Impressions of ICOTS5

Abstract not available

Mesh partitioning: A multilevel balancing and refinement algorithm

Multilevel algorithms are a successful class of optimisation techniques which address the mesh partitioning problem. They usually combine a graph contraction algorithm together with a local optimisation method which refines the partition at each graph level. In this paper we present an enhancement of the technique which uses imbalance to achieve higher quality partitions. We also present a formulation of the Kernighan-Lin partition optimisation algorithm which incorporates load-balancing. The resulting algorithm is tested against a different but related state-of the-art partitioner and shown to provide improved results.

CAPTools communications library (CAPLib) version 2.0-022

Abstract not available

The design and Evaluation of 'CAP Tools' - A computer aided parallelisation tool-kit

Abstract not available

Performance of case-based retrieval of 3-D shapes for the design of metal castings

Abstract not available

A methodology for spreadsheet development based on data structure

Abstract not available

Two-stage open shop scheduling with a bottleneck machine

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Two-machine open shop scheduling with special transportation times

Abstract not available

Assembly scheduling with batching

Abstract not available

Flow shop scheduling problems under machine-dependent precedence constraints

Abstract not available

Multilevel mesh partitioning for aspect ratio

Multilevel algorithms are a successful class of optimisation techniques which address the mesh partitioning problem. They usually combine a graph contraction algorithm together with a local optimisation method which refines the partition at each graph level. To date these algorithms have been used almost exclusively to minimise the cut-edge weight, however it has been shown that for certain classes of solution algorithm, the convergence of the solver is strongly influenced by the subdomain aspect ratio. In this paper therefore, we modify the multilevel algorithms in order to optimise a cost function based on aspect ratio. Several variants of the algorithms are tested and shown to provide excellent results.

Aspect ratio for mesh partitioning

This paper deals with the measure of Aspect Ratio for mesh partitioning and gives hints why, for certain solvers, the Aspect Ratio of partitions plays an important role. We define and rate different kinds of Aspect Ratio, present a new center-based partitioning method which optimizes this measure implicitly and rate several existing partitioning methods and tools under the criterion of Aspect Ratio.

Advances in Deontic Logic [Review]

Abstract not available

A multilevel approach to the travelling salesman problem

Abstract not available