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CCGRID
2008
IEEE
14 years 2 months ago
MPI Collectives on Modern Multicore Clusters: Performance Optimizations and Communication Characteristics
The advances in multicore technology and modern interconnects is rapidly accelerating the number of cores deployed in today’s commodity clusters. A majority of parallel applicat...
Amith R. Mamidala, Rahul Kumar, Debraj De, Dhabale...
CLUSTER
2006
IEEE
13 years 11 months ago
Modeling Network Contention Effects on All-to-All Operations
One of the most important collective communication patterns used in scientific applications is the complete exchange, also called All-to-All. Although efficient complete exchange ...
Luiz Angelo Steffenel
IPPS
2000
IEEE
13 years 11 months ago
Bandwidth-Efficient Collective Communication for Clustered Wide Area Systems
Metacomputing infrastructures couple multiple clusters (or MPPs) via wide-area networks. A major problem in programming parallel applications for such platforms is their hierarchi...
Thilo Kielmann, Henri E. Bal, Sergei Gorlatch
IPPS
2007
IEEE
14 years 1 months ago
Link Shutdown Opportunities During Collective Communications in 3-D Torus Nets
As modern computing clusters used in scientific computing applications scale to ever-larger sizes and capabilities, their operational energy costs have become prohibitive. While ...
S. Conner, Sayaka Akioka, Mary Jane Irwin, Padma R...
SC
2005
ACM
14 years 1 months ago
Optimizing All-to-All Collective Communication by Exploiting Concurrency in Modern Networks
The paper proposes a novel approach for optimizing performance of all-to-all collective communication by taking advantage of concurrency available in modern networks such as Infin...
Vinod Tipparaju, Jarek Nieplocha