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This is the command gotst-int32 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

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

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