Date: 2015-10-02T22:06:07+00:00

Actual source code: inode2.c
petsc-3.6.2 2015-10-02
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      2: #include <../src/mat/impls/aij/seq/aij.h>

      4: extern PetscErrorCode MatSeqAIJCheckInode(Mat);
      5: extern PetscErrorCode MatInodeAdjustForInodes_SeqAIJ_Inode(Mat,IS*,IS*);
      6: extern PetscErrorCode MatInodeGetInodeSizes_SeqAIJ_Inode(Mat,PetscInt*,PetscInt*[],PetscInt*);

     10: PetscErrorCode MatView_SeqAIJ_Inode(Mat A,PetscViewer viewer)
     11: {
     12:   Mat_SeqAIJ        *a=(Mat_SeqAIJ*)A->data;
     13:   PetscErrorCode    ierr;
     14:   PetscBool         iascii;
     15:   PetscViewerFormat format;

     18:   PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);
     19:   if (iascii) {
     20:     PetscViewerGetFormat(viewer,&format);
     21:     if (format == PETSC_VIEWER_ASCII_INFO_DETAIL || format == PETSC_VIEWER_ASCII_INFO) {
     22:       if (a->inode.size) {
     23:         PetscViewerASCIIPrintf(viewer,"using I-node routines: found %D nodes, limit used is %D\n",
     24:                                       a->inode.node_count,a->inode.limit);
     25:       } else {
     26:         PetscViewerASCIIPrintf(viewer,"not using I-node routines\n");
     27:       }
     28:     }
     29:   }
     30:   return(0);
     31: }

     35: PetscErrorCode MatAssemblyEnd_SeqAIJ_Inode(Mat A, MatAssemblyType mode)
     36: {
     37:   Mat_SeqAIJ     *a = (Mat_SeqAIJ*)A->data;

     41:   MatSeqAIJCheckInode(A);
     42:   a->inode.ibdiagvalid = PETSC_FALSE;
     43:   return(0);
     44: }

     48: PetscErrorCode MatDestroy_SeqAIJ_Inode(Mat A)
     49: {
     51:   Mat_SeqAIJ     *a=(Mat_SeqAIJ*)A->data;

     54:   PetscFree(a->inode.size);
     55:   PetscFree3(a->inode.ibdiag,a->inode.bdiag,a->inode.ssor_work);
     56:   PetscObjectComposeFunction((PetscObject)A,"MatInodeAdjustForInodes_C",NULL);
     57:   PetscObjectComposeFunction((PetscObject)A,"MatInodeGetInodeSizes_C",NULL);
     58:   return(0);
     59: }

     61: /* MatCreate_SeqAIJ_Inode is not DLLEXPORTed because it is not a constructor for a complete type.    */
     62: /* It is also not registered as a type for use within MatSetType.                             */
     63: /* It is intended as a helper for the MATSEQAIJ class, so classes which desire Inodes should  */
     64: /*    inherit off of MATSEQAIJ instead by calling MatSetType(MATSEQAIJ) in their constructor. */
     65: /* Maybe this is a bad idea. (?) */
     68: PetscErrorCode MatCreate_SeqAIJ_Inode(Mat B)
     69: {
     70:   Mat_SeqAIJ     *b=(Mat_SeqAIJ*)B->data;
     72:   PetscBool      no_inode,no_unroll;

     75:   no_inode             = PETSC_FALSE;
     76:   no_unroll            = PETSC_FALSE;
     77:   b->inode.node_count  = 0;
     78:   b->inode.size        = 0;
     79:   b->inode.limit       = 5;
     80:   b->inode.max_limit   = 5;
     81:   b->inode.ibdiagvalid = PETSC_FALSE;
     82:   b->inode.ibdiag      = 0;
     83:   b->inode.bdiag       = 0;

     85:   PetscOptionsBegin(PetscObjectComm((PetscObject)B),((PetscObject)B)->prefix,"Options for SEQAIJ matrix","Mat");
     86:   PetscOptionsBool("-mat_no_unroll","Do not optimize for inodes (slower)",NULL,no_unroll,&no_unroll,NULL);
     87:   if (no_unroll) {
     88:     PetscInfo(B,"Not using Inode routines due to -mat_no_unroll\n");
     89:   }
     90:   PetscOptionsBool("-mat_no_inode","Do not optimize for inodes -slower-",NULL,no_inode,&no_inode,NULL);
     91:   if (no_inode) {
     92:     PetscInfo(B,"Not using Inode routines due to -mat_no_inode\n");
     93:   }
     94:   PetscOptionsInt("-mat_inode_limit","Do not use inodes larger then this value",NULL,b->inode.limit,&b->inode.limit,NULL);
     95:   PetscOptionsEnd();

     97:   b->inode.use = (PetscBool)(!(no_unroll || no_inode));
     98:   if (b->inode.limit > b->inode.max_limit) b->inode.limit = b->inode.max_limit;

    100:   PetscObjectComposeFunction((PetscObject)B,"MatInodeAdjustForInodes_C",MatInodeAdjustForInodes_SeqAIJ_Inode);
    101:   PetscObjectComposeFunction((PetscObject)B,"MatInodeGetInodeSizes_C",MatInodeGetInodeSizes_SeqAIJ_Inode);
    102:   return(0);
    103: }

    107: PetscErrorCode MatSetOption_SeqAIJ_Inode(Mat A,MatOption op,PetscBool flg)
    108: {
    109:   Mat_SeqAIJ *a=(Mat_SeqAIJ*)A->data;

    112:   switch (op) {
    113:   case MAT_USE_INODES:
    114:     a->inode.use = flg;
    115:     break;
    116:   default:
    117:     break;
    118:   }
    119:   return(0);
    120: }