Proceedings of the Sixth Workshop on I/O in Parallel and Distributed Systems 1999
DOI: 10.1145/301816.301830
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The impact of spatial layout of jobs on parallel I/O performance

Abstract: Input/Output is a big obstacle to effective use of tenflopsscale computing systems, Motivated by earlier parallel I/O meaurements on an Intel TFLOPS machine, we conduct studies to determine the sensitivity of parallel I/O performance on multi-progmmmed mesh-connected machines with respect to number of I/O nodes, number of compute nodes, network link bandwidth, I/O node bandwidth, spatial layout of jobs, and read or write demands of applications.Our extensive simulations and analytical modeling yield important … Show more

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Cited by 6 publications
(13 citation statements)
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“…It has been observed that spacing I/O-intensive jobs in time on a parallel file system improves performance [18]. Our emphasis is primarily to spread these in space, and also to identify specific symbiotic partners for such jobs.…”
Section: Other Related Workmentioning
confidence: 99%
“…It has been observed that spacing I/O-intensive jobs in time on a parallel file system improves performance [18]. Our emphasis is primarily to spread these in space, and also to identify specific symbiotic partners for such jobs.…”
Section: Other Related Workmentioning
confidence: 99%
“…Entretanto, poucos trabalhos têm visado o desenvolvimento de políticas voltadas para aplicações da classe I/O-Bound (SILVA; SCHERSON, 2000;MACHE et al, 1999;CHASE et al, 1999). Esses trabalhos avaliam tanto aplicações Disk-Bound quanto Network-Bound que manipulam grandes volumes de dados (data intensive).…”
Section: )unclassified
“…One of the research direction on parallel I/O is to study how parallel I/O performance is affected by the spatial layout of tasks on a mesh cluster [5,6,1,2], much like the processor allocation problem described earlier in the context of optimizing communication traffic.…”
Section: Introductionmentioning
confidence: 99%
“…al. [6] showed that on a mesh-connected cluster the spatial layout of a task directly affects network contention due to I/O traffic and thus has significant impact on parallel I/O performance. There is serious contention for write traffic when the I/O nodes lie vertically on the left or right side of the mesh, and serious read traffic when the I/O nodes lie horizontally, due to the use of XY-routing in the mesh cluster topology.…”
Section: Introductionmentioning
confidence: 99%
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