gotst(1) [debian man page]
gotst(1) Scotch user's manual gotst(1) NAME
gomtst - compute statistics on sparse matrix orderings SYNOPSIS
gotst [options] [gfile] [ofile] [lfile] DESCRIPTION
The gotst program computes, in a sequential way, statistics on a sparse matrix ordering, such as fill-in, operation count, and separator tree parameters: minimum, maximum, average height and variance of its leaves. Source graph file gfile can only be a centralized graph file. File ofile represents the ordering of the symmetric sparse matrix the pattern of which is represented by gfile. The resulting statistics are stored in file lfile. When file names are not specified, data is read from standard input and written to standard output. Standard streams can also be explicitly represented by a dash '-'. When the proper libraries have been included at compile time, gtst can directly handle compressed graphs, both as input and output. A stream is treated as compressed whenever its name is postfixed with a compressed file extension, such as in 'brol.grf.bz2' or '-.gz'. The compression formats which can be supported are the bzip2 format ('.bz2'), the gzip format ('.gz'), and the lzma format ('.lzma', on input only). Since gotst performs sequentially the symbolic factorization of matrix gfile in order to compute fill-in and operation count numbers, this program can take a long time or even run out of memory, when applied to very large graphs. OPTIONS
-h Display some help. -V Display program version and copyright. EXAMPLE
Display statistics on ordering brol.ord of graph brol.grf: $ gotst brol.grf brol.ord SEE ALSO
gord(1), gtst(1), dgord(1). Scotch user's manual. AUTHOR
Francois Pellegrini <francois.pellegrini@labri.fr> February 14, 2011 gotst(1)
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gmtst(1) Scotch user's manual gmtst(1) NAME
gmtst - compute statistics on mappings SYNOPSIS
gmtst [options] [gfile] [tfile] [mfile] [lfile] DESCRIPTION
The gmtst program computes, in a sequential way, statistics on a static mapping, such as load imbalance ratio, edge dilation distribution, etc. It yields the same results as the ones produced by the -vm option of the gmap(1) program. Source graph file gfile can only be a centralized graph file. File tfile represents the target architecture onto which gfile was mapped. If mapping file mfile was produced by gpart(1), the target architecture file to provide gmtst should describe a complete graph with the same number of vertices as the requested number of parts, for instance by means of the 'cmplt num' algorithmically-described architecture. The resulting statistics are stored in file lfile. When file names are not specified, data is read from standard input and written to standard output. Standard streams can also be explicitly represented by a dash '-'. When the proper libraries have been included at compile time, gtst can directly handle compressed graphs, both as input and output. A stream is treated as compressed whenever its name is postfixed with a compressed file extension, such as in 'brol.grf.bz2' or '-.gz'. The compression formats which can be supported are the bzip2 format ('.bz2'), the gzip format ('.gz'), and the lzma format ('.lzma', on input only). OPTIONS
-h Display some help. -V Display program version and copyright. EXAMPLES
Display statistics on mapping brol.map of graph brol.grf onto target architecture brol.tgt: $ gmtst brol.grf brol.tgt brol.map Display statistics on partitioning brol.map of graph brol.grf into num parts. Note the use of the complete graph algorithmically-described architecture and of the shell pipe command to provide the complete target architecture description on the standard input of the gmtst com- mand: $ echo "cmplt num" | gmtst brol.grf - brol.map SEE ALSO
gmap(1), gout(1), gtst(1). Scotch user's manual. AUTHOR
Francois Pellegrini <francois.pellegrini@labri.fr> February 14, 2011 gmtst(1)