05006d2259
- Added generic semicoarsening interpolation/restriction routines, and changed PFMG/SMG to use (no more IntAdd in SMG). - Modified SMG solve code to always do one V-cycle. PFMG/SMG solve routines now look nearly identical. - SparseMSG is broken in this revision.
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*BHEADER**********************************************************************
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* (c) 1997 The Regents of the University of California
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*
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* See the file COPYRIGHT_and_DISCLAIMER for a complete copyright
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* notice, contact person, and disclaimer.
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*
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* $Revision$
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*********************************************************************EHEADER*/
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/******************************************************************************
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*
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* Header info for the SMG solver
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*
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*****************************************************************************/
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#ifndef hypre_SMG_HEADER
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#define hypre_SMG_HEADER
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/*--------------------------------------------------------------------------
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* hypre_SMGData:
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*--------------------------------------------------------------------------*/
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typedef struct
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{
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MPI_Comm comm;
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int memory_use;
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double tol;
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int max_iter;
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int rel_change;
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int zero_guess;
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int max_levels; /* max_level <= 0 means no limit */
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int num_levels;
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int num_pre_relax; /* number of pre relaxation sweeps */
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int num_post_relax; /* number of post relaxation sweeps */
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int cdir; /* coarsening direction */
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/* base index space info */
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hypre_Index base_index;
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hypre_Index base_stride;
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hypre_StructGrid **grid_l;
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hypre_StructGrid **PT_grid_l;
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double *data;
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hypre_StructMatrix **A_l;
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hypre_StructMatrix **PT_l;
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hypre_StructMatrix **R_l;
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hypre_StructVector **b_l;
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hypre_StructVector **x_l;
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/* temp vectors */
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hypre_StructVector **tb_l;
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hypre_StructVector **tx_l;
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hypre_StructVector **r_l;
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hypre_StructVector **e_l;
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void **relax_data_l;
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void **residual_data_l;
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void **restrict_data_l;
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void **interp_data_l;
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/* log info (always logged) */
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int num_iterations;
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int time_index;
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/* additional log info (logged when `logging' > 0) */
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int logging;
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double *norms;
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double *rel_norms;
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} hypre_SMGData;
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/*--------------------------------------------------------------------------
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* Utility routines:
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*--------------------------------------------------------------------------*/
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#define hypre_SMGSetBIndex(base_index, base_stride, level, bindex) \
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{\
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if (level > 0)\
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hypre_SetIndex(bindex, 0, 0, 0);\
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else\
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hypre_CopyIndex(base_index, bindex);\
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}
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#define hypre_SMGSetBStride(base_index, base_stride, level, bstride) \
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{\
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if (level > 0)\
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hypre_SetIndex(bstride, 1, 1, 1);\
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else\
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hypre_CopyIndex(base_stride, bstride);\
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}
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#define hypre_SMGSetCIndex(base_index, base_stride, level, cdir, cindex) \
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{\
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hypre_SMGSetBIndex(base_index, base_stride, level, cindex);\
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hypre_IndexD(cindex, cdir) += 0;\
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}
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#define hypre_SMGSetFIndex(base_index, base_stride, level, cdir, findex) \
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{\
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hypre_SMGSetBIndex(base_index, base_stride, level, findex);\
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hypre_IndexD(findex, cdir) += 1;\
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}
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#define hypre_SMGSetStride(base_index, base_stride, level, cdir, stride) \
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{\
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hypre_SMGSetBStride(base_index, base_stride, level, stride);\
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hypre_IndexD(stride, cdir) *= 2;\
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}
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#endif
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