PETSc version 3.15.5
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