debian man page for mord

mord(1) 						       Scotch user's manual							   mord(1)

NAME
       mord - compute sparse matrix orderings of meshes

SYNOPSIS
       mord [options] [mfile] [ofile] [lfile]

DESCRIPTION
       The  mord  program  computes,  in  a  sequential way, an ordering of a Scotch source mesh representing the pattern of some symmetric sparse
       matrix. Only nodes of the mesh are effectively ordered. Elements provide connectivity information, such that every node is considered to be
       linked to all of the nodes which share at least an element with it.

       Source  mesh  file  mfile can only be a centralized mesh file. The resulting ordering is stored in file ofile. Eventual logging information
       (such as the one produced by option -v) is sent to file lfile. When file names are not specified, data is  read	from  standard	input  and
       written to standard output. Standard streams can also be explicitely represented by a dash '-'.

       When  the  proper  libraries  have  been  included at compile time, gord can directly handle compressed meshes, 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.msh.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
       -copt  Choose default ordering strategy according to one or several options among:

	      b      enforce load balance as much as possible.

	      q      privilege quality over speed (default).

	      s      privilege speed over quality.

	      t      enforce safety.

       -h     Display some help.

       -mmfile
	      Save column block mapping data to file mfile. Mapping data specifies, for each node vertex, the index of the column block  to  which
	      this node vertex belongs.

       -ostrat
	      Use sequential mesh ordering strategy strat (see Scotch user's manual for more information).

       -ttfile
	      Save  partitioning tree data to file tfile. Partitioning tree data specifies, for each node vertex, the index of the first node ver-
	      tex of the parent block of the block to which the node vertex belongs. Altogether with the mapping data provided in file	mfile,	it
	      allows one to rebuild the separator tree of the nested dissection process.

       -V     Display program version and copyright.

       -vverb Set verbose mode to verb. It is a set of one of more characters which can be:

	      s      strategy information.

	      t      timing information.

EXAMPLE
       Reorder matrix mesh brol.msh and save the resulting ordering to file brol.ord using the default sequential mesh ordering strategy:

	   $ mord brol.msh brol.ord

SEE ALSO
       gmk_msh(1), gotst(1), mtst(1).

       Scotch user's manual.

AUTHOR
       Francois Pellegrini <francois.pellegrini@labri.fr>

								 February 14, 2011							   mord(1)