Parallel Library for Unstructured Mesh Problems (PLUMP)

Parallel Implementation of a Sparse Approximate Inverse Preconditioner

A parallel implementation of a sparse approximate inverse (spai) preconditioner for distributed memory parallel processors (dmpp) is presented. The fundamental spai algorithm is known to be a useful tool for improving the convergence of iterative solvers for ill-conditioned linear systems. The parallel implementation (parspai) exploits the inherent parallelism in the spai algorithm and the data...

Unified Data Model (UDM): A Library for Parallel I/O and Data Management

Funct onal ty for Unstructured Meshes and Var ables One of the important and powerful functions in the UDM library is the management of unstructured meshes and variables. The library supports a broad range of unstructured meshes, which include meshes with fixed shapes, arbitrary polygons, and arbitrary polyhedrons. A mesh element may be a zone, or face, or edge; i.e., zone-mesh, face-mesh, and ...

Robust Parallel Adaptive Mesh Refinement Software Library for Unstructured Meshes

Unstructured Mesh Libraries for the Ap1000

We present the results from the nal year of a three-year collaborative project between Fujitsu Laboratories and Edinburgh Parallel Computing Centre. We have developed and extended a suite of Parallel Utilities Libraries to support distributed unstructured mesh programming on the AP1000. These libraries cover mesh decomposition , preprocessing, parallel distribution and management and allow the ...

A Domain Decomposition Preconditioner for a Parallel Finite Element Solver on Distributed Unstructured Grids

We consider a number of practical issues associated with the parallel distributed memory solution of elliptic partial diierential equations using unstructured meshes in two dimensions. The rst part of the paper describes a parallel mesh generation algorithm which is designed both for eeciency and to produce a well-partitioned, distributed mesh, suitable for the eecient parallel solution of an e...