Improving communication performance in dense linear algebra via topology aware collectives

Recent results have shown that topology aware mapping reduces network contention in communication-intensive kernels on massively parallel machines. We demonstrate that on mesh interconnects, topology aware mapping also allows for the utilization of highly-efficient topology aware collectives. We map...

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Bibliographic Details
Published in:	2011 International Conference for High Performance Computing, Networking, Storage and Analysis (SC) pp. 1 - 11
Main Authors:	Solomonik, Edgar, Bhatele, Abhinav, Demmel, James
Format:	Conference Proceeding
Language:	English
Published:	New York, NY, USA ACM 12.11.2011 IEEE
Series:	ACM Conferences
Subjects:	Algorithm design and analysis Bandwidth communication Computing methodologies > Parallel computing methodologies > Parallel algorithms exascale interconnect topology Linear algebra mapping Network topology Partitioning algorithms Theory of computation > Design and analysis of algorithms > Parallel algorithms Three dimensional displays Topology interconnect topology mapping performance communication exascale
ISBN:	145030771X, 9781450307710
ISSN:	2167-4329
Online Access:	Get full text
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