/*-------------------------------------------------------------------------- * HYPRE_SStructMaxwellZeroVector *--------------------------------------------------------------------------*/ HYPRE_Int HYPRE_SStructMaxwellZeroVector(HYPRE_ParVector v, HYPRE_Int *rows, HYPRE_Int nrows) { return( hypre_ParVectorZeroBCValues( (hypre_ParVector *) v, rows, nrows ) ); }
HYPRE_Int hypre_MaxwellSolve2( void * maxwell_vdata, hypre_SStructMatrix * A_in, hypre_SStructVector * f, hypre_SStructVector * u ) { hypre_MaxwellData *maxwell_data = maxwell_vdata; hypre_ParVector *f_edge; hypre_ParVector *u_edge; HYPRE_Int max_iter = maxwell_data-> max_iter; double tol = maxwell_data-> tol; HYPRE_Int rel_change = maxwell_data-> rel_change; HYPRE_Int zero_guess = maxwell_data-> zero_guess; HYPRE_Int npre_relax = maxwell_data-> num_pre_relax; HYPRE_Int npost_relax = maxwell_data-> num_post_relax; hypre_ParCSRMatrix **Ann_l = maxwell_data-> Ann_l; hypre_ParCSRMatrix **Pn_l = maxwell_data-> Pn_l; hypre_ParCSRMatrix **RnT_l = maxwell_data-> RnT_l; hypre_ParVector **bn_l = maxwell_data-> bn_l; hypre_ParVector **xn_l = maxwell_data-> xn_l; hypre_ParVector **resn_l = maxwell_data-> resn_l; hypre_ParVector **en_l = maxwell_data-> en_l; hypre_ParVector **nVtemp2_l = maxwell_data-> nVtemp2_l; HYPRE_Int **nCF_marker_l = maxwell_data-> nCF_marker_l; double *nrelax_weight= maxwell_data-> nrelax_weight; double *nomega = maxwell_data-> nomega; HYPRE_Int nrelax_type = maxwell_data-> nrelax_type; HYPRE_Int node_numlevs = maxwell_data-> node_numlevels; hypre_ParCSRMatrix *Tgrad = maxwell_data-> Tgrad; hypre_ParCSRMatrix *T_transpose = maxwell_data-> T_transpose; hypre_ParCSRMatrix **Aee_l = maxwell_data-> Aee_l; hypre_IJMatrix **Pe_l = maxwell_data-> Pe_l; hypre_IJMatrix **ReT_l = maxwell_data-> ReT_l; hypre_ParVector **be_l = maxwell_data-> be_l; hypre_ParVector **xe_l = maxwell_data-> xe_l; hypre_ParVector **rese_l = maxwell_data-> rese_l; hypre_ParVector **ee_l = maxwell_data-> ee_l; hypre_ParVector **eVtemp2_l = maxwell_data-> eVtemp2_l; HYPRE_Int **eCF_marker_l = maxwell_data-> eCF_marker_l; double *erelax_weight= maxwell_data-> erelax_weight; double *eomega = maxwell_data-> eomega; HYPRE_Int erelax_type = maxwell_data-> erelax_type; HYPRE_Int edge_numlevs = maxwell_data-> edge_numlevels; HYPRE_Int **BdryRanks_l = maxwell_data-> BdryRanks_l; HYPRE_Int *BdryRanksCnts_l= maxwell_data-> BdryRanksCnts_l; HYPRE_Int logging = maxwell_data-> logging; double *norms = maxwell_data-> norms; double *rel_norms = maxwell_data-> rel_norms; HYPRE_Int Solve_err_flag; HYPRE_Int relax_local, cycle_param; double b_dot_b = 0, r_dot_r, eps = 0; double e_dot_e, x_dot_x; HYPRE_Int i, j; HYPRE_Int level; HYPRE_Int ierr= 0; /* added for the relaxation routines */ hypre_ParVector *ze = NULL; if (hypre_NumThreads() > 1) { /* Aee is always bigger than Ann */ ze = hypre_ParVectorCreate(hypre_ParCSRMatrixComm(Aee_l[0]), hypre_ParCSRMatrixGlobalNumRows(Aee_l[0]), hypre_ParCSRMatrixRowStarts(Aee_l[0])); hypre_ParVectorInitialize(ze); hypre_ParVectorSetPartitioningOwner(ze,0); } hypre_BeginTiming(maxwell_data-> time_index); hypre_SStructVectorConvert(f, &f_edge); hypre_SStructVectorConvert(u, &u_edge); hypre_ParVectorZeroBCValues(f_edge, BdryRanks_l[0], BdryRanksCnts_l[0]); hypre_ParVectorZeroBCValues(u_edge, BdryRanks_l[0], BdryRanksCnts_l[0]); be_l[0]= f_edge; xe_l[0]= u_edge; /* the nodal fine vectors: xn= 0. bn= T'*(be- Aee*xe) is updated in the cycle. */ hypre_ParVectorSetConstantValues(xn_l[0], 0.0); relax_local= 0; cycle_param= 0; (maxwell_data-> num_iterations) = 0; /* if max_iter is zero, return */ if (max_iter == 0) { /* if using a zero initial guess, return zero */ if (zero_guess) { hypre_ParVectorSetConstantValues(xe_l[0], 0.0); } hypre_EndTiming(maxwell_data -> time_index); return ierr; } /* part of convergence check */ if (tol > 0.0) { /* eps = (tol^2) */ b_dot_b= hypre_ParVectorInnerProd(be_l[0], be_l[0]); eps = tol*tol; /* if rhs is zero, return a zero solution */ if (b_dot_b == 0.0) { hypre_ParVectorSetConstantValues(xe_l[0], 0.0); if (logging > 0) { norms[0] = 0.0; rel_norms[0] = 0.0; } hypre_EndTiming(maxwell_data -> time_index); return ierr; } } /*----------------------------------------------------- * Do V-cycles: * For each index l, "fine" = l, "coarse" = (l-1) * * solution update: * edge_sol= edge_sol + T*node_sol *-----------------------------------------------------*/ for (i = 0; i < max_iter; i++) { /* compute fine grid residual & nodal rhs. */ hypre_ParVectorCopy(be_l[0], rese_l[0]); hypre_ParCSRMatrixMatvec(-1.0, Aee_l[0], xe_l[0], 1.0, rese_l[0]); hypre_ParVectorZeroBCValues(rese_l[0], BdryRanks_l[0], BdryRanksCnts_l[0]); hypre_ParCSRMatrixMatvec(1.0, T_transpose, rese_l[0], 0.0, bn_l[0]); /* convergence check */ if (tol > 0.0) { r_dot_r= hypre_ParVectorInnerProd(rese_l[0], rese_l[0]); if (logging > 0) { norms[i] = sqrt(r_dot_r); if (b_dot_b > 0) rel_norms[i] = sqrt(r_dot_r/b_dot_b); else rel_norms[i] = 0.0; } /* always do at least 1 V-cycle */ if ((r_dot_r/b_dot_b < eps) && (i > 0)) { if (rel_change) { if ((e_dot_e/x_dot_x) < eps) break; } else { break; } } } hypre_ParVectorCopy(bn_l[0], resn_l[0]); hypre_ParCSRMatrixMatvec(-1.0, Ann_l[0], xn_l[0], 1.0, resn_l[0]); r_dot_r= hypre_ParVectorInnerProd(resn_l[0], resn_l[0]); for (level= 0; level<= node_numlevs-2; level++) { /*----------------------------------------------- * Down cycle *-----------------------------------------------*/ for (j= 0; j< npre_relax; j++) { Solve_err_flag = hypre_BoomerAMGRelaxIF(Ann_l[level], bn_l[level], nCF_marker_l[level], nrelax_type, relax_local, cycle_param, nrelax_weight[level], nomega[level], NULL, xn_l[level], nVtemp2_l[level], ze); } /*for (j= 0; j< npre_relax; j++) */ /* compute residuals */ hypre_ParVectorCopy(bn_l[level], resn_l[level]); hypre_ParCSRMatrixMatvec(-1.0, Ann_l[level], xn_l[level], 1.0, resn_l[level]); /* restrict residuals */ hypre_ParCSRMatrixMatvecT(1.0, RnT_l[level], resn_l[level], 0.0, bn_l[level+1]); /* zero off initial guess for the next level */ hypre_ParVectorSetConstantValues(xn_l[level+1], 0.0); } /* for (level= 0; level<= node_numlevs-2; level++) */ /* coarsest node solve */ level= node_numlevs-1; Solve_err_flag = hypre_BoomerAMGRelaxIF(Ann_l[level], bn_l[level], nCF_marker_l[level], nrelax_type, relax_local, cycle_param, nrelax_weight[level], nomega[level], NULL, xn_l[level], nVtemp2_l[level], ze); /*--------------------------------------------------------------------- * Cycle up the levels. *---------------------------------------------------------------------*/ for (level= (node_numlevs - 2); level>= 1; level--) { hypre_ParCSRMatrixMatvec(1.0, Pn_l[level], xn_l[level+1], 0.0, en_l[level]); hypre_ParVectorAxpy(1.0, en_l[level], xn_l[level]); /* post smooth */ for (j= 0; j< npost_relax; j++) { Solve_err_flag = hypre_BoomerAMGRelaxIF(Ann_l[level], bn_l[level], nCF_marker_l[level], nrelax_type, relax_local, cycle_param, nrelax_weight[level], nomega[level], NULL, xn_l[level], nVtemp2_l[level], ze); } } /* for (level= (en_numlevs - 2); level>= 1; level--) */ /* interpolate error and correct on finest grids */ hypre_ParCSRMatrixMatvec(1.0, Pn_l[0], xn_l[1], 0.0, en_l[0]); hypre_ParVectorAxpy(1.0, en_l[0], xn_l[0]); for (j= 0; j< npost_relax; j++) { Solve_err_flag = hypre_BoomerAMGRelaxIF(Ann_l[0], bn_l[0], nCF_marker_l[0], nrelax_type, relax_local, cycle_param, nrelax_weight[0], nomega[0], NULL, xn_l[0], nVtemp2_l[0], ze); } /* for (j= 0; j< npost_relax; j++) */ hypre_ParVectorCopy(bn_l[0], resn_l[0]); hypre_ParCSRMatrixMatvec(-1.0, Ann_l[0], xn_l[0], 1.0, resn_l[0]); /* add the gradient solution component to xe_l[0] */ hypre_ParCSRMatrixMatvec(1.0, Tgrad, xn_l[0], 1.0, xe_l[0]); hypre_ParVectorCopy(be_l[0], rese_l[0]); hypre_ParCSRMatrixMatvec(-1.0, Aee_l[0], xe_l[0], 1.0, rese_l[0]); r_dot_r= hypre_ParVectorInnerProd(rese_l[0], rese_l[0]); for (level= 0; level<= edge_numlevs-2; level++) { /*----------------------------------------------- * Down cycle *-----------------------------------------------*/ for (j= 0; j< npre_relax; j++) { Solve_err_flag = hypre_BoomerAMGRelaxIF(Aee_l[level], be_l[level], eCF_marker_l[level], erelax_type, relax_local, cycle_param, erelax_weight[level], eomega[level], NULL, xe_l[level], eVtemp2_l[level], ze); } /*for (j= 0; j< npre_relax; j++) */ /* compute residuals */ hypre_ParVectorCopy(be_l[level], rese_l[level]); hypre_ParCSRMatrixMatvec(-1.0, Aee_l[level], xe_l[level], 1.0, rese_l[level]); /* restrict residuals */ hypre_ParCSRMatrixMatvecT(1.0, (hypre_ParCSRMatrix *) hypre_IJMatrixObject(ReT_l[level]), rese_l[level], 0.0, be_l[level+1]); hypre_ParVectorZeroBCValues(be_l[level+1], BdryRanks_l[level+1], BdryRanksCnts_l[level+1]); /* zero off initial guess for the next level */ hypre_ParVectorSetConstantValues(xe_l[level+1], 0.0); } /* for (level= 1; level<= edge_numlevels-2; level++) */ /* coarsest edge solve */ level= edge_numlevs-1; for (j= 0; j< npre_relax; j++) { Solve_err_flag = hypre_BoomerAMGRelaxIF(Aee_l[level], be_l[level], eCF_marker_l[level], erelax_type, relax_local, cycle_param, erelax_weight[level], eomega[level], NULL, xe_l[level], eVtemp2_l[level], ze); } /*--------------------------------------------------------------------- * Up cycle. *---------------------------------------------------------------------*/ for (level= (edge_numlevs - 2); level>= 1; level--) { hypre_ParCSRMatrixMatvec(1.0, (hypre_ParCSRMatrix *) hypre_IJMatrixObject(Pe_l[level]), xe_l[level+1], 0.0, ee_l[level]); hypre_ParVectorZeroBCValues(ee_l[level], BdryRanks_l[level], BdryRanksCnts_l[level]); hypre_ParVectorAxpy(1.0, ee_l[level], xe_l[level]); /* post smooth */ for (j= 0; j< npost_relax; j++) { Solve_err_flag = hypre_BoomerAMGRelaxIF(Aee_l[level], be_l[level], eCF_marker_l[level], erelax_type, relax_local, cycle_param, erelax_weight[level], eomega[level], NULL, xe_l[level], eVtemp2_l[level], ze); } } /* for (level= (edge_numlevs - 2); level>= 1; level--) */ /* interpolate error and correct on finest grids */ hypre_ParCSRMatrixMatvec(1.0, (hypre_ParCSRMatrix *) hypre_IJMatrixObject(Pe_l[0]), xe_l[1], 0.0, ee_l[0]); hypre_ParVectorZeroBCValues(ee_l[0], BdryRanks_l[0], BdryRanksCnts_l[0]); hypre_ParVectorAxpy(1.0, ee_l[0], xe_l[0]); for (j= 0; j< npost_relax; j++) { Solve_err_flag = hypre_BoomerAMGRelaxIF(Aee_l[0], be_l[0], eCF_marker_l[0], erelax_type, relax_local, cycle_param, erelax_weight[0], eomega[0], NULL, xe_l[0], eVtemp2_l[0], ze); } /* for (j= 0; j< npost_relax; j++) */ e_dot_e= hypre_ParVectorInnerProd(ee_l[0], ee_l[0]); x_dot_x= hypre_ParVectorInnerProd(xe_l[0], xe_l[0]); hypre_ParVectorCopy(be_l[0], rese_l[0]); hypre_ParCSRMatrixMatvec(-1.0, Aee_l[0], xe_l[0], 1.0, rese_l[0]); (maxwell_data -> num_iterations) = (i + 1); } hypre_EndTiming(maxwell_data -> time_index); if (ze) hypre_ParVectorDestroy(ze); return ierr; }