Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002...
-
Upload
pamela-anna-mosley -
Category
Documents
-
view
219 -
download
0
Transcript of Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002...
![Page 1: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/1.jpg)
Fractal Element Antenna Genetic Optimization Using a
PC Cluster
ACES ProceedingsMarch 21, 2002Monterey, CA
![Page 2: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/2.jpg)
03/21/2002 ACES Conference Proceeding
Fractal Development
Boston University:– Nuno Alves– William Crespo– Felipe Fernandes– Fabio Santana
Fractal Antenna Systems, INC.– Dr. Nathan Cohen and Dr. Robert Hohlfeld
![Page 3: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/3.jpg)
03/21/2002 ACES Conference Proceeding
Our Goal
Decrease time of antenna designUsing:- Fractal Antennas GA- Several inexpensive computers
![Page 4: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/4.jpg)
03/21/2002 ACES Conference Proceeding
Antenna Design Algorithms
Genetic Algorithm (G.A.)
Numerical Electromagnetic Computation (N.E.C.)• EMAG calculation• Bottleneck of system
Random PopulationFitness Evaluation
Select Parents
New Population
Crossover (Mating)
Elite Population
![Page 5: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/5.jpg)
03/21/2002 ACES Conference Proceeding
Antenna Optimization
Problem:– Computationally Intensive– Time Consuming
Genetic Algorithms– Intrinsic Parallelism
![Page 6: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/6.jpg)
03/21/2002 ACES Conference Proceeding
Current Solutions…
Use of :– High End PC
• OR– Supercomputer
Cost of each:–$2000~ Up
•OR–$250,000~Up
![Page 7: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/7.jpg)
03/21/2002 ACES Conference Proceeding
Approaching the Problem
PC cluster implementation:– Hardware:
• 1 central node
• <100 slave nodes
– Software:• Linux (open source and
free distribution)
• GA, NEC and FOM
• Error checking software
![Page 8: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/8.jpg)
03/21/2002 ACES Conference Proceeding
Project Diagram:Preliminary Diagram
IP : 1 0 .0 .0 .10
1 0 .0 .0 .20 1 0 .0 .0 .301 0 .0 .0 .40
1 0 .0 .0 .50 1 0 .0 .0 .60
Node 11 .2G hz
1 2 8M B R A M2 0 G B H D
Node 21 .2G hz
1 2 8M B R A M2 0 G B H D
Node 3 1 .2 G hz1 2 8M B R A M 2 0 G B H D
Node 41 .2G hz
1 2 8M B R A M2 0 G B H D
Node 51 .2G hz
1 2 8M B R A M2 0 G B H D
A R K S O H O1 0 /10 0 M B /sec
Ethernet Switch1 6 P o r ts
Server/Host Node 0D u a l P ro cessor (2 ) - P III 1 G hz
2 5 6 M B R A M & 3 0 G B H D
![Page 9: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/9.jpg)
03/21/2002 ACES Conference Proceeding
![Page 10: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/10.jpg)
03/21/2002 ACES Conference Proceeding
![Page 11: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/11.jpg)
03/21/2002 ACES Conference Proceeding
ResultsNEC RUN TIME
0.00
1000.00
2000.00
3000.00
4000.00
5000.00
6000.00
7000.00
8000.00
9000.00
1 2 3 4 5 6
Nodes
Tim
e(S
)
Series1
![Page 12: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/12.jpg)
03/21/2002 ACES Conference Proceeding
ResultsSpeed Up Factor
0
1
2
3
4
5
6
1 2 3 4 5 6
# of Nodes
Fa
cto
r
![Page 13: Fractal Element Antenna Genetic Optimization Using a PC Cluster ACES Proceedings March 21, 2002 Monterey, CA.](https://reader035.fdocuments.us/reader035/viewer/2022062314/56649ce05503460f949aa30a/html5/thumbnails/13.jpg)
03/21/2002 ACES Conference Proceeding
Conclusion
The use of PC Clusters is a viable and inexpensive alternative for Antenna Simulations