Amdahls law - calculate speed up performance, Computer Engineering

Assignment Help:

To calculate speed up performance various laws have been developed. These laws are discussed here.

 Amdahl's Law

Remember, the speed up factor helps us in knowing the relative gain achieved in shifting the implementation of a task from sequential computer to parallel computer and the performance does not enhance linearly with the increase in number of processors. Due to the above reason of saturation in 1967 Amdahl's law was derived. Amdahl's law states that a program have two types of operations i.e. complete sequential operations which should be done sequentially and complete parallel operations which can be implemented on multiple processors. The statement of Amdahl's law can be described with the help of an example.

Let us take a problem say P which has to be solved using a parallel computer. According to Amdahl's law, there are generally two types of operations. Thus, the problem will have some sequential operations and some parallel operations. We already know that it needs T (1) amount of time to implement a problem using a sequential algorithm and sequential machine. The time to compute the sequential operation is a fraction α (alpha) (α ≤ 1) of the total implementation time i.e. T (1) and the time to compute the parallel operations is (1- α). Thus, S (N) can be calculated as under:

512_Amdahls Law - Calculate speed up performance.png


Related Discussions:- Amdahls law - calculate speed up performance

What is delayed branching, What is delayed branching? A method called d...

What is delayed branching? A method called delayed branching can minimize the penalty incurred as a result of conditional branch instructions. The idea is easy. The instruction

Accessing the internet, Before we can use Internet, we have to gain access ...

Before we can use Internet, we have to gain access to it. This access is achieved in one of numerous ways. Above all, the Internet is a collection of networks which are connected t

What is segment - assembler directives, What is SEGMENT - Assembler directi...

What is SEGMENT - Assembler directives SEGMENT:  This directive defines to assembler the start of a segment with name segment-name.  Segment name must be unique and follows the

Write a c++ program to explain three specific classes, Make a base class ca...

Make a base class called figure that store the dimensions of several geometrical objects and compute their areas. Explain a function set_dim( ),a standard member  function and show

Data dependency, Data Dependency:   It refers to the state in which two or ...

Data Dependency:   It refers to the state in which two or more instructions split same data. The instructions in a program can be given based on the relationship of data dependency

Show the classification of printers, Q. Show the Classification of Printers...

Q. Show the Classification of Printers? Printers can be classified on following bases: a) Impact: Impact printers print by impact of hammers on ribbon (for example Dot-Matri

Write the program to use arrays, In class SlotCollection, remove the fields...

In class SlotCollection, remove the fields slot1, slot2, slot3 and slot4 and replace them by an array of slots. Modify the rest of the program to work using this array. There is

What is assembler, What is Assembler An assembler is a program which ta...

What is Assembler An assembler is a program which takes as input a symbolic language program and produces output as its binary machine language equivalent. The input is known a

What are the benefits of web-based spreadsheets, What are the Benefits of W...

What are the Benefits of Web-Based Spreadsheets? The spreadsheets can be accessed from any Internet-connected computer, not just the computer originally formed the spreadsh

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd