PUMI: Parallel Unstructured Mesh Infrastructure

摘要: The Parallel Unstructured Mesh Infrastructure (PUMI) is designed to support the representation of, and operations on, unstructured meshes as needed for execution of mesh-based simulations on massively parallel computers. In PUMI, mesh complete in sense being able provide any adjacency entities multiple topologies O(1) time, fully distributed relationships across memory spaces a manner consistent with supporting simulation workflows. PUMI's maintains links high-level model definition terms topology produced by CAD systems, specifically efficiently evolving required generation adaptation. To needs simulations, PUMI also supports specific set services such migration between parts while maintaining adjacencies, read-only entity copies from neighboring (ghosting), repartitioning evolves, dynamic load balancing.Here we present overall design, software structures, example programs, performance results. effectiveness demonstrated its applications adaptive