NDLI: Active pebbles: parallel programming for data-driven applications

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Active pebbles: parallel programming for data-driven applications

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Active pebbles: parallel programming for data-driven applications

Content Provider	ACM Digital Library
Author	Lumsdaine, Andrew Willcock, Jeremiah James Edmonds, Nicholas Gerard Hoefler, Torsten
Abstract	The scope of scientific computing continues to grow and now includes diverse application areas such as network analysis, combinatorialcomputing, and knowledge discovery, to name just a few. Large problems in these application areas require HPC resources, but they exhibit computation and communication patterns that are irregular, fine-grained, and non-local, making it difficult to apply traditional HPC approaches to achieve scalable solutions. In this paper we present Active Pebbles, a programming and execution model developed explicitly to enable the development of scalable software for these emerging application areas. Our approach relies on five main techniques--scalable addressing, active routing, message coalescing, message reduction, and termination detection--to separate algorithm expression from communication optimization. Using this approach, algorithms can be expressed in their natural forms, with their natural levels of granularity, while optimizations necessary for scalability can be applied automatically to match the characteristics of particular machines. We implement several example kernels using both Active Pebbles and existing programming models, evaluating both programmability and performance. Our experimental results demonstrate that the Active Pebbles model can succinctly and directly express irregular application kernels, while still achieving performance comparable to MPI-based implementations that are significantly more complex.
Starting Page	235
Ending Page	244
Page Count	10
File Format	PDF
ISBN	9781450301022
DOI	10.1145/1995896.1995934
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-05-31
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Programming models Active messages Irregular applications
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Active pebbles: a programming model for highly parallel fine-grained data-driven computations

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