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Summary: Time Bounds for Mutual Exclusion and Related Problems \Lambda
(Extended Abstract)
JaeHeon Yang
Department of Computer Science
The University of Maryland
College Park, Maryland 207423255
James H. Anderson
Department of Computer Science
The University of North Carolina
Chapel Hill, North Carolina 275993175
Abstract
We establish tradeoffs between time complexity and
write and accesscontention for solutions to the mu
tual exclusion problem. The writecontention (access
contention) of a concurrent program is the number
of processes that may be simultaneously enabled to
write (access) the same shared variable. Our notion
of time complexity distinguishes between local and re
mote references to shared memory. We show that,
for any Nprocess mutual exclusion algorithm with
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