(3M) Calculator User Manual

Description
The SCOTCH
meshOrderSaveTree routine saves the tree hierarchy information
associated with the SCOTCH Ordering structure pointed to by ordeptr to
stream stream.
The format o f the tree output file resembles the one of a mapping or ordering
file: it is made up of as many lines as ther e are node vertices in the ordering.
Each of these lines holds two integer number s. The first one is the index or
the label of the node vertex, starting from baseval, and the second one is the
index of its parent node in the separ ators tree, or −1 if the vertex belongs to
a root node.
Fortra n 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 val ues
SCOTCH
meshOrderSaveTree returns 0 if the separators tre e structure has been
successfully written to stream, and 1 else.
7.9.7 SCOTCH
meshOrderCheck
Synopsis
int SCOTCH
meshOrderCheck (const SCOTCH Mesh * meshptr,
const SCOTCH
Ordering * ordeptr)
scotchfmeshordercheck (doubleprecision (*) meshdat,
doubleprecision (*) ordedat,
integer ierr)
Description
The SCOTCH
meshOrderCheck routine checks the c onsistency of the given
SCOTCH Ordering structure pointed to by ordeptr.
Return val ues
SCOTCH
meshOrderCheck returns 0 if ordering data are consistent, and 1 else.
7.9.8 SCOTCH
meshOrderCompute
Synopsis
int SCOTCH
meshOrderCompute (const SCOTCH Mesh * meshptr,
SCOTCH
Ordering * ordeptr,
const SCOTCH Strat * straptr)
scotchfmeshordercompute (doubleprecision (*) meshdat,
doubleprecision (*) ordedat,
doubleprecision (*) stradat,
integer ierr)
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