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Construct the Precedence Graph (not containing any redundant or transitive edges) B) Determine if the system above is always determinate. If not, add to  any necessary elements to make it determinate.

Construct the Precedence Graph (not containing any redundant or transitive edges) B) Determine if the system above is always determinate. If not, add to  any necessary elements to make it determinate.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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A) Construct the Precedence Graph (not containing any redundant or transitive edges)

B) Determine if the system above is always determinate. If not, add to  any necessary elements to make it determinate.

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1. Consider a system of six processes P = {P₁, ..., P6} Associated with the system are 6 memory cells M The domain and range for each process is given in the following table: Process Pi P₁ P₂ P3 PA P5 P6 Domain D (P₂) = = {M₁,..., M6} M6 M6 M3, M4 M₁, M3 M₂ M5 Range R (P) M3 MA M₁ M5 M₂ M5 In addition, you are given the following precedence relation: ⇒= {(P1, P3), (P1, P₁), (P2, P₁), (P3, P5), (P4, P5)}
Transcribed Image Text:1. Consider a system of six processes P = {P₁, ..., P6} Associated with the system are 6 memory cells M The domain and range for each process is given in the following table: Process Pi P₁ P₂ P3 PA P5 P6 Domain D (P₂) = = {M₁,..., M6} M6 M6 M3, M4 M₁, M3 M₂ M5 Range R (P) M3 MA M₁ M5 M₂ M5 In addition, you are given the following precedence relation: ⇒= {(P1, P3), (P1, P₁), (P2, P₁), (P3, P5), (P4, P5)}
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