Sciweavers

97 search results - page 15 / 20
» Sparse collective operations for MPI
Sort
View
NECO
2008
129views more  NECO 2008»
13 years 7 months ago
Sparse Coding via Thresholding and Local Competition in Neural Circuits
While evidence indicates that neural systems may be employing sparse approximations to represent sensed stimuli, the mechanisms underlying this ability are not understood. We desc...
Christopher J. Rozell, Don H. Johnson, Richard G. ...
PPOPP
2010
ACM
14 years 4 months ago
Scalable communication protocols for dynamic sparse data exchange
Many large-scale parallel programs follow a bulk synchronous parallel (BSP) structure with distinct computation and communication phases. Although the communication phase in such ...
Torsten Hoefler, Christian Siebert, Andrew Lumsdai...
IISWC
2006
IEEE
14 years 1 months ago
Characterization of Scientific Workloads on Systems with Multi-Core Processors
Multi-core processors are planned for virtually all next-generation HPC systems. In a preliminary evaluation of AMD Opteron Dual-Core processor systems, we investigated the scaling...
Sadaf R. Alam, Richard F. Barrett, Jeffery A. Kueh...
PVM
2005
Springer
14 years 28 days ago
Implementing MPI-IO Shared File Pointers Without File System Support
Abstract. The ROMIO implementation of the MPI-IO standard provides a portable infrastructure for use on top of any number of different underlying storage targets. These targets va...
Robert Latham, Robert B. Ross, Rajeev Thakur, Bria...
IJHPCA
2010
105views more  IJHPCA 2010»
13 years 6 months ago
A Pipelined Algorithm for Large, Irregular All-Gather Problems
We describe and evaluate a new, pipelined algorithm for large, irregular all-gather problems. In the irregular all-gather problem each process in a set of processes contributes in...
Jesper Larsson Träff, Andreas Ripke, Christia...