NAME

       gbase - sets the base value of a source graph

SYNOPSIS

       gbase [options] bval [igfile] [ogfile]

DESCRIPTION

       The gbase program allows one to set to bval the base value of a source graph, that is, the
       starting index used to number its vertices and edges. The base value can be set to 0 or 1,
       so  that  graphs  can  be  easily  imported  from and/or exported to tools written in C or
       Fortran. Scotch can handle graphs irrespective of their base value.

       When the proper libraries have been included at compile time, gbase  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.

EXAMPLE

       Set the base of graph 'brol.grf' to 1, and write the modified graph to file 'brol_b1.grf'.

           $ gbase 1 brol.grf brol_b1.grf

SEE ALSO

       gcv(1), gmk_hy(1), gmk_msh(1), gtst(1), gmap(1), gord(1).

       Scotch user's manual.

AUTHOR

       Francois Pellegrini <francois.pellegrini@labri.fr>

                                        February 14, 2011                                gbase(1)