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').

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>

                                                23 November 2019                                        gbase(1)