nrnb,fr,inputrec->ePBC); } if (inputrec->ePull == epullUMBRELLA || inputrec->ePull == epullCONST_F) { /* Calculate the center of mass forces, this requires communication, * which is why pull_potential is called close to other communication. * The virial contribution is calculated directly, * which is why we call pull_potential after calc_virial. */ set_pbc(&pbc,inputrec->ePBC,box); dvdl = 0; enerd->term[F_COM_PULL] = pull_potential(inputrec->ePull,inputrec->pull,mdatoms,&pbc, cr,t,lambda,x,f,vir_force,&dvdl); if (bSepDVDL) fprintf(fplog,sepdvdlformat,"Com pull",enerd->term[F_COM_PULL],dvdl); enerd->term[F_DVDL] += dvdl; } if (!(cr->duty & DUTY_PME)) { cycles_ppdpme = wallcycle_stop(wcycle,ewcPPDURINGPME); dd_cycles_add(cr->dd,cycles_ppdpme,ddCyclPPduringPME); } #ifdef GMX_MPI if (PAR(cr) && !(cr->duty & DUTY_PME)) { /* In case of node-splitting, the PP nodes receive the long-range * forces, virial and energy from the PME nodes here. */ wallcycle_start(wcycle,ewcPP_PMEWAITRECVF); dvdl = 0; gmx_pme_receive_f(cr,fr->f_novirsum,fr->vir_el_recip,&e,&dvdl, &cycles_pme); if (bSepDVDL) fprintf(fplog,sepdvdlformat,"PME mesh",e,dvdl); enerd->term[F_COUL_RECIP] += e; enerd->term[F_DVDL] += dvdl; if (wcycle) dd_cycles_add(cr->dd,cycles_pme,ddCyclPME); wallcycle_stop(wcycle,ewcPP_PMEWAITRECVF); } #endif if (bDoForces && fr->bF_NoVirSum) { if (vsite) { /* Spread the mesh force on virtual sites to the other particles... * This is parallellized. MPI communication is performed * if the constructing atoms aren't local. */ wallcycle_start(wcycle,ewcVSITESPREAD); spread_vsite_f(fplog,vsite,x,fr->f_novirsum,NULL,nrnb, &top->idef,fr->ePBC,fr->bMolPBC,graph,box,cr); wallcycle_stop(wcycle,ewcVSITESPREAD); } /* Now add the forces, this is local */ if (fr->bDomDec) { sum_forces(0,fr->f_novirsum_n,f,fr->f_novirsum); } else { sum_forces(start,start+homenr,f,fr->f_novirsum); } if (EEL_FULL(fr->eeltype)) { /* Add the mesh contribution to the virial */ m_add(vir_force,fr->vir_el_recip,vir_force); } if (debug) pr_rvecs(debug,0,"vir_force",vir_force,DIM); } /* Sum the potential energy terms from group contributions */ sum_epot(&(inputrec->opts),enerd); if (fr->print_force >= 0 && bDoForces) print_large_forces(stderr,mdatoms,cr,step,fr->print_force,x,f); }
int main(int argc, char *argv[]) { int i, j; /* Loop control variables */ int bands; /* Number of image bands */ double *mu; /* Mean vector for image bands */ double **covar; /* Covariance Matrix */ double *eigval; double **eigmat; int *inp_fd; int scale, scale_max, scale_min; struct GModule *module; struct Option *opt_in, *opt_out, *opt_scale; /* initialize GIS engine */ G_gisinit(argv[0]); module = G_define_module(); G_add_keyword(_("imagery")); G_add_keyword(_("image transformation")); G_add_keyword(_("PCA")); module->description = _("Principal components analysis (PCA) " "for image processing."); /* Define options */ opt_in = G_define_standard_option(G_OPT_R_INPUTS); opt_in->description = _("Name of two or more input raster maps"); opt_out = G_define_option(); opt_out->label = _("Base name for output raster maps"); opt_out->description = _("A numerical suffix will be added for each component map"); opt_out->key = "output_prefix"; opt_out->type = TYPE_STRING; opt_out->key_desc = "string"; opt_out->required = YES; opt_scale = G_define_option(); opt_scale->key = "rescale"; opt_scale->type = TYPE_INTEGER; opt_scale->key_desc = "min,max"; opt_scale->required = NO; opt_scale->answer = "0,255"; opt_scale->label = _("Rescaling range for output maps"); opt_scale->description = _("For no rescaling use 0,0"); opt_scale->guisection = _("Rescale"); if (G_parser(argc, argv)) exit(EXIT_FAILURE); /* determine number of bands passed in */ for (bands = 0; opt_in->answers[bands] != NULL; bands++) ; if (bands < 2) G_fatal_error(_("Sorry, at least 2 input bands must be provided")); /* default values */ scale = 1; scale_min = 0; scale_max = 255; /* get scale parameters */ set_output_scale(opt_scale, &scale, &scale_min, &scale_max); /* allocate memory */ covar = G_alloc_matrix(bands, bands); mu = G_alloc_vector(bands); inp_fd = G_alloc_ivector(bands); eigmat = G_alloc_matrix(bands, bands); eigval = G_alloc_vector(bands); /* open and check input/output files */ for (i = 0; i < bands; i++) { char tmpbuf[128]; sprintf(tmpbuf, "%s.%d", opt_out->answer, i + 1); G_check_input_output_name(opt_in->answers[i], tmpbuf, GR_FATAL_EXIT); inp_fd[i] = Rast_open_old(opt_in->answers[i], ""); } G_verbose_message(_("Calculating covariance matrix...")); calc_mu(inp_fd, mu, bands); calc_covariance(inp_fd, covar, mu, bands); for (i = 0; i < bands; i++) { for (j = 0; j < bands; j++) { covar[i][j] = covar[i][j] / ((double)((Rast_window_rows() * Rast_window_cols()) - 1)); G_debug(3, "covar[%d][%d] = %f", i, j, covar[i][j]); } } G_math_d_copy(covar[0], eigmat[0], bands*bands); G_debug(1, "Calculating eigenvalues and eigenvectors..."); G_math_eigen(eigmat, eigval, bands); #ifdef PCA_DEBUG /* dump eigen matrix and eigen values */ dump_eigen(bands, eigmat, eigval); #endif G_debug(1, "Ordering eigenvalues in descending order..."); G_math_egvorder(eigval, eigmat, bands); G_debug(1, "Transposing eigen matrix..."); G_math_d_A_T(eigmat, bands); /* write output images */ write_pca(eigmat, inp_fd, opt_out->answer, bands, scale, scale_min, scale_max); /* write colors and history to output */ for (i = 0; i < bands; i++) { char outname[80]; sprintf(outname, "%s.%d", opt_out->answer, i + 1); /* write colors and history to file */ write_support(bands, outname, eigmat, eigval); /* close output file */ Rast_unopen(inp_fd[i]); } /* free memory */ G_free_matrix(covar); G_free_vector(mu); G_free_ivector(inp_fd); G_free_matrix(eigmat); G_free_vector(eigval); exit(EXIT_SUCCESS); }
/* * n_vars is the number of variables to be considered, * d is the data array of variables d[0],...,d[n_vars-1], * pred determines which estimate is required: BLUE, BLUP, or BLP */ void gls(DATA **d /* pointer to DATA array */, int n_vars, /* length of DATA array (to consider) */ enum GLS_WHAT pred, /* what type of prediction is requested */ DPOINT *where, /* prediction location */ double *est /* output: array that holds the predicted values and variances */) { GLM *glm = NULL; /* to be copied to/from d */ static MAT *X0 = MNULL, *C0 = MNULL, *MSPE = MNULL, *CinvC0 = MNULL, *Tmp1 = MNULL, *Tmp2 = MNULL, *Tmp3 = MNULL, *R = MNULL; static VEC *blup = VNULL, *tmpa = VNULL, *tmpb = VNULL; PERM *piv = PNULL; volatile unsigned int i, rows_C; unsigned int j, k, l = 0, row, col, start_i, start_j, start_X, global, one_nbh_empty; VARIOGRAM *v = NULL; static enum GLS_WHAT last_pred = GLS_INIT; /* the initial value */ double c_value, *X_ori; int info; if (d == NULL) { /* clean up */ if (X0 != MNULL) M_FREE(X0); if (C0 != MNULL) M_FREE(C0); if (MSPE != MNULL) M_FREE(MSPE); if (CinvC0 != MNULL) M_FREE(CinvC0); if (Tmp1 != MNULL) M_FREE(Tmp1); if (Tmp2 != MNULL) M_FREE(Tmp2); if (Tmp3 != MNULL) M_FREE(Tmp3); if (R != MNULL) M_FREE(R); if (blup != VNULL) V_FREE(blup); if (tmpa != VNULL) V_FREE(tmpa); if (tmpb != VNULL) V_FREE(tmpb); last_pred = GLS_INIT; return; } if (DEBUG_COV) { printlog("we're at %s X: %g Y: %g Z: %g\n", IS_BLOCK(where) ? "block" : "point", where->x, where->y, where->z); } if (pred != UPDATE) /* it right away: */ last_pred = pred; assert(last_pred != GLS_INIT); if (d[0]->glm == NULL) { /* allocate and initialize: */ glm = new_glm(); d[0]->glm = (void *) glm; } else glm = (GLM *) d[0]->glm; glm->mu0 = v_resize(glm->mu0, n_vars); MSPE = m_resize(MSPE, n_vars, n_vars); if (pred == GLS_BLP || UPDATE_BLP) { X_ori = where->X; for (i = 0; i < n_vars; i++) { /* mu(0) */ glm->mu0->ve[i] = calc_mu(d[i], where); blup = v_copy(glm->mu0, v_resize(blup, glm->mu0->dim)); where->X += d[i]->n_X; /* shift to next x0 entry */ } where->X = X_ori; /* ... and set back */ for (i = 0; i < n_vars; i++) { /* Cij(0,0): */ for (j = 0; j <= i; j++) { v = get_vgm(LTI(d[i]->id,d[j]->id)); ME(MSPE, i, j) = ME(MSPE, j, i) = COVARIANCE0(v, where, where, d[j]->pp_norm2); } } fill_est(NULL, blup, MSPE, n_vars, est); /* in case of empty neighbourhood */ } /* xxx */ /* logprint_variogram(v, 1); */ /* * selection dependent problem dimensions: */ for (i = rows_C = 0, one_nbh_empty = 0; i < n_vars; i++) { rows_C += d[i]->n_sel; if (d[i]->n_sel == 0) one_nbh_empty = 1; } if (rows_C == 0 /* all selection lists empty */ || one_nbh_empty == 1) { /* one selection list empty */ if (pred == GLS_BLP || UPDATE_BLP) debug_result(blup, MSPE, pred); return; } for (i = 0, global = 1; i < n_vars && global; i++) global = (d[i]->sel == d[i]->list && d[i]->n_list == d[i]->n_original && d[i]->n_list == d[i]->n_sel); /* * global things: enter whenever (a) first time, (b) local selections or * (c) the size of the problem grew since the last call (e.g. simulation) */ if (glm->C == NULL || !global || rows_C > glm->C->m) { /* * fill y: */ glm->y = get_y(d, glm->y, n_vars); if (pred != UPDATE) { glm->C = m_resize(glm->C, rows_C, rows_C); if (gl_choleski == 0) /* use LDL' decomposition, allocate piv: */ piv = px_resize(piv, rows_C); m_zero(glm->C); glm->X = get_X(d, glm->X, n_vars); M_DEBUG(glm->X, "X"); glm->CinvX = m_resize(glm->CinvX, rows_C, glm->X->n); glm->XCinvX = m_resize(glm->XCinvX, glm->X->n, glm->X->n); glm->beta = v_resize(glm->beta, glm->X->n); for (i = start_X = start_i = 0; i < n_vars; i++) { /* row var */ /* fill C, mu: */ for (j = start_j = 0; j <= i; j++) { /* col var */ v = get_vgm(LTI(d[i]->id,d[j]->id)); for (k = 0; k < d[i]->n_sel; k++) { /* rows */ row = start_i + k; for (l = 0, col = start_j; col <= row && l < d[j]->n_sel; l++, col++) { if (pred == GLS_BLUP) c_value = GCV(v, d[i]->sel[k], d[j]->sel[l]); else c_value = COVARIANCE(v, d[i]->sel[k], d[j]->sel[l]); /* on the diagonal, if necessary, add measurement error variance */ if (d[i]->colnvariance && i == j && k == l) c_value += d[i]->sel[k]->variance; ME(glm->C, col, row) = c_value; /* fill upper */ if (col != row) ME(glm->C, row, col) = c_value; /* fill all */ } /* for l */ } /* for k */ start_j += d[j]->n_sel; } /* for j */ start_i += d[i]->n_sel; if (d[i]->n_sel > 0) start_X += d[i]->n_X - d[i]->n_merge; } /* for i */ /* if (d[0]->colnvmu) glm->C = convert_vmuC(glm->C, d[0]); */ if (d[0]->variance_fn) { glm->mu = get_mu(glm->mu, glm->y, d, n_vars); convert_C(glm->C, glm->mu, d[0]->variance_fn); } if (DEBUG_COV && pred == GLS_BLUP) printlog("[using generalized covariances: max_val - semivariance()]"); M_DEBUG(glm->C, "Covariances (x_i, x_j) matrix C (upper triangle)"); /* * factorize C: */ CHfactor(glm->C, piv, &info); if (info != 0) { /* singular: */ pr_warning("Covariance matrix singular at location [%g,%g,%g]: skipping...", where->x, where->y, where->z); m_free(glm->C); glm->C = MNULL; /* assure re-entrance if global */ P_FREE(piv); return; } if (piv == NULL) M_DEBUG(glm->C, "glm->C, Choleski decomposed:") else M_DEBUG(glm->C, "glm->C, LDL' decomposed:") } /* if (pred != UPDATE) */
/* * n_vars is the number of variables to be considered, * d is the data array of variables d[0],...,d[n_vars-1], * pred determines which estimate is required: BLUE, BLUP, or BLP */ void gls(DATA **d /* pointer to DATA array */, int n_vars, /* length of DATA array (to consider) */ enum GLS_WHAT pred, /* what type of prediction is requested */ DPOINT *where, /* prediction location */ double *est /* output: array that holds the predicted values and variances */) { GLM *glm = NULL; /* to be copied to/from d */ static MAT *X0 = MNULL, *C0 = MNULL, *MSPE = MNULL, *CinvC0 = MNULL, *Tmp1 = MNULL, *Tmp2 = MNULL, *Tmp3, *R = MNULL; static VEC *blup = VNULL, *tmpa = VNULL, *tmpb = VNULL; volatile unsigned int i, rows_C; unsigned int j, k, l = 0, row, col, start_i, start_j, start_X, global; VARIOGRAM *v = NULL; static enum GLS_WHAT last_pred = GLS_INIT; /* the initial value */ double c_value, *X_ori; if (d == NULL) { /* clean up */ if (X0 != MNULL) M_FREE(X0); if (C0 != MNULL) M_FREE(C0); if (MSPE != MNULL) M_FREE(MSPE); if (CinvC0 != MNULL) M_FREE(CinvC0); if (Tmp1 != MNULL) M_FREE(Tmp1); if (Tmp2 != MNULL) M_FREE(Tmp2); if (Tmp3 != MNULL) M_FREE(Tmp3); if (R != MNULL) M_FREE(R); if (blup != VNULL) V_FREE(blup); if (tmpa != VNULL) V_FREE(tmpa); if (tmpb != VNULL) V_FREE(tmpb); last_pred = GLS_INIT; return; } #ifndef HAVE_SPARSE if (gl_sparse) { pr_warning("sparse matrices not supported: compile with --with-sparse"); gl_sparse = 0; } #endif if (DEBUG_COV) { printlog("we're at %s X: %g Y: %g Z: %g\n", IS_BLOCK(where) ? "block" : "point", where->x, where->y, where->z); } if (pred != UPDATE) /* it right away: */ last_pred = pred; assert(last_pred != GLS_INIT); if (d[0]->glm == NULL) { /* allocate and initialize: */ glm = new_glm(); d[0]->glm = (void *) glm; } else glm = (GLM *) d[0]->glm; glm->mu0 = v_resize(glm->mu0, n_vars); MSPE = m_resize(MSPE, n_vars, n_vars); if (pred == GLS_BLP || UPDATE_BLP) { X_ori = where->X; for (i = 0; i < n_vars; i++) { /* mu(0) */ glm->mu0->ve[i] = calc_mu(d[i], where); blup = v_copy(glm->mu0, v_resize(blup, glm->mu0->dim)); where->X += d[i]->n_X; /* shift to next x0 entry */ } where->X = X_ori; /* ... and set back */ for (i = 0; i < n_vars; i++) { /* Cij(0,0): */ for (j = 0; j <= i; j++) { v = get_vgm(LTI(d[i]->id,d[j]->id)); MSPE->me[i][j] = MSPE->me[j][i] = COVARIANCE0(v, where, where, d[j]->pp_norm2); } } fill_est(NULL, blup, MSPE, n_vars, est); /* in case of empty neighbourhood */ } /* xxx */ /* logprint_variogram(v, 1); */ /* * selection dependent problem dimensions: */ for (i = rows_C = 0; i < n_vars; i++) rows_C += d[i]->n_sel; if (rows_C == 0) { /* empty selection list(s) */ if (pred == GLS_BLP || UPDATE_BLP) debug_result(blup, MSPE, pred); return; } for (i = 0, global = 1; i < n_vars && global; i++) global = (d[i]->sel == d[i]->list && d[i]->n_list == d[i]->n_original); /* * global things: enter whenever (a) first time, (b) local selections or * (c) the size of the problem grew since the last call (e.g. simulation) */ if ((glm->C == NULL && glm->spC == NULL) || !global || rows_C > glm->C->m) { /* * fill y: */ glm->y = get_y(d, glm->y, n_vars); if (pred != UPDATE) { if (! gl_sparse) { glm->C = m_resize(glm->C, rows_C, rows_C); m_zero(glm->C); } #ifdef HAVE_SPARSE else { if (glm->C == NULL) { glm->spC = sp_get(rows_C, rows_C, gl_sparse); /* d->spLLT = spLLT = sp_get(rows_C, rows_C, gl_sparse); */ } else { glm->spC = sp_resize(glm->spC, rows_C, rows_C); /* d->spLLT = spLLT = sp_resize(spLLT, rows_C, rows_C); */ } sp_zero(glm->spC); } #endif glm->X = get_X(d, glm->X, n_vars); M_DEBUG(glm->X, "X"); glm->CinvX = m_resize(glm->CinvX, rows_C, glm->X->n); glm->XCinvX = m_resize(glm->XCinvX, glm->X->n, glm->X->n); glm->beta = v_resize(glm->beta, glm->X->n); for (i = start_X = start_i = 0; i < n_vars; i++) { /* row var */ /* fill C, mu: */ for (j = start_j = 0; j <= i; j++) { /* col var */ v = get_vgm(LTI(d[i]->id,d[j]->id)); for (k = 0; k < d[i]->n_sel; k++) { /* rows */ row = start_i + k; for (l = 0, col = start_j; col <= row && l < d[j]->n_sel; l++, col++) { if (pred == GLS_BLUP) c_value = GCV(v, d[i]->sel[k], d[j]->sel[l]); else c_value = COVARIANCE(v, d[i]->sel[k], d[j]->sel[l]); /* on the diagonal, if necessary, add measurement error variance */ if (d[i]->colnvariance && i == j && k == l) c_value += d[i]->sel[k]->variance; if (! gl_sparse) glm->C->me[row][col] = c_value; #ifdef HAVE_SPARSE else { if (c_value != 0.0) sp_set_val(glm->spC, row, col, c_value); } #endif } /* for l */ } /* for k */ start_j += d[j]->n_sel; } /* for j */ start_i += d[i]->n_sel; if (d[i]->n_sel > 0) start_X += d[i]->n_X - d[i]->n_merge; } /* for i */ /* if (d[0]->colnvmu) glm->C = convert_vmuC(glm->C, d[0]); */ if (d[0]->variance_fn) { glm->mu = get_mu(glm->mu, glm->y, d, n_vars); convert_C(glm->C, glm->mu, d[0]->variance_fn); } if (DEBUG_COV && pred == GLS_BLUP) printlog("[using generalized covariances: max_val - semivariance()]"); if (! gl_sparse) { M_DEBUG(glm->C, "Covariances (x_i, x_j) matrix C (lower triangle only)"); } #ifdef HAVE_SPARSE else { SM_DEBUG(glm->spC, "Covariances (x_i, x_j) sparse matrix C (lower triangle only)") } #endif /* check for singular C: */ if (! gl_sparse && gl_cn_max > 0.0) { for (i = 0; i < rows_C; i++) /* row */ for (j = i+1; j < rows_C; j++) /* col > row */ glm->C->me[i][j] = glm->C->me[j][i]; /* fill symmetric */ if (is_singular(glm->C, gl_cn_max)) { pr_warning("Covariance matrix (nearly) singular at location [%g,%g,%g]: skipping...", where->x, where->y, where->z); m_free(glm->C); glm->C = MNULL; /* assure re-entrance if global */ return; } } /* * factorize C: */ if (! gl_sparse) LDLfactor(glm->C); #ifdef HAVE_SPARSE else { sp_compact(glm->spC, 0.0); spCHfactor(glm->spC); } #endif } /* if (pred != UPDATE) */ if (pred != GLS_BLP && !UPDATE_BLP) { /* C-1 X and X'C-1 X, beta */ /* * calculate CinvX: */ tmpa = v_resize(tmpa, rows_C); for (i = 0; i < glm->X->n; i++) { tmpa = get_col(glm->X, i, tmpa); if (! gl_sparse) tmpb = LDLsolve(glm->C, tmpa, tmpb); #ifdef HAVE_SPARSE else tmpb = spCHsolve(glm->spC, tmpa, tmpb); #endif set_col(glm->CinvX, i, tmpb); } /* * calculate X'C-1 X: */ glm->XCinvX = mtrm_mlt(glm->X, glm->CinvX, glm->XCinvX); /* X'C-1 X */ M_DEBUG(glm->XCinvX, "X'C-1 X"); if (gl_cn_max > 0.0 && is_singular(glm->XCinvX, gl_cn_max)) { pr_warning("X'C-1 X matrix (nearly) singular at location [%g,%g,%g]: skipping...", where->x, where->y, where->z); m_free(glm->C); glm->C = MNULL; /* assure re-entrance if global */ return; } m_inverse(glm->XCinvX, glm->XCinvX); /* * calculate beta: */ tmpa = vm_mlt(glm->CinvX, glm->y, tmpa); /* X'C-1 y */ glm->beta = vm_mlt(glm->XCinvX, tmpa, glm->beta); /* (X'C-1 X)-1 X'C-1 y */ V_DEBUG(glm->beta, "beta"); M_DEBUG(glm->XCinvX, "Cov(beta), (X'C-1 X)-1"); M_DEBUG(R = get_corr_mat(glm->XCinvX, R), "Corr(beta)"); } /* if pred != GLS_BLP */ } /* if redo the heavy part */