Metis Namespace Reference

Functions
void	AS_METIS_NodeND (int *nVerts, int *xadj, int *adjncy, int *vwgt, int *options, int *perm, int *iperm, int *map, int *mdswitch)
static void	as_onmetis (int nVerts, Nektar::Array< Nektar::OneD, int > xadj, Nektar::Array< Nektar::OneD, int > adjncy, Nektar::Array< Nektar::OneD, int > perm, Nektar::Array< Nektar::OneD, int > iperm, Nektar::Array< Nektar::OneD, int > map, int mdswitch=1)
static void	PartGraphVKway (int &nVerts, int &nVertConds, Nektar::Array< Nektar::OneD, int > &xadj, Nektar::Array< Nektar::OneD, int > &adjcy, Nektar::Array< Nektar::OneD, int > &vertWgt, Nektar::Array< Nektar::OneD, int > &vertSize, Nektar::Array< Nektar::OneD, int > &edgeWgt, int &nparts, int &volume, Nektar::Array< Nektar::OneD, int > &part)

Function Documentation

void Metis::AS_METIS_NodeND	(	int *	nVerts,
		int *	xadj,
		int *	adjncy,
		int *	vwgt,
		int *	options,
		int *	perm,
		int *	iperm,
		int *	map,
		int *	mdswitch
	)

Referenced by as_onmetis().

static void Metis::as_onmetis ( int  nVerts, Nektar::Array< Nektar::OneD, int >  xadj, Nektar::Array< Nektar::OneD, int >  adjncy, Nektar::Array< Nektar::OneD, int >  perm, Nektar::Array< Nektar::OneD, int >  iperm, Nektar::Array< Nektar::OneD, int >  map, int  mdswitch = 1  )

inlinestatic

Definition at line 53 of file Metis.hpp.

References AS_METIS_NodeND(), and ASSERTL1.

Referenced by Nektar::MultiRegions::MultiLevelBisectionReordering().

    {
        ASSERTL1(xadj.num_elements() == nVerts+1,"Array xadj out of bounds");
        ASSERTL1(perm.num_elements() == nVerts,"Array perm out of bounds");
        ASSERTL1(iperm.num_elements() == nVerts,"Array iperm out of bounds");

        AS_METIS_NodeND(&nVerts, &xadj[0], &adjncy[0], NULL, NULL, &perm[0],
                        &iperm[0], &map[0], &mdswitch);
    }

static void Metis::PartGraphVKway ( int &  nVerts, int &  nVertConds, Nektar::Array< Nektar::OneD, int > &  xadj, Nektar::Array< Nektar::OneD, int > &  adjcy, Nektar::Array< Nektar::OneD, int > &  vertWgt, Nektar::Array< Nektar::OneD, int > &  vertSize, Nektar::Array< Nektar::OneD, int > &  edgeWgt, int &  nparts, int &  volume, Nektar::Array< Nektar::OneD, int > &  part  )

inlinestatic

Definition at line 71 of file Metis.hpp.

Referenced by Nektar::LibUtilities::MeshPartitionMetis::PartitionGraphImpl().

    {
        int *vwgt   = 0;
        int *vsize  = 0;
        int *adjwgt = 0;
        if (vertWgt.num_elements() > 0)
        {
            vwgt = &vertWgt[0];
        }
        if (vertSize.num_elements() > 0)
        {
            vsize = &vertSize[0];
        }
        if (edgeWgt.num_elements() > 0)
        {
            adjwgt = &edgeWgt[0];
        }
        // number of balancing conditions (size of vertex multi-weight)
        int ncon = nVertConds;
        int options[METIS_NOPTIONS];
        METIS_SetDefaultOptions(options);
        METIS_PartGraphKway(&nVerts, &ncon, &xadj[0], &adjcy[0], vwgt, vsize,
                            adjwgt, &nparts, 0, 0, options, &volume, &part[0]);
    }