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Asynchronous PRAMs are (almost) as good as synchronous PRAMs

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3 Author(s)
Martel, C. ; Div. of Comput. Sci., California Univ., Davis, CA, USA ; Subramonian, R. ; Part, A.

A PRAM (parallel random-access-machine) model that allows processors to have arbitrary asynchronous behavior is introduced. The main result shows that any n-processor CRCW (concurrent-read, concurrent-write) PRAM program can be simulated on an asynchronous CRCW PRAM using O(n) expected work per parallel step and up to n/log n log*n asynchronous processors. It is shown that a synchronization primitive for n parallel instructions can be computed using O(n) expected work by a system of asynchronous processors. Since a special case of asynchronous behavior is a fail-stop error, the simulation technique described above can convert any PRAM program into a PRAM program that is resistant to all fail-stop errors and has the same expected work as the original program

Published in:
Foundations of Computer Science, 1990. Proceedings., 31st Annual Symposium on

Date of Conference: 22-24 Oct 1990

Page(s):
590 - 599 vol.2
Meeting Date :
22 Oct 1990-24 Oct 1990
Print ISBN:
0-8186-2082-X
INSPEC Accession Number:
3908538
Conference Location :
St. Louis, MO
Digital Object Identifier :
10.1109/FSCS.1990.89580
Product Type:
Conference Publications

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