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» Optimization of Collective Communications in HeteroMPI
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2008
IEEE
14 years 2 months ago
Exploiting data compression in collective I/O techniques
This paper presents Two-Phase Compressed I/O (TPC I/O,) an optimization of the Two-Phase collective I/O technique from ROMIO, the most popular MPI-IO implementation. In order to r...
Rosa Filgueira, David E. Singh, Juan Carlos Pichel...
ARCS
2006
Springer
13 years 11 months ago
Power-Aware Collective Tree Exploration
An n-node tree has to be explored by a group of k mobile robots deployed initially at the root. Robots traverse the edges of the tree until all nodes are visited. We would like to ...
Miroslaw Dynia, Miroslaw Korzeniowski, Christian S...
VTC
2010
IEEE
125views Communications» more  VTC 2010»
13 years 6 months ago
Solving the Coupon Collector's Problem for the Safety Beaconing in the IEEE 802.11p WAVE
—For the WAVE applications built on safety beacons, it is imperative that the neighboring vehicle information be collected as quickly and efficiently as possible. But the unreli...
Hyundoc Seo, Sangki Yun, Hyogon Kim
ICDE
2006
IEEE
201views Database» more  ICDE 2006»
14 years 9 months ago
Approximate Data Collection in Sensor Networks using Probabilistic Models
Wireless sensor networks are proving to be useful in a variety of settings. A core challenge in these networks is to minimize energy consumption. Prior database research has propo...
David Chu, Amol Deshpande, Joseph M. Hellerstein, ...
PVM
2009
Springer
14 years 2 months ago
Hierarchical Collectives in MPICH2
Abstract. Most parallel systems on which MPI is used are now hierarchical: some processors are much closer to others in terms of interconnect performance. One of the most common su...
Hao Zhu, David Goodell, William Gropp, Rajeev Thak...