The Nexus task-parallel runtime system

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A runtime system provides a parallel language compiler with an interface to the low-level facilities required to support interaction between concurrently executing program components. Nexus is a portable runtime system for task-parallel programming languages. Distinguishing features of Nexus include its support for multiple threads of control, dynamic processor acquisition, dynamic address space creation, a global memory model via interprocessor references, and asynchronous events. In addition, it supports heterogeneity at multiple levels, allowing a single computation to utilize different programming languages, executables, processors, and network protocols. Nexus is currently being used as a compiler target for two task-parallel languages: Fortran M ... continued below

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7 p.

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Foster, I.; Tuecke, S. & Kesselman, C. December 31, 1994.

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Description

A runtime system provides a parallel language compiler with an interface to the low-level facilities required to support interaction between concurrently executing program components. Nexus is a portable runtime system for task-parallel programming languages. Distinguishing features of Nexus include its support for multiple threads of control, dynamic processor acquisition, dynamic address space creation, a global memory model via interprocessor references, and asynchronous events. In addition, it supports heterogeneity at multiple levels, allowing a single computation to utilize different programming languages, executables, processors, and network protocols. Nexus is currently being used as a compiler target for two task-parallel languages: Fortran M and Compositional C++. In this paper, we present the Nexus design, outline techniques used to implement Nexus on parallel computers, show how it is used in compilers, and compare its performance with that of another runtime system.

Physical Description

7 p.

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OSTI as DE96014880

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  • 1. international workshop on parallel processing, Bangalore (India), 23-26 Dec 1994

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  • Other: DE96014880
  • Report No.: ANL/MCS/P--581-0396
  • Report No.: CONF-9412130--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 390589
  • Archival Resource Key: ark:/67531/metadc682749

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  • December 31, 1994

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  • July 25, 2015, 2:20 a.m.

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  • Aug. 23, 2016, 3:12 p.m.

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Foster, I.; Tuecke, S. & Kesselman, C. The Nexus task-parallel runtime system, article, December 31, 1994; Illinois. (digital.library.unt.edu/ark:/67531/metadc682749/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.