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 George A Geist

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Average citations per article5.97
Citation Count179
Publication count30
Publication years1987-2008
Available for download2
Average downloads per article1,077.50
Downloads (cumulative)2,155
Downloads (12 Months)53
Downloads (6 Weeks)7
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February 2008 PDP '08: Proceedings of the 16th Euromicro Conference on Parallel, Distributed and Network-Based Processing (PDP 2008)
Publisher: IEEE Computer Society
Citation Count: 0

This paper describes recent accomplishments in providing a virtualized environment concept and prototype for scientific application development and deployment as part of the Harness High Performance Computing (HPC) Workbench research effort. The presented work focuses on tools and mechanisms that simplify scientific application development and deployment tasks, such that only ...

April 2005 IPDPS '05: Proceedings of the 19th IEEE International Parallel and Distributed Processing Symposium (IPDPS'05) - Workshop 1 - Volume 02
Publisher: IEEE Computer Society
Citation Count: 5

Harness is a pluggable heterogeneous Distributed Virtual Machine (DVM) environment for parallel and distributed scientific computing. This paper describes recent improvements in the Harness kernel design. By using a lightweight approach and moving previously integrated system services into software modules, the software becomes more versatile and adaptable. This paper outlines ...

April 2002 ICCS '02: Proceedings of the International Conference on Computational Science-Part II
Publisher: Springer-Verlag
Citation Count: 6

Harness is an adaptable fault-tolerant virtual machine environment for next-generation heterogeneous distributed computing developed as a follow on to PVM. It additionally enables the assembly of applications from plug-ins and provides fault-tolerance. This work describes the distributed control, which manages global state replication to ensure a high-availability of service. Group ...

September 2001 Proceedings of the 8th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Publisher: Springer-Verlag
Citation Count: 3

Harness is a reconfigurable, heterogeneous distributed meta-computing framework for the dynamic configuration of distributed virtual machines, through the use of parallel "plug-in" software components. A parallel plug-in is a software module that exists as a synchronized collection of traditional plug-ins distributed across a parallel set of resources. As a follow-on ...

December 1999 Parallel Computing - Special Anniversary issue: Volume 25 Issue 13-14, Dec. 1999
Publisher: Elsevier Science Publishers B. V.
Citation Count: 7

Keywords: NAS parallel benchmark, cluster computing, message passing interface (MPI), parallel virtual machine (PVM), meta computing, heterogeneous computing, networked computing, paralle I/O

October 1999 Future Generation Computer Systems - Special issue on metacomputing: Volume 15 Issue 5-6, Oct. 1999
Publisher: Elsevier Science Publishers B. V.
Citation Count: 28

Keywords: distributed application, message-passing library, metacomputing, PVM, distributed virtual machine

July 1999 SIAM Journal on Matrix Analysis and Applications: Volume 20 Issue 4, Oct. 1999
Publisher: Society for Industrial and Applied Mathematics
Citation Count: 2

The BR algorithm, a new method for calculating the eigenvalues of an upper Hessenberg matrix, is introduced. It is a bulge-chasing algorithm like the QR algorithm, but, unlike the QR algorithm, it is well adapted to computing the eigenvalues of the narrow-band, nearly tridiagonal matrices generated by the look-ahead Lanczos ...
Keywords: eigenvalue computation, $QR$ algorithm, unsymmetric Lanczos process

September 1997 International Journal of High Performance Computing Applications: Volume 11 Issue 3, September 1997
Publisher: Sage Publications, Inc.
Citation Count: 4

The use of visualization and computational steering can often assist scientists in analyzing large-scale scientific applications. Fault tolerance to failures is of great impor tance when running on a distributed system. However, the details of implementing these features are complex and tedious, leaving many scientists with inadequate develop ment tools. ...

June 1996 International Journal of High Performance Computing Applications: Volume 10 Issue 2-3, June 1996
Publisher: Sage Publications, Inc.
Citation Count: 0

The authors present experiences relating to two simula tions running on a dedicated network of supercomputers that are connected and scheduled with I-WAY. Each code uses PVM parallel virtual machine as the message- passing layer so that the heterogeneity of the computers becomes transparent. These computationally intensive codes require hundreds ...

January 1996 HICSS '96: Proceedings of the 29th Hawaii International Conference on System Sciences Volume 1: Software Technology and Architecture
Publisher: IEEE Computer Society
Citation Count: 9

One of the more bothersome aspects of developing a parallel program is that of monitoring the behavior of the program for debugging and performance tuning. Often there is no intrinsic support for examining program state and dynamics in a parallel programming system, let alone a useful interface for analyzing or ...

June 1994 PARA '94: Proceedings of the First International Workshop on Parallel Scientific Computing
Publisher: Springer-Verlag
Citation Count: 1

May 1994 Scientific Programming: Volume 3 Issue 1, Spring 1994
Publisher: IOS Press
Citation Count: 3

Network computing seeks to utilize the aggregate resources of many networked computers to solve a single problem. In so doing it is often possible to obtain supercomputer performance from an inexpensive local area network. The drawback is that network computing is complicated and error prone when done by hand, especially ...

April 1994 Parallel Computing - Special issue: message passing interfaces: Volume 20 Issue 4, April 1994
Publisher: Elsevier Science Publishers B. V.
Citation Count: 36

Keywords: message passing, case studies, networked computing platforms, PVM system, performance

October 1993 Proceedings of the Second International ACPC Conference on Parallel Computation
Publisher: Springer-Verlag
Citation Count: 3

March 1993 International Journal of High Performance Computing Applications: Volume 7 Issue 1, March 1993
Publisher: Sage Publications, Inc.
Citation Count: 0

16 published by ACM
December 1992 ACM Transactions on Mathematical Software (TOMS): Volume 18 Issue 4, Dec. 1992
Publisher: ACM
Citation Count: 2
Downloads (6 Weeks): 7,   Downloads (12 Months): 48,   Downloads (Overall): 1,719

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This paper describes programs to reduce a nonsymmetric matrix to tridiagonal form, to compute the eigenvalues of the tridiagonal matrix, to improve the accuracy of an eigenvalue, and to compute the corresponding eigenvector. The intended purpose of the software is to find a few eigenpairs of a dense nonsymmetric matrix ...
Keywords: nonsymmetric, numerical algorithms, condensed form, eigenvalues

June 1992 Concurrency: Practice and Experience: Volume 4 Issue 4, June 1992
Publisher: John Wiley and Sons Ltd.
Citation Count: 44

June 1992 The Journal of Supercomputing: Volume 6 Issue 2, June, 1992
Publisher: Kluwer Academic Publishers
Citation Count: 0

February 1992
Citation Count: 0

HeNCE, Heterogeneous Network Computing Environment, is a graphical parallel programming environment. HeNCE provides an easy to use interface for creating, compiling, executing, and debugging parallel programs. HeNCE programs can be run on a single Unix workstation or over a network of heterogeneous machines, possibly including supercomputers. This report describes the ...


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