CUMULVS: Providing fault-tolerance, visualization and steering of parallel applications

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Description

The use of visualization and computational steering can often assist scientists in analyzing large-scale scientific applications. Fault-tolerance to failures is of great importance when running on a distributed system. However, the details of implementing these features are complex and tedious, leaving many scientists with inadequate development tools. CUMULVS is a library that enables programmers to easily incorporate interactive visualization and computational steering into existing parallel programs. The library is divided into two pieces: one for the application program and one for the, possibly commercial, visualization and steering front-end. Together these two libraries encompass all the connection and data protocols needed ... continued below

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16 p.

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Geist, G.A. II; Kohl, J.A. & Papadopoulos, P.M. September 1, 1996.

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Description

The use of visualization and computational steering can often assist scientists in analyzing large-scale scientific applications. Fault-tolerance to failures is of great importance when running on a distributed system. However, the details of implementing these features are complex and tedious, leaving many scientists with inadequate development tools. CUMULVS is a library that enables programmers to easily incorporate interactive visualization and computational steering into existing parallel programs. The library is divided into two pieces: one for the application program and one for the, possibly commercial, visualization and steering front-end. Together these two libraries encompass all the connection and data protocols needed to dynamically attach multiple independent viewer front-ends to a running parallel application. Viewer programs can also steer one or more user-defined parameters to {open_quotes}close the loop{close_quotes} for computational experiments and analyses. CUMULVS allows the programmer to specify user-directed checkpoints for saving important program state in case of failures, and also provides a mechanism to migrate tasks across heterogeneous machine architectures to achieve improved performance. Details of the CUMULVS design goals and compromises as well as future directions are given.

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16 p.

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OSTI as DE96015048

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  • Environment and tools for parallel scientific computing workshop, Lyon (France), 21-23 Aug 1996

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  • Other: DE96015048
  • Report No.: CONF-9608140--1
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 376380
  • Archival Resource Key: ark:/67531/metadc689098

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 25, 2016, 12:09 p.m.

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Geist, G.A. II; Kohl, J.A. & Papadopoulos, P.M. CUMULVS: Providing fault-tolerance, visualization and steering of parallel applications, article, September 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc689098/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.