Provided by: scotch_6.0.4.dfsg1-8_amd64 bug


       gmk_hy, gmk_m2, gmk_m3, gmk_ub2 - create source graphs


       gmk_hy [options] dim [ofile]

       gmk_m2 [options] [-gcfile] dimX dimY [ofile]

       gmk_m3 [options] [-gcfile] dimX dimY dimZ [ofile]

       gmk_ub2 [options] dim


       The gmk_* programs create source graph files for some common, regular topologies.

       gmk_hy creates a hypercube of dimension dim.

       gmk_m2 creates a 2D regular grid of dimensions dimX and dimY.

       gmk_m3 creates a 3D regular grid of dimensions dimX, dimY and dimZ.

       gmk_ub2 creates an unoriented de Bruijn graph of dimension dim.


       -b base
              For  gmk_m2  and  gmk_m3  only.  Output graphs with base value set to base. Default
              value is 0.

       -e     For gmk_m2 only. Build a 8-neighbor grid rather than a 4-neighbor grid.

              For gmk_m2 and gmk_m3 only. Output graph vertex coordinates (that is, geometry data
              to be used by gout(1)) in file cfile.

       -h     Display some help.

       -t     For  gmk_m2  and  gmk_m3 only. Create torus graphs, that is, graphs such that there
              exist loop edges between vertices of rank 0 and (dim-1) in every dimension.

       -V     Display program version and copyright.


       Create a 5x7 grid along with its geometry:

           $ gmk_m2 5 7 -g/tmp/ /tmp/m5x7.grf


       gmk_msh(1), gtst(1), gmap(1), gord(1), gout(1), amk_grf(1).

       Scotch user's manual.


       Francois Pellegrini <>

                                         August 03, 2010                                gmk_hy(1)