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 are set up time and hold time constraints, What are set up time and ho...

What are set up time and hold time constraints? What do they mean? Which one is crucial for establishing maximum clock frequency of a circuit? Set up time is the amount of time

Explain about the postpurchase interaction briefly, Explain about the postp...

Explain about the postpurchase interaction briefly. Postpurchase Interaction: Customer support and service: The considerations at such can be explained by the followin

What is the role of mar and mdr, What is the role of MAR and MDR? The ...

What is the role of MAR and MDR? The MAR (memory address register) is used to hold the address of the location to or from which data are to be transferred and the MDR(memory d

Kirchoff''s voltage law , Kirc hoff's Voltage Law   The sum ...

Kirc hoff's Voltage Law   The sum of all the voltage drops around a closed circuit loop will add to zero  V1+(-V2)+(-V3)+(-V4)= 0

Explain operation of time multiplexed space switching, With a neat diagram ...

With a neat diagram explain operation of time multiplexed space switching. Time division switches, an inlet or an outlet corresponded to a particular subscriber line with one s

Robotics artificial intelligence, what is robot?explain different types of ...

what is robot?explain different types of robots with respect to joints.

Fundamental building block of main memory, Q. Fundamental building block of...

Q. Fundamental building block of main memory? The fundamental building block of main memory remains DRAM chip as it has for decades. Till recently there had been no important c

Why 256 x 8 memory chips is require to design 2k x 8 memory, A number of 25...

A number of 256 x 8 bit memory chips are available. To design a memory organization  of 2 K x 8 memory. Identify the requirements of 256 x 8 memory chips and explain the details.

How many types of stages include in process of data mining, How many types ...

How many types of stages include in process of data mining? The process of data mining comprised three stages as given below: a) The initial exploration b) Model buildin

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