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

Jsbjj, what are the output deice

what are the output deice

Directory of the distribution, I tried to run two of the applets in the exa...

I tried to run two of the applets in the examples directory of the distribution?    Ans) I tried to run two of the applets in the example directory of the distribution. I instal

What is linked list, Q. What is Linked List? A linked list is a data st...

Q. What is Linked List? A linked list is a data structure formed by zero or more nodes linked by pointers. Every node has two parts as shown in Figure below. One of them is inf

What is locality of reference, What is locality of reference? Analysis ...

What is locality of reference? Analysis of program represents that many instructions ion localized areas of the program are implemented repeatedly during some time period, and

Assignment, what is an interface and perpheral device

what is an interface and perpheral device

Computer graphics, What is intractive graphics and user dialouge in comput...

What is intractive graphics and user dialouge in computer graphics

What are the features common in most of the websites, What are the features...

What are the features common in most of the websites Following general features must be found on most web sites in one form or another (this list is by no means exhaustive):

Describe the term- macros, Describe the term- Macros A macro is a key o...

Describe the term- Macros A macro is a key or name which signifies a series of commands or key strokes. Many applications allow single nominated key or single word on a keyboar

Representation in prolog - logic programs, Representation in Prolog - Logic...

Representation in Prolog - Logic Programs: If we justimpose some additional constraints on first-order logic, so than we get to a representation language knowing as logic prog

C program, In this problem you are given a board in which some of the eleme...

In this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, suc

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