Suppose I have two microprocessors (uP1 and uP2). I have a program that I used to run uP1, which has 2 cores and an IPC of 0.8 per core. uP1 has a clock of 2 GHz. I would like to move this program to uP2 as it is a low-power processor. uP2 has 3 cores, and IPC of 1.2 per core, and can run up to 2.5 GHz. However, its clock frequency is adjustable, and I want to run it at the lowest clock frequency possible so that I save power as much as possible. If 60% of my program is fully parallelizable, what is the clock frequency I have to run uP2 so that it matches the performance (hence run-time) of uP1 when this particular program is run on both uPs?
Answers
The clock frequency at which uP2 has to run is 550 MHz so that it matches the performance (run-time) of uP1 when this particular program is run on both uPs.
Let's assume that the execution time of the program on uP1 is T1.T1 = Number of Instructions * CPI * Clock cycle time of uP1
We are supposed to run the same program on uP2.
Let's assume that the clock frequency of uP2 is f2. Since uP2 has 3 cores, we can take advantage of parallelism, and the total number of instructions executed will be divided equally among all the cores.
So, the execution time of the program on uP2 is:
T2 = Number of instructions * CPI * Clock cycle time of uP2 / (3 * IPC of uP2)
The maximum frequency of uP2 is 2.5 GHz. Since the program is fully parallelizable up to 60%, we can reduce the clock frequency to match the performance of uP1.
So,T1 = T2 => Number of Instructions * CPI * Clock cycle time of uP1 = Number of instructions * CPI * Clock cycle time of uP2 / (3 * IPC of uP2)
Clock cycle time of uP2 = Clock cycle time of uP1 * IPC of uP1 / (3 * IPC of uP2) = 2.5 GHz * 0.8 / (3 * 1.2) = 0.55 GHz = 550 MHz
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Related Questions
Use iterators to add up all of the numbers in a vector.
#include
using namespace std;
double accumulate(const vector& v)
{
(...)
}
Answers
This code defines a function `accumulate` that takes a const reference to a vector of doubles and uses an iterator to loop through each element in the vector, adding their values to the variable `sum`.
In this code, we're using a for loop that iterates over the vector using iterators. The iterator variable "it" is initialized to v.begin() which points to the first element in the vector.
Once the loop is done iterating over all the elements in the vector, we simply return the total sum. Note that we've also specified the template parameter of the vector as "double" since we're adding up numbers, but this could be changed to any other type of element depending on the requirements of your specific use case.
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StayWell provides maintenance services across the properties they manage. The SERVICE_CATEGORY table in their database contains a _____.a. property IDb. location numberc. description of the categoryd. location name
Answers
The SERVICE_CATEGORY table contains a description of the category. In the StayWell database, the SERVICE_CATEGORY table likely contains information about the various types or categories of maintenance services that the organization provides to the properties they manage.
Each row in the table represents a single service category, and the table likely contains columns for various attributes of each category, such as the category's description and any associated costs or fees.
To differentiate between the different types of maintenance services offered, a description of the category is used. This description is a text-based description of the type of service that is provided, such as "Plumbing Repair" or "Electrical Maintenance". The description serves as the primary identifier for each service category in the table.
The use of a service category description is important for various database operations, such as querying and reporting on the types of services provided. It allows the database system to group similar services together and provide information about the frequency and costs of each service category across different properties.
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Which development in transportation led to the concept of mass tourism
Answers
Answer:improvements in air transport
Explanation:
Need the answer ASAP plz !!!!!
Answers
Which of the following tasks best shows an example where the searching and sorting techniques of big data may be involved?
There are TWO correct answers.
Group of answer choices
Creating a seating chart for a classroom based on an alphabetized list of student Names
Tallying how many pencils and pens you use throughout a school year so you know how many to buy for the start of the next school year to insure you will have enough
Recording the amount of time it takes a student to travel from one class to another class in order to find the average
Keeping track of all employees’ email use to see how many personal or work-related emails are sent during work time to check for productivity
Answers
The following task best show searching and sorting techniques of big data.
Creating a seating chart for a classroom based on an alphabetized list of student Names.Keeping track of all employees’ email use to see how many personal or work-related emails are sent during work time to check for productivity.What is big data?Big data refer large or hard to manage volume of data that cover day to day businesses. It is analysed to improve business activities.
What is searching and sorting techniques?Searching and sorting techniques refer to the process of looking and arranging data in the data base.
Therefore, The following task best show searching and sorting techniques of big data.
Creating a seating chart for a classroom based on an alphabetized list of student Names.Keeping track of all employees’ email use to see how many personal or work-related emails are sent during work time to check for productivity.For more details on Big data, check the link below.
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Based on the question above, the correct answers are;
Creating a seating chart for a classroom based on an alphabetized list of student NamesKeeping track of all employees’ email use to see how many personal or work-related emails are sent during work time to check for productivitySearching and sorting techniques of big data Sorting refers to arranging data in a particular formatTypes of Sorting TechniquesBubble Sort.Selection Sort.Merge Sort.Insertion Sort.Quick SortIn conclusion, we can conclude that the correct answers are the ones specified above.
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11111110110001001100010110111010start text, 1111111, end text, start text, 0, end text, start text, 110, end text, start text, 0, end text, start text, 0, end text, start text, 10, end text, start text, 0, end text, start text, 110, end text, start text, 0, end text, start text, 0, end text, start text, 10110111010, end text
How many characters are encoded in that binary data?
Answers
Answer:
32 bits / 8 bits per character = 4 characters
Explanation:
This binary data contains 32 bits, which can be divided into groups of 8 bits to represent individual characters.
There are 32 students standing in a classroom. Two different algorithms are given for finding the average height of the students.
Algorithm A
Step 1: All students stand.
Step 2: A randomly selected student writes his or her height on a card and is seated.
Step 3: A randomly selected standing student adds his or her height to the value on the card, records the new value on the card, and is seated. The previous value on the card is erased.
Step 4: Repeat step 3 until no students remain standing.
Step 5: The sum on the card is divided by 32. The result is given to the teacher.
Algorithm B
Step 1: All students stand.
Step 2: Each student is given a card. Each student writes his or her height on the card.
Step 3: Standing students form random pairs at the same time. Each pair adds the numbers written on their cards and writes the result on one student’s card; the other student is seated. The previous value on the card is erased.
Step 4: Repeat step 3 until one student remains standing.
Step 5: The sum on the last student’s card is divided by 32. The result is given to the teacher.
Which of the following statements is true?
Answers
The true statement about the algorithm is C. Both Algorithm A and Algorithm B always calculate the correct average.
What is an algorithm?An algorithm is a finite sequence of rigorous instructions used to solve a class of specific problems or to perform a computation in mathematics and computer science. Algorithms serve as specifications for calculating and processing data.
In a classroom, 32 students are standing. For determining the average height of the students, two different algorithms are provided. It is a procedure for solving a problem or performing a computation is referred to as an algorithm as they are a precise set of instructions that perform specified actions in either hardware or software-based routines.
An algorithm is a step-by-step procedure that defines a set of instructions that must be followed in a specific order in order to produce the desired result. Because algorithms are generally developed independently of underlying languages, an algorithm can be implemented in more than one programming language.
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Complete options
(A) Algorithm A always calculates the correct average, but Algorithm B does not.
(B) Algorithm B always calculates the correct average, but Algorithm A does not.
(C) Both Algorithm A and Algorithm B always calculate the correct average.
(D) Neither Algorithm A nor Algorithm B calculates the correct average.
jolie wants to see a list of, and manage, apps on her android phone. where can she go on her phone to do this?
Answers
Jolie wants to see a list of, and manage, apps on her android phone. She can go on her phone to do this in Settings. The correct option is c.
What are applications in phones?
An application, or simply "app," is software that gathers particular functionality into one easily accessible package.
Both the Android and iOS app stores have millions of apps available that provide services (or verticals). from any location. Swipe your screen upward from the bottom to the top. Tap All Apps if it appears. Click on the app you want to launch.
Therefore, the correct option is c, Settings.
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The question is incomplete. Your most probably complete question is given below:
App drawer. The dock. Settings. File manager
Explain the expression below
volume = 3.14 * (radius ** 2) * height
Answers
Answer:
Explanation:
Cylinder base area:
A = π·R²
Cylinder volume:
V = π·R²·h
π = 3.14
R - Cylinder base radius
h - Cylinder height
Create a flowchart that assigns a counselor to a student. You need to ask a student for the first letter of his/her last name. Assign a counselor based on the following criteria:
• A through Mare assigned to Ms. Jones
• N through Z are assigned to Mr. Sanchez
Answers
Answer:
See attachment for flowchart
Explanation:
The explanation is as follows:
Start
Input first_letter (of student's name)
If first_letter is any of N through Z
Assign student to Mr. Sanchez
Else
Assign student to Ms. Jones
Print Counselor
Stop
A program executes 15 billion instructions. You are running this program in two systems: System A: has a processor with 3 GHz and an average CPI of 2.0 System B: has an average CPI 1.2 and execution time is 1.5 X more than system A. What is the clock speed of processor in system B.
Answers
Answer:
Clock speed of B = 7.5 GHz
Given:
Processor speed of A = 3 GHz
Average CPI of A = 2
Average CPI of B = 1.2
Execution time of B is 1.5 times then A
Find:
Clock speed of B
Computation:
Execution time = CPI × Processor speed × Instructions
Execution time of B = 1.5[Execution time of A]
1.2 × Clock speed of B[15 billion] = 1.5[2 × 3][15 billion]
Clock speed of B = 7.5 GHz
here is a statement to compare communication and signalling in railway technology, "We can run trains without signalling but we cannot run trains without telecommunication (communication)". Do you agree with the statement above? Elaborate your answer with full explanation.
Answers
The statement suggests that while trains can operate without signalling systems, they cannot function without telecommunication (communication). However, the accuracy of this statement depends on the context and the specific requirements of railway operations.
In the context of railway technology, signalling systems play a crucial role in ensuring safe and efficient train operations. Signalling systems provide visual, audible, or electronic indications to train operators, informing them of track conditions, speed limits, and potential hazards. These systems help maintain proper train spacing, prevent collisions, and enable efficient train movements.
On the other hand, telecommunication systems enable communication between various entities involved in railway operations, including train operators, control centers, maintenance teams, and dispatchers. Communication systems allow for real-time information exchange, coordination of train movements, emergency response, and overall management of railway operations. They facilitate the transfer of important data such as train schedules, maintenance updates, and incident reports.
While signalling systems are essential for ensuring safe train operations, the statement highlights the significance of telecommunication in enabling effective coordination and decision-making. Without telecommunication, it would be challenging to manage train movements, respond to emergencies, and communicate critical information.
In summary, both signalling and telecommunication systems are integral to railway technology. Signalling systems ensure safety by providing necessary instructions to train operators, while telecommunication systems facilitate efficient coordination and communication among various stakeholders. Therefore, while trains can potentially operate without signalling systems, the absence of telecommunication would significantly hinder railway operations and compromise safety and efficiency.
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How is video compression accomplished?
Video compression works by making the pixel size smaller.
Video compression works by removing the sound.
Video compression works by smoothing the pixels.
Video compression works by removing unnecessary parts of frames
Answers
Answer:
A. Video compression works by making the pixel size smaller.
Explanation:
E2020!
the series of instructions that tells the hardware how to perform
Answers
Answer:
A Program
Explanation:
Hardwares may be referred to as physical components of a computer system or machine. Hardware components may include processing unit of a machine or equipment. These Hardwares work with according to certain embedded instruction in other to function properly and according to the designers specification. These series of instruction written in other to control the function of the hardware is called the PROGRAM. Hence, the series of instruction which controls the function of the hardware is Called the PROGRAM.
Which of the following shows the assignment of a string to a variable? Select 3 options.
answer = input("How old are you? ")
answer = "23"
answer = '23'
answer = 23
answer = (23)
Answers
Answer:
23, (23)
Explanation:
Answer:
⬇️
Explanation:
answer = "23"
answer = input("How old are you? ")
answer = '23'
correct on edg. 2021
What are some legal issues that can arise from the use of social media?
Answers
Answer:
Some of the particular legal concerns for businesses' social media are the right to privacy, defamation, advertising law, intellectual property (IP) law, etc. As a brand, you have to be careful while sharing any content on social media as sometimes it may infringe on a copyright, a trademark, or other IP rights
Explanation:
hope this helps
The following code will not compile. Which of the options below would allow the code to compile and run as intended?
if (x >= -10 and <= 10):
print("In range")
Answers
Answer:
Follows are the code to this question:
x=int(input())#use input method with int that takes integer value from user-end
if (x >= -10 and x<=10):#defining if block that checks x in between -10 to 10
print("In range")#print message
Output:
6
In range
Explanation:
In this code, the choices were missing that's why the solution to this question can be defined as follows:
In this, x variable using the input method with the int, which takes integer value from the user-end. In the next step, the if block is used, that checks x value lies on between the -10 to 10, to check this condition it used the and logical operator, that run the code when both conditions are true, and at last, it prints the message "In range".
what is the output of the following code if the value of score is 100? assume variables score and grade has been declared as int and char, respectively.
Answers
Without the actual code provided, it is not possible to determine the specific output. The output would depend on the logic and conditions defined in the code. However, if there is a condition that assigns a grade 'A' for a score of 100, then the expected output could be the grade 'A'.
What would be the output of the code if the value of score is 100?Without the actual code provided, it is difficult to determine the output accurately.
However, based on the information given, the output would depend on the conditions and logic statements present in the code.
The code may include conditional statements that assign a grade based on the value of the score. For example, if the score is 100, the code may assign the grade 'A'.
The exact output would be determined by the specific implementation of the code, including any conditional statements or logic used to assign the grade based on the score value.
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in this lab, your task is to: use the systemctl command to make rescue.target the default boot target. use systemctl get-default to verify that the current default target is rescue.target.
Answers
In this lab, your main answer is to use the "systemctl" command to make "rescue .target" the default boot target. Then, you can use the "systemctl get-default" command to verify that the current default target is "rescue .target".
Open the terminal or command prompt. Type the following command and press Enter: "systemctl set-default rescue .target" This command sets the "rescue.target" as the default boot target.To verify the change, type the command "systemctl get-default" and press Enter.
This command displays the current default boot target. Make sure it is showing "rescue.target".By following these steps, you will successfully use the "systemctl" command to set "rescue.target" as the default boot target and verify the change using the "systemctl get-default" command.
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To print your worksheet on a piece of paper larger than 8 1/2×11 inches which EXCEL tab would you use : _________
Answers
Choose Page Setup from the Page Layout tab. Choose the Adapt to checkbox on the Page tab, then decide by what percentage you want the sheet to be smaller or larger.
If your worksheet contains numerous columns, you can utilise the Scale to Fit options to make it smaller so that it would print more comfortably.
Take these actions: On the ribbon, click the Page Layout tab.
Choose 1 page in the Width box and Automatic in the Height box in the Scale to Fit group. Now the columns will fill one page, but the rows may fill more than one page. It's important to comprehend a few concepts related to resizing a worksheet to suit a printed page.
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Gina is a database user and her supervisor has asked her to generate a report from the structured database. Gina does not know how to write SQL commands and no forms have been created. Which of the following would be her BEST option to generate the report?
A. Direct access
B. Programmatic access
C. Query builder
D. User interface access
Answers
Answer: C. Query builder
Explanation:
Based on the information given in the question, since Gina does not know how to write SQL commands and no forms have been created, the best option to generate the report is a query builder.
With the Query Builder, Gina can be able to search and also select and filter the database objects, while also creating relationships between the objects, and save queries despite not having any SQL knowledge.
"How can traditional (waterfall) and agile methods be combined
for successful management of projects?
Answers
Traditional (waterfall) and agile methods can be combined for successful project management through a hybrid approach. This approach aims to leverage the strengths of both methodologies to achieve better outcomes.
Here are some ways to combine them:
1. Project Planning: Begin with a traditional waterfall approach to establish a clear project scope, objectives, and requirements. This phase allows for thorough planning, documentation, and stakeholder engagement.
2. Iterative Development: Adopt an agile approach for the development phase. Break the project into smaller iterations or sprints, each delivering a working product increment. This allows for flexibility, continuous feedback, and faster value delivery.
3. Communication and Collaboration: Agile methods emphasize frequent communication and collaboration. Encourage cross-functional teams to work closely, exchange ideas, and share progress. This ensures effective coordination and alignment between team members.
4. Risk Management: Traditional methods typically focus on risk identification and mitigation at the beginning of the project. In a hybrid approach, continue to assess risks throughout the project using agile methods. This enables proactive risk management and adjustments as needed.
5. Change Management: Agile methods are known for accommodating change. Incorporate change management techniques, such as backlog refinement and prioritization, into the hybrid approach. This ensures the project remains adaptable to changing requirements.
6. Monitoring and Reporting: Utilize traditional methods for tracking progress against the project plan and reporting to stakeholders. At the same time, leverage agile methods to monitor team performance and adjust the project trajectory as necessary.
By combining traditional (waterfall) and agile methods, project managers can achieve a balance between structure and flexibility, resulting in more successful project outcomes.
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Please help urgently i will give 61 points
Answers
Web browsers can be used to access the internet.
What is a short history of web browsers?When we talk of the web browsers we are talking about the kind of applications that we can use to access pages on the web. Today there are so many of such applications that we can be able to use search for pages on the web.
The initial attempts at web browsers were the hyperlinked applications that were produced by Tim Berners-Lee during the mid and late 1980s and 1990.
Today, we have a lot of the web browsers in use like the Chrome, Safari, Internet Explorer (IE), Firefox, and Opera.
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What does ISO control?
how long the light will be able to enter the camera
how sensitive the camera sensor is to incoming light
the size of the circular hole in the lens that lets in light
“depth of field”
Answers
The higher the ISO rating, the greater the film's ability to capture images taken in low light. ... For digital photography, ISO refers to the sensitivity—the signal gain—of the camera's sensor. The ISO setting is one of three elements used to control exposure; the other two are f/stop and shutter speed.
Answer:
y
Explanation:
What can queries provide that viewing a table in Datasheet view cannot provide?
Answers
Answer:
D) data from more than one table
Explanation:
Just took it!
________ is the process of obtaining, cleaning, organizing, relating, and cataloging source data. Data acquisition Data entry Data mining Data encryption
Answers
Answer:
_______ is the process of obtaining, cleaning, organizing, relating, and cataloging source data. A Data acquisition B Data mining C Data encryption D Data scrubbing E Data entry
✓ A Data Acquisition
Explanation:
Forensic labs must provide evidence that they are independent and partial for the clients they do work for. true or false
Answers
True. The statement, "Forensic labs must provide evidence that they are independent and partial for the clients they do work for".
What is a forensic laboratory? A forensic laboratory is a scientific laboratory that is used to conduct forensic analysis, examinations, and experiments. It is where forensic experts work, collect and analyze forensic data, and use forensic tools and technology to assist law enforcement officials in solving crimes.
Forensic lab personnel must be completely impartial and must never have any financial or personal stake in the investigation's outcome. This independence ensures that forensic evidence is fair and unbiased in legal proceedings. Thus, forensic labs must provide evidence that they are independent and partial for the clients they do work for, which makes the statement true.
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Jennifer turns on her laptop and hears a series of beeps. What do they probably indicate?.
Answers
Answer:
Hey, it's probably a bad Ram or a CPU/GPU problem.
Traditional BI systems use a large volume of static data that has been extracted, cleansed, and loaded into a data warehouse to produce reports and analyses. Sate True or False.
Answers
The statement is true. Traditional Business Intelligence (BI) systems typically rely on a large volume of static data that has been extracted, cleansed, and loaded into a data warehouse to generate reports and analyses.
Traditional BI systems follow a structured approach where data is extracted from various sources, such as transactional databases, spreadsheets, or external systems. This data is then transformed and cleansed to ensure its accuracy and consistency. The cleaned data is loaded into a central data warehouse, where it is organized and stored for analysis.
Once the data is in the data warehouse, it becomes static, meaning that it is not continuously updated in real-time. Reports and analyses are generated from this static data, providing insights into historical trends, patterns, and performance metrics. Users can run predefined queries and reports against the data warehouse to retrieve information relevant to their business needs.
While traditional BI systems have been effective in providing structured and historical data analysis, they may lack real-time or near-real-time insights. With the emergence of technologies like real-time analytics and streaming data processing, organizations are increasingly adopting more dynamic and agile approaches to BI, allowing for quicker decision-making based on up-to-date information.
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During the implementation of a new checkout system, target initially replaced only half of the old check out stations in each store while leaving the other half the same so bugs could be worked out and training could be completed on the new stations. After testing and training, target phased out the remaining old stations. This approach is called _________ conversion.
Answers
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