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CCGRID
2007
IEEE
14 years 2 months ago
Exploiting Heterogeneity for Collective Data Downloading in Volunteer-based Networks
Abstract— Scientific computing is being increasingly deployed over volunteer-based distributed computing environments consisting of idle resources on donated user machines. A fu...
Jinoh Kim, Abhishek Chandra, Jon B. Weissman
IPPS
2007
IEEE
14 years 2 months ago
Taking Advantage of Collective Operation Semantics for Loosely Coupled Simulations
Although a loosely coupled component-based framework offers flexibility and versatility for building and deploying large-scale multi-physics simulation systems, the performance o...
Joe Shang-Chieh Wu, Alan Sussman
IPPS
2008
IEEE
14 years 2 months ago
Performance characterization and optimization of parallel I/O on the Cray XT
This paper presents an extensive characterization, tuning, and optimization of parallel I/O on the Cray XT supercomputer, named Jaguar, at Oak Ridge National Laboratory. We have c...
Weikuan Yu, Jeffrey S. Vetter, Sarp Oral
ICCS
2009
Springer
14 years 9 days ago
Performance Evaluation of Collective Write Algorithms in MPI I/O
MPI is the de-facto standard for message passing in parallel scientific applications. MPI-IO is a part of the MPI-2 specification defining file I/O operations in the MPI world....
Mohamad Chaarawi, Suneet Chandok, Edgar Gabriel
SC
2005
ACM
14 years 1 months ago
Transformations to Parallel Codes for Communication-Computation Overlap
This paper presents program transformations directed toward improving communication-computation overlap in parallel programs that use MPI’s collective operations. Our transforma...
Anthony Danalis, Ki-Yong Kim, Lori L. Pollock, D. ...