Question: A snooping cache coherence protocol is implemented such as the one discussed in class, in a symmetric shared-memory multiprocessor with 3 processors sharing a bus,

A snooping cache coherence protocol is implemented such as the one discussed in class, in a symmetric shared-memory multiprocessor with 3 processors sharing a bus, Describe the steps of the coherence protocol mentioning the eventual state of the data block in the caches of each of the 3 processors for each of the instructions below. Note that the caches are direct-mapped and that each cache block only stores one word and words X and Y map to the same cache block in each cache (i.e. X and Y can’t be both in the cache at the same time). Assume that at the beginning X and Y are not in any of the caches.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

1 Processor 1 P1 writes to X P1 sends a write request to the bus Other processors P2 and P3 snoop on ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Operating System Questions!

One proposed solution for the problem of false sharing is to add a valid bit per word. This would allow the protocol to invalidate a word without removing the entire block, letting a processor keep a...

Based on Westlaw's data on the case Christoff v. Nestl USA, INC., I did the brief case. My question is, is there any need to add and adjust the content and form of the case brief, especially the...

In the following exercise, the assignment is to prepare a trial court brief. The assignment contains the memo from the supervising attorney, which includes all the available facts of the case....

Snooping-Based Cache Coherence (50 points) Consider a symmetric shared-memory multiprocessor (3 processors sharing a bus) implementing a snooping cache coherence protocol such as the one discussed in...

(i) Define clock skew and clock drift. [2 marks] (ii) A client running Cristian's Algorithm observes a local clock time of 1399157100.00s at the start of its RPC, and 1399157100.10s at the end of its...

MUST BE CORRECT ANSWERS A small software company has the following simplified cashflow, funded by shareholders' equity of 20,000 and a bank overdraft of 5000: Invoiced money received 2 months after...

10.255.255.255.ii (ii) Describe the advantages of the paired de Bruijn Graph versus the non paired version of the de Bruijn Graph. [3 marks] (d) Discuss the advantages of using soft k-means versus...

Problem 4 Cache Coherence Cache coherence concerns the views of multiple processors on a given cache block. The following table shows two processors and their read/write X[0] and X[1] in an 8-byte...

Problem 4 Cache Coherence Cache coherence concerns the views of multiple processors on a given cache block. The following table shows two processors and their read/write operations on two different...

5.23. [15] Show how the basic snooping protocol of Figure 5.6 can be changed for a write-through cache. What is the major hardware functionality that is not needed with a write-through cache compared...

Write an essay on the topic titled The Abuser

Imagine that you manage a hotel. On average, your hotel is only 80% occupied, meaning that 20% of your rooms are empty. You are thinking that you can fill these rooms by offering a discounted rate to...

Find the general solution of the differential equation ( DE ) y ' ' y = 1 c o s x , 0

A part is specified with a Nominal thickness (2-sided specification). It has a Cp = 1.1. Determine the Rejection Rate.

Fill in the blanks with the correct Spanish words 1. Al medioda, me gusta comer mi con mis amigos. 2. . es tu cumpleaos? Es maana? 3. Los estudiantes estn en el para la clase de educacin fsica. 4. ....

Identify at least 3 areas that a funding-constrained small team could implement to improve work space and team efficiency?

A temperature measurement system consists of linear elements and has an overall steady-state sensitivity of unity. The dynamics of the system are determined by the first-order transfer function of...

1) The monoatomic ideal 1mol He gas is suddenly isothermally compressed to P 2 = 3atm when P 1 = 2atm pressure and V 1 = 10 dm 3 volume. Then it is compressed adiabatically reversibly to a pressure...

Ms. Ropp's new management approach included: Group of answer choices Yelling at students and isolating them Sending students to the principal's office Ignoring inappropriate behavior and praising...

Please answer the following problems: a. Add a clean exclusive state to the basic snooping cache coherence protocol (Figure 5.6). Show the protocol in the finite state machine format used in the...

Computer Architecture Problem 3. Snooping Cache Coherence Protocols I [10 points] We are adding a Owned state to the basic MSI snooping cache protocol. More specifically: One node at most may have a...

2.15. a. Suppose a shared-memory system uses snooping cache coherence and write-back caches. Also suppose that core 0 has the variable x in its cache, and it executes the assignment x = 5. Finally...

5 . 2 5 Cache coherence concerns the views of multiple processors on a given cache block. The following data show two processors and their read / write operations on two different words of a cache...

The capabilities assumed of an attacker when public-key cryptography isused for authentication, as when studying the Needham-Schroder-Loweprotocol, are that it can pair messages, split paired...

computer architecture solve the parts without 5.25.1 use or a write burrer. 5.25 Cache coherence concerns the views of multiple processors on a given cache block. The following data show two...