Sciweavers

231 search results - page 15 / 47
» Parallel algorithms for indefinite linear systems
Sort
View
IPPS
1998
IEEE
14 years 25 days ago
Processor Lower Bound Formulas for Array Computations and Parametric Diophantine Systems
Using a directed acyclic graph (dag) model of algorithms, we solve a problem related to precedenceconstrained multiprocessor schedules for array computations: Given a sequence of ...
Peter R. Cappello, Ömer Egecioglu
SC
2000
ACM
14 years 28 days ago
Parallel Smoothed Aggregation Multigrid: Aggregation Strategies on Massively Parallel Machines
Algebraic multigrid methods offer the hope that multigrid convergence can be achieved (for at least some important applications) without a great deal of effort from engineers an...
Ray S. Tuminaro, Charles Tong
PPSC
1993
13 years 10 months ago
Parallel Preconditioning and Approximate Inverses on the Connection Machine
We present a new approach to preconditioning for very large, sparse, non-symmetric, linear systems. We explicitly compute an approximate inverse to our original matrix that can be...
Marcus J. Grote, Horst D. Simon
DEXA
2005
Springer
77views Database» more  DEXA 2005»
14 years 2 months ago
An Optimal Skew-insensitive Join and Multi-join Algorithm for Distributed Architectures
Abstract. The development of scalable parallel database systems requires the design of efficient algorithms for the join operation which is the most frequent and expensive operatio...
Mostafa Bamha
MP
1998
108views more  MP 1998»
13 years 8 months ago
Base polytopes of series-parallel posets: Linear description and optimization
We define the base polytope B(P, g) of a partially ordered set P and a supermodular function g on the ideals ofP as the convex hull of the incidence vectors of all linear extensio...
Rainer Schrader, Andreas S. Schulz, Georg Wambach