Consider the following code segments running on two processors P1 and P2. Assume A, and B, are
Question:
Consider the following code segments running on two processors P1 and P2. Assume A, and B, are initially 0. Explain how an optimizing compiler might make it impossible for B to be ever set to 2 in a sequentially consistent execution model.
Transcribed Image Text:
P1: A=1; A=2; While (B=0); P2: B=1; While (A 1); B= 2;
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 100% (1 review)
Answered By
HARSH RANJAN
Taken classes at college to graduates, Also worked as an expert to a freelancer online question-solving portal for more than 8 months with an average rating greater than 4.2 out of 5.
5.00+
1+ Reviews
10+ Question Solved
Related Book For
Computer Architecture A Quantitative Approach
ISBN: 9780128119051
6th Edition
Authors: John L. Hennessy, David A. Patterson
Question Posted:
Students also viewed these Computer science questions
-
Consider the following code segments running on two processors P1 and P2. Assume A and B are initially 0. a. If the processors adhere to sequential consistency (SC) consistency model. What are the...
-
Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...
-
do the following,..... Write program that reads a person's first and last names, separated by a space. Then the program outputs last name, comma, first name. Create program that takes in user input...
-
Independent Challenge 1 You are the operations manager for the Chicago Arts Alliance. Each year the group revisits the number and types of activities they support to better manage their budgets. For...
-
On the generalized enthalpy departure chart, the normalized enthalpy departure values seem to approach zero as the reduced pressure PR approaches zero. How do you explain this behavior?
-
Car Crash Investigation Background information: A collision occurred involving two vehicles on Route 28 N. The speed limit in this zone is 45 mph. A 2011 Honda Odyssey minivan was stopped at the...
-
Compare and contrast the ethical approaches of its legal, therefore, its ok and the ends justify the means. Are there similarities? Are there differences?
-
Willow Brook National Bank operates a drive-up teller window that allows customers to complete bank transactions without getting out of their cars. On weekday mornings, arrivals to the drive-up...
-
Let ACR be closed and BCR" be compact. Show that the sum set C = A + B = {cR": = a+b for some A, B} is closed. Is it necessarily true that C is compact?
-
You and a classmate are assigned a project on which you will receive one combined grade. You each want to receive a good grade, but you also want to avoid hard work. In particular, here is the...
-
In a processor implementing a SC consistency model, the data cache is augmented with a data prefetch unit. Will that alter the SC implementation execution results? Why or why not?
-
In a read miss, a cache might overwrite a line in the shared (S) state without notifying the directory that owns the corresponding memory block. Alternatively, it will notify the directory so that it...
-
Fasten a pair of foam cups together at their wide ends and roll them along a pair of meter sticks that simulate railroad tracks. Note how they self-correct whenever their path departs from the...
-
The Ogallala Aquifer is a large underground pool of freshwater beneath several states in the western United States. Any farmer with land above the aquifer can currently pump water out of it. Which of...
-
According to Jim Myers, president of the American Chamber of Commerce in South Africa, nearly 50% of the chambers members are Fortune 500 companies, and that over 90% operate beyond South Africas...
-
Many Americans regularly drive their own cars to work rather than use public transportation or form a carpool. 1) How do you know that each person in a single-passenger vehicle during rush hour is...
-
The game show Golden Balls aired on ITV from June 2007 to December 2009. In the final round, the two remaining contestants play for an amount of money W > 0.1. The last round works as follows: each...
-
A 1.2 kg rock is found on the moon. What is its weight on the moon where the acceleration due to gravity is 1.62 m/s 2 ?
-
Union organizers at a hospital wanted to distribute leaflets to potential union members, but hospital rules prohibited leafletting in areas of patient care, hallways, cafeterias, and any areas open...
-
Briefly describe the following types of group life insurance plans: a. Group term life insurance b. Group accidental death and dismemberment insurance (AD&D) c. Group universal life insurance d....
-
The UNIX operating system differentiates between block-oriented and character oriented devices. Give an example of each, explain the differences between them, and explain how the I/O process differs...
-
Consider the interface between a computer and a printer. For a typical printout, it is clearly impractical to send output data to the printer one byte or one word at a time (especially over a...
-
To use a computer for multimedia (moving video and sound), it is important to maximize the efficiency of the I/O. Assume that the blocks of a movie are stored consecutively on a CD-ROM. Describe the...
-
3. More types of variables and data Independent and Dependent Variables Many statistical experiments explore relationships between variables. In some cases, one variable (known as independent)...
-
You need to compare the performance of two companies, Ex - Co and Wye - Co . Ex - Co had $ 5 5 0 , 0 0 0 in gross revenue for the reporting period and COGS of $ 1 1 7 , 0 0 0 . The cost of warranty...
-
General plc has recently implemented a system of standard costing. It now has the actual results for the first month of the system's operation to compare with its standard figures. Standard costs:...
Study smarter with the SolutionInn App