(3M) Calculator User Manual

7.6.7 SCOTCH graphMapCompute
Synopsis
int SCOTCH graphMapCompute (const SCOTCH Graph * grafptr,
SCOTCH
Mapping * mappptr,
const SCOTCH Strat * straptr)
scotchfgraphmapcompute (doubleprecision (*) grafdat,
doubleprecision (*) mappdat,
doubleprecision (*) stradat,
integer ierr)
Description
The SCOTCH
graphMapCompute routine computes a mapping on the given
SCOTCH Mapping structure pointed to by mappptr using the mapping strategy
pointed to by stratptr.
On return, every cell of the mapping array (see section 7.6 .3) holds the number
of the target vertex to which the co rresponding source vertex is mapped. The
numbering of target values is not based: target vertices are numbere d from 0
to the number of target vertices, minus 1.
Return val ues
SCOTCH graphMapCompute returns 0 if the mapping has been successfully com-
puted, and 1 else. In this latter case, the mapping array may however have
been partially or completely filled, but its content is not significant.
7.6.8 SCOTCH
graphMapView
Synopsis
int SCOTCH graphMapView (const SCOTCH Graph * grafptr,
const SCOTCH Mapping * mappptr,
FILE * stream)
scotchfgraphmapview (doubleprecision (*) grafdat,
doubleprecision (*) mappdat,
integer fildes,
integer ierr)
Description
The SCOTCH
mapView routine summarizes statistical infor mation on the map-
ping pointed to by mappptr (load of target processors, number of neighboring
domains, average dilation and expansion, edge cut size, distribution of edge
dilations), and prints these results to stream stream.
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 output
data file.
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