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Apr 15, 2024 · Requirements of Mutual exclusion Algorithm: No Deadlock: Two or more site should not endlessly wait for any message that will never arrive. No Starvation: Every site who wants to execute critical section should get an opportunity to execute it in finite time.
May 20, 2024 · The requirement of mutual exclusion is that when process P1 is accessing a shared resource R1, another process should not be able to access resource R1 until process P1 has finished its operation with resource R1. Examples of such resources include files, I/O devices such as printers, and shared data structures.
The requirement of mutual exclusion was first identified and solved by Edsger W. Dijkstra in his seminal 1965 paper "Solution of a problem in concurrent programming control", [1] [2] which is credited as the first topic in the study of concurrent algorithms. [3]
Distributed mutual exclusion algorithms must deal with unpredictable message delays and incomplete knowledge of the system state. Three basic approaches for distributed mutual exclusion:
Jan 11, 2024 · To achieve program correctness, we must eliminate all of the permutations that don’t have results equivalent to serial execution. Solutions differ on: Whether execution re-tries are required. The amount of coordination / cooperation required. The underlying assumptions of the parallelism of the program (such as user vs. kernel threads).
Mutual Exclusion Explained. The problem which mutual exclusion addresses is a problem of resource sharing: how can a software system control multiple processes' access to a shared resource, when each process needs exclusive control of that resource while doing its work?
Token-Based Approaches to Mutual Exclusion Simple token ring: send token clockwise (CW) around ring • Problem: potentially long sync delays (especially in low load)
