Network-based parallel computing using personal computers is
currently a popular choice for concurrent scientific computing.
This work evaluates the capabilities and the performance of the
AFIT Bimodal Cluster (ABC) - a heterogeneous cluster of PCs
connected by switched fast Ethernet and using MPICH 1.1 for
interprocess communication - for parallel digital signal processing
using Space-Time Adaptive Processing (STAP) as the case study. The
MITRE RT_STAP Benchmark version 1.1 is ported and executed on the
ABC, as well as on a cluster of six Sun SPARC workstations
connected by a Myrinet network (the AFIT NOW), and on a IBM SP for
comparison. Modifications to the RT_STAP benchmark source code are
done to accommodate the BLAS routines obtained from the ASCI Red
project and the FFTPACK from the Netlib repository. Comparative
performance analysis of the original and modified versions of the
benchmarks executed on the ABC running the LINUX OS is performed,
and shows improvements in the sustained Gflop/sec rates.
Inter-platform comparative analysis demonstrates ABC's superior
computation rates, but also reveals limited machine scalability as
a result of severe communication overheads imposed by RT_STAP
cornerturn operations. Analysis of experimental data indicates that
ABC outperforms AFIT NOW but needs interconnection network
improvements to be globally competitive to MPPs such as the IBM SP.
General
| Imprint: |
Biblioscholar
|
| Country of origin: |
United States |
| Release date: |
October 2012 |
| First published: |
October 2012 |
| Authors: |
Fernando Silva
|
| Dimensions: |
246 x 189 x 10mm (L x W x T) |
| Format: |
Paperback - Trade
|
| Pages: |
190 |
| ISBN-13: |
978-1-249-59600-4 |
| Categories: |
Books >
Social sciences >
Education >
General
|
| LSN: |
1-249-59600-9 |
| Barcode: |
9781249596004 |
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