Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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:
Define service (within R/3)? A service is a process or group of processes that perform a exact system function and often give an application-programming interface for other pr
Disadvantages of MPI Performance is restricted by communication network between the nodes It can be harder to debug Needs more programming changes to go from seri
Write Hit Policies: Write through o Update next level on every write o Cache is always clean o A lots of traffic to next level (mostly write) Write
What is model? A universe together with an assignment of relations to relation symbol is known as a model. A model M is a tuple (U, P1, P2..Pk), where U is the universe and P
projections
What are the main data structures used in the following areas: RDBMS, Network data model and Hierarchical data model? RDBMS = Array (i.e. Array of structures) Network data m
What are the uses of Router? Router: A router is used to transfer or route data among two or more similar networks. This determines the next network point to that a data
Q. How I-O interface communicate with processor? The above illustration clearly specifies need communication between processor and I/O interface. This communication includes su
Given a four level hierarchical storage system consisting of: cache, primary storage, secondary storage, and tertiary storage. Suppose the following: programs may be executed on
explain succession planning and strategies for harvesting and ending the venture
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd