Mamoru OHARA


Checkpoint Time Arrangement Rotation in Hybrid State Saving with a Limited Number of Periodical Checkpoints
Ryo SUZUKI Mamoru OHARA Masayuki ARAI Satoshi FUKUMOTO Kazuhiko IWASAKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2013/01/01
Vol. E96-D  No. 1  pp. 141-145
Type of Manuscript:  LETTER
Category: Dependable Computing
Keyword: 
distributed checkpointinghybrid state savingcheckpoint-space reclamationtime arrangement rotation
 Summary | Full Text:PDF

Lossless Compression of Double-Precision Floating-Point Data for Numerical Simulations: Highly Parallelizable Algorithms for GPU Computing
Mamoru OHARA Takashi YAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/12/01
Vol. E95-D  No. 12  pp. 2778-2786
Type of Manuscript:  Special Section PAPER (Special Section on Parallel and Distributed Computing and Networking)
Category: Parallel and Distributed Computing
Keyword: 
GPGPUmassively-parallel numerical simulationdata compressiondouble-precision floating-point data
 Summary | Full Text:PDF

Analytical Model on Hybrid State Saving with a Limited Number of Checkpoints and Bound Rollbacks
Mamoru OHARA Ryo SUZUKI Masayuki ARAI Satoshi FUKUMOTO Kazuhiko IWASAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/09/01
Vol. E89-A  No. 9  pp. 2386-2395
Type of Manuscript:  PAPER
Category: Reliability, Maintainability and Safety Analysis
Keyword: 
reliabilitydistributed systemshybrid state saving Time Warp simulationevaluation model
 Summary | Full Text:PDF

High-Assurance Video Conference System over the Internet
Masayuki ARAI Hitoshi KUROSU Mamoru OHARA Ryo SUZUKI Satoshi FUKUMOTO Kazuhiko IWASAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/10/01
Vol. E86-B  No. 10  pp. 2940-2947
Type of Manuscript:  Special Section PAPER (IEICE/IEEE Joint Special Issue on Assurance Systems and Networks)
Category: Network Systems and Applications
Keyword: 
video conference systemconvolutional codesH.323Xcastpacket loss
 Summary | Full Text:PDF

A Technique for Constructing Dependable Internet Server Cluster
Mamoru OHARA Masayuki ARAI Satoshi FUKUMOTO Kazuhiko IWASAKI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2003/10/01
Vol. E86-D  No. 10  pp. 2198-2208
Type of Manuscript:  PAPER
Category: Fault Tolerance
Keyword: 
server clusteringdistributed algorithmIP multicastDNSdependability evaluation
 Summary | Full Text:PDF

1 GHz Band High Gain Si Monolithic Limiting Amplifiers Using Parallel Feedback Technique
Noboru ISHIHARA Hiroyuki KIKUCHI Mamoru OHARA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/04/25
Vol. E70-E  No. 4  pp. 383-384
Type of Manuscript:  LETTER
Category: Integrated Circuits
Keyword: 
 Summary | Full Text:PDF