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Sparse matrix block-cyclic redistribution

Authors: Gerardo Bandera; Emilio L. Zapata;

Sparse matrix block-cyclic redistribution

Abstract

Run-time support for the CYCLIC(k) redistribution on the SPMD computation model is presently very relevant for the scientific community. This work is focused to the characterization of the sparse matrix redistribution and its associate problematic due to the use of compressed representations. Two main improvements about the buffering and the coordinates calculation modify the original algorithm. Our solutions contain a collecting, a communication and mixing stage with different influence in the execution time depending on the sparsity of the matrix and the number of processors. Experimental results have been carried out on a Cray T3E for real matrices and different redistribution parameters.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
8
Average
Average
Top 10%
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