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CCGRID
2007
IEEE
15 years 4 months ago
High-Performance MPI Broadcast Algorithm for Grid Environments Utilizing Multi-lane NICs
The performance of MPI collective operations, such as broadcast and reduction, is heavily affected by network topologies, especially in grid environments. Many techniques to cons...
Tatsuhiro Chiba, Toshio Endo, Satoshi Matsuoka
FOCS
2009
IEEE
15 years 4 months ago
KKL, Kruskal-Katona, and Monotone Nets
We generalize the Kahn-Kalai-Linial (KKL) Theorem to random walks on Cayley and Schreier graphs, making progress on an open problem of Hoory, Linial, and Wigderson. In our general...
Ryan O'Donnell, Karl Wimmer
CN
2000
67views more  CN 2000»
14 years 9 months ago
SPREAD: Scalable platform for reliable and efficient automated distribution
We introduce SPREAD - a new architecture for distributing and maintaining up-to-date Web content that simultaneously employs three different mechanisms: client validation, server ...
Pablo Rodriguez, Sandeep Sibal
PODC
2005
ACM
15 years 3 months ago
Primal-dual based distributed algorithms for vertex cover with semi-hard capacities
In this paper we consider the weighted, capacitated vertex cover problem with hard capacities (capVC). Here, we are given an undirected graph G = (V, E), non-negative vertex weigh...
Fabrizio Grandoni, Jochen Könemann, Alessandr...
DAM
2010
105views more  DAM 2010»
14 years 7 months ago
An iterative approach to graph irregularity strength
An assignment of positive integer weights to the edges of a simple graph G is called irregular if the weighted degrees of the vertices are all different. The irregularity strength,...
Michael Ferrara, Ronald J. Gould, Michal Karonski,...