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ACSC
2007
IEEE
16 years 1 months ago
Improved Shortest Path Algorithms For Nearly Acyclic Directed Graphs
This paper presents new algorithms for computing single source shortest paths (SSSPs) in a nearly acyclic directed graph G. The first part introduces higher-order decomposition. ...
Lin Tian, Tadao Takaoka
IPPS
2007
IEEE
16 years 1 months ago
Advanced Shortest Paths Algorithms on a Massively-Multithreaded Architecture
We present a study of multithreaded implementations of Thorup’s algorithm for solving the Single Source Shortest Path (SSSP) problem for undirected graphs. Our implementations l...
Joseph R. Crobak, Jonathan W. Berry, Kamesh Maddur...
FOCS
2006
IEEE
16 years 28 days ago
Dispersion of Mass and the Complexity of Randomized Geometric Algorithms
How much can randomness help computation? Motivated by this general question and by volume computation, one of the few instances where randomness provably helps, we analyze a noti...
Luis Rademacher, Santosh Vempala
IPPS
2006
IEEE
16 years 27 days ago
Dynamic power saving in fat-tree interconnection networks using on/off links
Current trends in high-performance parallel computers show that fat-tree interconnection networks are one of the most popular topologies. The particular characteristics of this to...
Marina Alonso, Salvador Coll, Juan Miguel Mart&iac...
CCGRID
2005
IEEE
16 years 15 days ago
Continuous resources allocation in Internet data centers
Internet data centers (IDCs) perform multi-customer hosting on a virtualized collection of resources while Grid computing generalizes distributed computing by focusing on large sc...
Youssef Hamadi