$1.$ Write C program and parallelize it using OpenMP that compute the estimation of pi as

described in lecture $11.$ Time the parallel code and run it using $1,2,4,8$ threads and

report execution time, and speedup $=$ Tserial$/$Tparallel$,$ and efficiency $=$

speedup$/$#threads.

$2.$ Answer to the following questions:

a$.$ Tell what machine you ran this on$?$

b$.$ Create a table with your speed up results.

c$.$ Draw a graph of the speedup. The X axis will be the number of threads.

The Y axis will be the speedup.

d$.$ What patterns are you seeing in the speeds and why do you think it is

behaving this way?

e$.$ Create a table with your efficiency results.

f$.$ Draw a graph of the efficiency. The X axis will be the number of

threads. The Y axis will be the efficiency.

g$.$ What patterns are you seeing in efficiency and why do you think it is

behaving this way?