Abstract
Experiments of large data sets are computationally expensive. Signal processing analysis on a single CPU leads to unacceptably long execution times. The paper presents initial experiments on calculating the time-frequency power spectrum using the coarse-grained parallel programming technique. Experimental speedup factors are given and discussed. The measured speedup factor of the time-frequency power spectrum parallel calculation process is sublinear which indicates that the time-frequency power spectrum is a suitable application for parallel programming. The parallel efficiency is acceptable with the lowest value of 75.1% occurring at N = 10. The maximum speedup factor of 9.1 is obtained when N = 12 at 75.3% of efficiency.
| Original language | English |
|---|---|
| Title of host publication | 2001 International Conferences on Info-Tech and Info-Net |
| Subtitle of host publication | A Key to Better Life, ICII 2001 - Proceedings |
| Editors | Zhongzhi Shi, Hui Li, Y.X. Zhong |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 322-327 |
| Number of pages | 6 |
| ISBN (Electronic) | 0780370104, 9780780370104 |
| DOIs | |
| Publication status | Published - 2001 |
| Externally published | Yes |
| Event | International Conferences on Info-Tech and Info-Net, ICII 2001 - Beijing, China Duration: 29 Oct 2001 → 1 Nov 2001 |
Publication series
| Name | 2001 International Conferences on Info-Tech and Info-Net: A Key to Better Life, ICII 2001 - Proceedings |
|---|---|
| Volume | 3 |
Conference
| Conference | International Conferences on Info-Tech and Info-Net, ICII 2001 |
|---|---|
| Country/Territory | China |
| City | Beijing |
| Period | 29/10/01 → 1/11/01 |
Bibliographical note
Publisher Copyright:© 2001 IEEE.