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IPPS
2006
IEEE

Optimizing bandwidth limited problems using one-sided communication and overlap

14 years 6 months ago
Optimizing bandwidth limited problems using one-sided communication and overlap
This paper demonstrates the one-sided communication used in languages like UPC can provide a significant performance advantage for bandwidth-limited applications. This is shown through communication microbenchmarks and a case-study of UPC and MPI implementations of the NAS FT benchmark. Our optimizations rely on aggressively overlapping communication with computation, alleviating bottlenecks that typically occur when communication is isolated in a single phase. The new algorithms send more and smaller messages, yet the one-sided versions achieve
Christian Bell, Dan Bonachea, Rajesh Nishtala, Kat
Added 12 Jun 2010
Updated 12 Jun 2010
Type Conference
Year 2006
Where IPPS
Authors Christian Bell, Dan Bonachea, Rajesh Nishtala, Katherine A. Yelick
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