Usage

Currently, mpmetis wraps the function METIS_PartMeshNodal from the METIS-library. To call the function run:

import mpmetis
mpmetis.part_mesh_nodal(ne, nn, eptr, eind, vwgt, vsize, nparts, tpwgts,
                    options, objval, epart, npart)

The meaning of the arguments can be found in the mpmetis.part_mesh_nodal() reference.

A example is given here:

import numpy as np
from mpmetis import part_mesh_nodal, create_default_options, MetisOption, MetisStatus
options = create_default_options()
options[MetisOption.DBGLVL] = 1
connectivity_data = np.array([0, 1, 2, 3, 1, 4, 5, 2], dtype=np.int32)
connectivity_ptr = np.array([0, 4, 8], dtype=np.int32)
nparts = 2
objval = np.zeros(1, dtype=np.int32)
epart = np.zeros(2, dtype=np.int32)
npart = np.zeros(6, dtype=np.int32)
status = part_mesh_nodal(2, 6, connectivity_ptr, connectivity_data, None, None, nparts, None, options, objval, epart, npart)
if status == MetisStatus.OK:
    print(epart)
    print(npart)