petsc-3.14.6 2021-03-30
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MatOrderingType

 String with the name of a PETSc matrix ordering

Synopsis

typedef const char* MatOrderingType;
#define MATORDERINGNATURAL        "natural"
#define MATORDERINGND             "nd"
#define MATORDERING1WD            "1wd"
#define MATORDERINGRCM            "rcm"
#define MATORDERINGQMD            "qmd"
#define MATORDERINGROWLENGTH      "rowlength"
#define MATORDERINGWBM            "wbm"
#define MATORDERINGSPECTRAL       "spectral"
#define MATORDERINGAMD            "amd"            /* only works if UMFPACK is installed with PETSc */
#define MATORDERINGNATURAL_OR_ND  "natural_or_nd"  /* special coase used for Cholesky and ICC, allows ND when AIJ matrix is used but Natural when SBAIJ is used */
#define MATORDERINGEXTERNAL       "external"       /* uses an ordering type internal to the factorization package */

Notes

If MATORDERINGEXTERNAL is used then PETSc does not compute an ordering and utilizes one built into the factorization package

See Also

MatGetOrdering()

Level

beginner

Location

src/mat/../../include/petscmat.h
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages