IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2021-03-26 14:20
IPC control mechanism for highly efficient RT-DVFS
Atsushi Santo, Nobuyuki Yamasaki (Keio Univ.) CPSY2020-65 DC2020-95
Abstract (in Japanese) (See Japanese page) 
(in English) Embedded real-time systems requires power consumption while satisfying real-time performance. RT-DVFS and real-time scheduling methods are applied respectively to guarantee performance. Responsive Multithreaded Processor (RMTP) is a Simultaneous Multithreading (SMT) processor for embedded real-time systems. It implements an IPC control mechanism that controls the execution speed of threads. By using the IPC control mechanism, Fluid schedule, which is an optimal scheduling algorithm, can be achieved with a very small overhead. By combining Fluid Schedule with the IPC control mechanism and RT-DVFS, it is possible to reduce power consumption while guaranteeing real-time performance. However, IPC control mechanism cannot extract Thread Level Parallelism (TLP) insufficiently, and resource utilization becomes poor. In this study, we propose a method for effectively extracting TLP to improve resource utilization during IPC control. It enables to operate the system at a lower frequency during RT-DVFS. As a result of evaluation by simulation, it was confirmed that the proposed method improves resource utilization and enables efficient reduction of power consumption.
Keyword (in Japanese) (See Japanese page) 
(in English) / / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 435, CPSY2020-65, pp. 91-96, March 2021.
Paper # CPSY2020-65 
Date of Issue 2021-03-18 (CPSY, DC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CPSY2020-65 DC2020-95

Conference Information
Conference Date 2021-03-25 - 2021-03-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ETNET2021 
Paper Information
Registration To CPSY 
Conference Code 2021-03-CPSY-DC-SLDM-EMB-ARC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) IPC control mechanism for highly efficient RT-DVFS 
Sub Title (in English)  
1st Author's Name Atsushi Santo  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Nobuyuki Yamasaki  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Date Time 2021-03-26 14:20:00 
Presentation Time 20 
Registration for CPSY 
Paper # IEICE-CPSY2020-65,IEICE-DC2020-95 
Volume (vol) IEICE-120 
Number (no) no.435(CPSY), no.436(DC) 
Page pp.91-96 
#Pages IEICE-6 
Date of Issue IEICE-CPSY-2021-03-18,IEICE-DC-2021-03-18 

[Return to Top Page]

[Return to IEICE Web Page]

The Institute of Electronics, Information and Communication Engineers (IEICE), Japan