DOLFIN-X
DOLFIN-X C++ interface
|
Interface to SCOTCH-PT (parallel version) More...
Functions | |
AdjacencyList< std::int32_t > | partition (const MPI_Comm mpi_comm, const int nparts, const AdjacencyList< SCOTCH_Num > &local_graph, const std::vector< std::size_t > &node_weights, std::int32_t num_ghost_nodes, bool ghosting) |
Compute distributed graph partition. More... | |
std::pair< std::vector< int >, std::vector< int > > | compute_gps (const AdjacencyList< std::int32_t > &graph, std::size_t num_passes=5) |
Compute reordering (map[old] -> new) using Gibbs-Poole-Stockmeyer (GPS) re-ordering. More... | |
std::pair< std::vector< int >, std::vector< int > > | compute_reordering (const AdjacencyList< std::int32_t > &graph, std::string scotch_strategy="") |
Compute graph re-ordering. More... | |
Interface to SCOTCH-PT (parallel version)
std::pair< std::vector< int >, std::vector< int > > dolfinx::graph::SCOTCH::compute_gps | ( | const AdjacencyList< std::int32_t > & | graph, |
std::size_t | num_passes = 5 |
||
) |
Compute reordering (map[old] -> new) using Gibbs-Poole-Stockmeyer (GPS) re-ordering.
[in] | graph | Input graph |
[in] | num_passes | Number of passes to use in GPS algorithm |
std::pair< std::vector< int >, std::vector< int > > dolfinx::graph::SCOTCH::compute_reordering | ( | const AdjacencyList< std::int32_t > & | graph, |
std::string | scotch_strategy = "" |
||
) |
Compute graph re-ordering.
[in] | graph | Input graph |
[in] | scotch_strategy | (string) SCOTCH parameters |
graph::AdjacencyList< std::int32_t > dolfinx::graph::SCOTCH::partition | ( | const MPI_Comm | mpi_comm, |
const int | nparts, | ||
const AdjacencyList< SCOTCH_Num > & | local_graph, | ||
const std::vector< std::size_t > & | node_weights, | ||
std::int32_t | num_ghost_nodes, | ||
bool | ghosting | ||
) |
Compute distributed graph partition.
mpi_comm | MPI Communicator |
nparts | Number of partitions to divide graph nodes into |
local_graph | Node connectivity graph |
node_weights | Weight for each node (optional) |
num_ghost_nodes | Number of graph nodes which are owned on other processes |
ghosting | Flag to enable ghosting of the output node distribution |