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ICPPW
2005
IEEE
13 years 11 months ago
A Practical Approach to the Rating of Barrier Algorithms Using the LogP Model and Open MPI
Large–scale parallel applications performing global synchronization may spend a significant amount of execution time waiting for the completion of a barrier operation. Conseque...
Torsten Hoefler, Lavinio Cerquetti, Torsten Mehlan...
PDP
2010
IEEE
13 years 10 months ago
hwloc: A Generic Framework for Managing Hardware Affinities in HPC Applications
The increasing numbers of cores, shared caches and memory nodes within machines introduces a complex hardware topology. High-performance computing applications now have to carefull...
François Broquedis, Jérôme Cle...
HRI
2009
ACM
13 years 10 months ago
Nonverbal leakage in robots: communication of intentions through seemingly unintentional behavior
Human communication involves a number of nonverbal cues that are seemingly unintentional, unconscious, and automatic—both in their production and perception—and convey rich in...
Bilge Mutlu, Fumitaka Yamaoka, Takayuki Kanda, Hir...
IPPS
2008
IEEE
14 years 5 days ago
Scaling alltoall collective on multi-core systems
MPI Alltoall is one of the most communication intense collective operation used in many parallel applications. Recently, the supercomputing arena has witnessed phenomenal growth o...
Rahul Kumar, Amith R. Mamidala, Dhabaleswar K. Pan...
P2P
2010
IEEE
127views Communications» more  P2P 2010»
13 years 3 months ago
Waiting for Anonymity: Understanding Delays in the Tor Overlay
Although Tor is the most widely used overlay for providing anonymity services, its users often experience very high delays. Because much of Tor usage is for Web applications, which...
Prithula Dhungel, Moritz Steiner, Ivinko Rimac, Vo...