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Running SuperNEC on the 22 Processor IBM-Sp2 at Southampton University

Running SuperNEC on the 22 Processor IBM-Sp2 at Southampton University
Running SuperNEC on the 22 Processor IBM-Sp2 at Southampton University
SuperNEC (SNEC) is an object-oriented version of NEC-2 which has been modified to execute on a network of distributed memory processors. The matrix filling, solving and pattern computation routines are capable of running in parallel. A number of structures have been simulated using this code on the 22 processor IBM-SP2 machine at Southampton University. The principal problem studies was the DC-3 at 90 MHz. LU decomposition and an iterative matrix solution scheme were used in the study. The simulation time for this structure (which includes 3-D radiation patterns) dropped from 2.5 hours on a single processor to about 17 minutes when simulated on 12 processors using LU decomposition. Execution times are about half of these times when using the iterative solver. The far field patterns obtained from the simulation are compared with measured data and show good agreement. The largest problem tackled on the IBM machine was the DC-3 simulated at 160 MHz. This problem requires 17035 segments and was simulated in 5.3 hours on 21 processors.
Nitch, D C
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Fourie, A P C
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Reeve, J S
dd909010-7d44-44ea-83fe-a09e4d492618
Davidson, David B
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Cwik, Tom
bb1e03a1-64a1-4659-9731-ca6d250144c3
Nitch, D C
143b193e-1b28-4bc8-b46f-ef61152c6b28
Fourie, A P C
3ad0b9ce-fb36-4b48-a684-abc1d5c1a2b0
Reeve, J S
dd909010-7d44-44ea-83fe-a09e4d492618
Davidson, David B
e1b9994c-aa4b-4c89-851b-78eab36ecb08
Cwik, Tom
bb1e03a1-64a1-4659-9731-ca6d250144c3

Nitch, D C, Fourie, A P C and Reeve, J S, Davidson, David B and Cwik, Tom(eds.) (1998) Running SuperNEC on the 22 Processor IBM-Sp2 at Southampton University Applied Computational Electromagnetics Society Journal, 13, (2)

Record type: Article

Abstract

SuperNEC (SNEC) is an object-oriented version of NEC-2 which has been modified to execute on a network of distributed memory processors. The matrix filling, solving and pattern computation routines are capable of running in parallel. A number of structures have been simulated using this code on the 22 processor IBM-SP2 machine at Southampton University. The principal problem studies was the DC-3 at 90 MHz. LU decomposition and an iterative matrix solution scheme were used in the study. The simulation time for this structure (which includes 3-D radiation patterns) dropped from 2.5 hours on a single processor to about 17 minutes when simulated on 12 processors using LU decomposition. Execution times are about half of these times when using the iterative solver. The far field patterns obtained from the simulation are compared with measured data and show good agreement. The largest problem tackled on the IBM machine was the DC-3 simulated at 160 MHz. This problem requires 17035 segments and was simulated in 5.3 hours on 21 processors.

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Published date: July 1998
Additional Information: Special Issue on Computational Electromagnetics and High-Performance Computing.
Organisations: EEE

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Local EPrints ID: 250678
URI: http://eprints.soton.ac.uk/id/eprint/250678
PURE UUID: 8f168a02-6980-47ff-8937-6cc14d971361

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Date deposited: 15 Sep 1999
Last modified: 18 Jul 2017 10:40

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Contributors

Author: D C Nitch
Author: A P C Fourie
Author: J S Reeve
Editor: David B Davidson
Editor: Tom Cwik

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