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!
Remember, the value of α is between 0 and 1. Now, let us put some values of α and compute the speed up factor for increasing values of number of processors. We get that the S(N) keeps on decreasing with increase in the value of α (i.e. number of sequential operations as shown in Figure).
No. of processors required
Figure:- Speed-up vs. Number of Processors
The graph in Figure clearly shows that there is a bottleneck caused due to sequential operations in a parallel computer. Even when the amount of sequential operations is more, after increasing the number of processors, the speed up factor S (N) degrades.
The sequential fraction i.e. α can be compared with speed up factor S(N) for a fixed value of N say 500. Figure shows a pictorial view of effect of Amdahl's law on the speed up factor.
α (Sequential Operations)
Resource Dependence The parallelism between instructions can also be affected because of the shared resources. If two instructions are occupying the same shared resource then i
If you are using C language to implement the heterogeneous linked list, what pointer type will you use? The heterogeneous linked list having different data types in its nodes a
Enumerate about the trackball A trackball is a two-dimensional positioning device, a spaceball provides six degrees of freedom. Unlike the trackball, a spaceball does not actua
In what way the protection fault handler concludes? After finishing the implementation of the fault handler, it sets the change and protection bits and clears the copy on write
Perform the following calculations assuming that all numbers are stored in 16-bit registers as 2's complement binary numbers with no overflow provision. Convert each of the numbers
Write a function that will prompt the user individually for a filename and extension and will make and return a string with the form 'filename.ext'.
Write a script that will read from a file x and y data points in the following format: x 0 y 1 x 1.3 y 2.2 x 2.2 y 6 x 3.4 y 7.4 The format of each line in the
What is a sparse matrix? Sparse Matrix A matrix in which number of zero entries is much higher than the number of non-zero entries is known as sparse matrix. The natural me
What is critical section problem? A race condition at data item occurs when many processes simultaneously update its value data consistency, needs that only one process should
Draw the ISDN address structure and explain how the addressing works? Address Structure: The ISDN address structure is demonstrated in figure. ISDN number part has a maximum
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd