COMP90025 Parallel and Multicore Computing
COMP90025 Parallel and Multicore Computing
Project 1B – Mandelbrot Set
Aaron Harwood
School of Computing and Information Systems
The University of Melbourne
2018 Semester II
Aaron Harwood (School of Computing and Information Systems The University of Melbourne)COMP90025 Parallel and Multicore Computing 2018 Semester II 1 / 6
Summary
The first project is group work and is divided into small parts, this is
Part B.
A sequential algorithm for computing the number of points in the
Mandelbrot Set has been provided on LMS. The program reads an
arbitrary number of regions from the command line and outputs, for
each region, the number of points that lie within the set.
Aaron Harwood (School of Computing and Information Systems The University of Melbourne)COMP90025 Parallel and Multicore Computing 2018 Semester II 2 / 6
Example
$./mandelbrot -2.0 1.0 -1.0 1.0 100 10000 -1 1.0 0.0 1.0 100 10000
2538
3509
The general format is:
madelbrot real_lower real_upper img_lower img_upper num maxiter
Aaron Harwood (School of Computing and Information Systems The University of Melbourne)COMP90025 Parallel and Multicore Computing 2018 Semester II 3 / 6
Tasks
You are required to write an MPI+OpenMP program that computes
and outputs, in the same way, the number of points in the regions of
the Mandelbrot Set as given on the command line.
You should aim to have your program run as fast as possible. In doing
so, you may alter the calculations of the program, so long as the final
output is correct.
I The Mandelbrot Set admits some mathematical simplifications that you
can readily find online, e.g. see the Optimizations section here:
https://en.wikipedia.org/wiki/Mandelbrot_set.
Write at most 1000 words that outlines how you achieved
parallelism/high performance. Include tables and/or charts of your
own measurements that support your discussion.
Aaron Harwood (School of Computing and Information Systems The University of Melbourne)COMP90025 Parallel and Multicore Computing 2018 Semester II 4 / 6
https://en.wikipedia.org/wiki/Mandelbrot_set
Assessment
Project 1 B is worth 13% of your total assessment. It is group work.
Assessment of the report (5/13) is based on the level of details and
presentation.
Assessment of the program (8/13) is based on correctness and
performance. Incorrect programs (i.e. that give incorrect outputs or
that fail to compile/run) will attract few if any marks. The top 3
fastest running programs, when given a mystery work load (you will
not be told the work load in advance), will be given a bonus mark; i.e.
the maximum mark for this project part is 14/13.
Low end tie-breakers in the top 3 will not receive bonus marks.
Aaron Harwood (School of Computing and Information Systems The University of Melbourne)COMP90025 Parallel and Multicore Computing 2018 Semester II 5 / 6
Submission
Submit a PDF of your report (use PDF only, no other format will be
assed) via LMS on or before Saturday 15th September. As well you
will need to submit your program via LMS. Instructions for doing this
will be given closer to the deadline.
Use 10pt font, single line spacing, 1 inch margins all around and
double column. Use appropriate headings and clearly label and refer to
tables/figures. Clearly put your names and login names at the top of
the report.
Aaron Harwood (School of Computing and Information Systems The University of Melbourne)COMP90025 Parallel and Multicore Computing 2018 Semester II 6 / 6