Sciweavers

649 search results - page 2 / 130
» A Performance Model of Many-to-One Collective Communications...
Sort
View
PPOPP
2006
ACM
13 years 11 months ago
Collective communication on architectures that support simultaneous communication over multiple links
Traditional collective communication algorithms are designed with the assumption that a node can communicate with only one other node at a time. On new parallel architectures such...
Ernie Chan, Robert A. van de Geijn, William Gropp,...
IPPS
2009
IEEE
13 years 12 months ago
Revisiting communication performance models for computational clusters
—In this paper, we analyze restrictions of traditional models affecting the accuracy of analytical prediction of the execution time of collective communication operations. In par...
Alexey L. Lastovetsky, Vladimir Rychkov, Maureen O...
CCGRID
2008
IEEE
13 years 11 months ago
Overlapping Communication and Computation with High Level Communication Routines
Collective operations and non-blocking point-to-point operations are two important parts of MPI that each provide important performance and programmability benefits. Although non...
Torsten Hoefler, Andrew Lumsdaine
IPPS
2005
IEEE
13 years 11 months ago
Performance Analysis of MPI Collective Operations
Previous studies of application usage show that the performance of collective communications are critical for high-performance computing and are often overlooked when compared to ...
Jelena Pjesivac-Grbovic, Thara Angskun, George Bos...
CCGRID
2007
IEEE
13 years 11 months ago
Adaptive Performance Modeling on Hierarchical Grid Computing Environments
In the past, efficient parallel algorithms have always been developed specifically for the successive generations of parallel systems (vector machines, shared-memory machines, d...
Wahid Nasri, Luiz Angelo Steffenel, Denis Trystram