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Author, Editor(s)

Author(s):

Brodal, Gerth Stølting
Träff, Jesper Larsson
Zaroliagis, Christos

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BibTeX cite key*:

Brodal1998d

Title

Title*:

A Parallel Priority Queue with Constant Time Operations

Journal

Journal Title*:

Journal of Parallel and Distributed Computing, Special Issue on Parallel Data Structures

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Language:

English

Publisher

Publisher's
Name:

Academic Press

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Publisher's
Address:


ISSN:

0743-7315

Vol, No, pp, Date

Volume*:

49

Number:

1

Publishing Date:

1998

Pages*:

4-21

Number of
VG Pages:


Page Start:


Page End:


Sequence Number:


DOI:


Note, Abstract, ©

Note:


(LaTeX) Abstract:

We present a parallel priority queue that supports the following
operations in constant time: {\em parallel insertion\/} of a
sequence of elements ordered according to key,
{\em parallel decrease key\/} for a sequence of elements ordered
according to key, {\em deletion of the minimum key element}, as well as
{\em deletion of an arbitrary element}. Our data structure is the first
to support multi insertion and multi decrease key in constant time.
The priority queue can be implemented on the EREW PRAM, and can
perform any sequence of $n$ operations in $O(n)$ time and $O(m\log
n)$ work, $m$ being the total number of keys inserted and/or
updated. A main application is a parallel implementation of
Dijkstra's algorithm for the single-source shortest path problem,
which runs in $O(n)$ time and $O(m\log n)$ work on a CREW PRAM on
graphs with $n$ vertices and $m$ edges. This is a logarithmic factor
improvement in the running time compared with previous approaches.

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Access Level:

Public

Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Algorithms and Complexity Group

Audience:

Expert

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BibTeX Entry:

@ARTICLE{Brodal1998d,
AUTHOR = {Brodal, Gerth Stølting and Tr{\"a}ff, Jesper Larsson and Zaroliagis, Christos},
TITLE = {A Parallel Priority Queue with Constant Time Operations},
JOURNAL = {Journal of Parallel and Distributed Computing, Special Issue on Parallel Data Structures},
PUBLISHER = {Academic Press},
YEAR = {1998},
NUMBER = {1},
VOLUME = {49},
PAGES = {4--21},
ISBN = {0743-7315},
}


Entry last modified by Uwe Brahm, 03/02/2010
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Editor(s)
Gerth Stølting Brodal
Created
01/23/1999 08:09:27 PM
Revisions
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Editor(s)
Uwe Brahm
Christine Kiesel
Christine Kiesel
Uwe Brahm
Uwe Brahm
Edit Dates
02/15/2005 09:13:59 PM
26/04/99 11:55:59
26/04/99 11:55:24
01.04.99 12:01:17
30.03.99 23:08:24
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