resulting mapping file can be used by the
gout
program (see Section 6.3.12)
to produce pictures showing the different separators and blocks.
Fortran users must use the
PXFFILENO
or
FNUM
functions to obtain the num-
ber of the Unix file descriptor
fildes
associated with the logical unit of the
mapping file.
Return values
SCOTCH graphOrderSaveMap
returns 0 if the ordering structure has been suc-
cessfully written to
stream
, and 1 else.
7.7.7
SCOTCH graphOrderSaveTree
Synopsis
int SCOTCH graphOrderSaveTree (const SCOTCH Graph *
grafptr,
const SCOTCH Ordering *
ordeptr,
FILE *
stream)
scotchfgraphordersavetree (doubleprecision (*)
grafdat,
doubleprecision (*)
ordedat,
integer
fildes,
integer
ierr)
Description
The
SCOTCH graphOrderSaveTree
routine saves the tree hierarchy informa-
tion associated with the
SCOTCH Ordering
structure pointed to by
ordeptr
to stream
stream
.
The format of the tree output file resembles the one of a mapping or ordering
file: it is made up of as many lines as there are vertices in the ordering. Each
of these lines holds two integer numbers. The first one is the index or the
label of the vertex, and the second one is the index of its parent node in the
separators tree, or
−
1 if the vertex belongs to a root node.
Fortran users must use the
PXFFILENO
or
FNUM
functions to obtain the number
of the Unix file descriptor
fildes
associated with the logical unit of the tree
mapping file.
Return values
SCOTCH graphOrderSaveTree
returns 0 if the separators tree structure has
been successfully written to
stream
, and 1 else.
7.7.8
SCOTCH graphOrderCheck
Synopsis
int SCOTCH graphOrderCheck (const SCOTCH Graph *
grafptr,
const SCOTCH Ordering *
ordeptr)
scotchfgraphordercheck (doubleprecision (*)
grafdat,
doubleprecision (*)
ordedat,
integer
ierr)
93
