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개선된 I-MESI 쓰기-무효화 스누핑 캐쉬 일관성 유지 프로토콜
장성태 수원대학교 1994 基礎科學論文集 Vol.3 No.-
In this paper, we present MI-MESI write-invalidate snooping cache coherence protocol which adresses several significant drawbacks of MESI and I-MESI write-invalidate snooping cache coherence protocols under the split transaction bus based multiprocessor environment. In this protocol, each cache block maintains six cache states(i.e., Modified-shared, Invalid-by-other, Modified, Exclusive, Shared adn Invalid). By using these cache states, our protocol reduces both the access contention and unnecessary updates for the memory mocules significantly, and thus providing the fast memory access time.
장성태,전동철,신창웅 한국해양과학기술원 2008 Ocean and Polar Research Vol.30 No.1
In order to investigate seasonal variations of the physical environments in the region of Jinhae Bay-Nakdongpo, we carried out hydrographic surveys from November 2000 to November 2001. Horizontal and vertical distribution of salinity and temperature shows large seasonal variations. Water column is well mixed in winter and stratified in summer. Low-salinity water is distributed in the form of patches because of the drainage control at the Nakdong River. Seasonal variations in the sea near Gadeok-Sudo are affected by topography, river discharge and tidal current. Currents have been measured using a bottom mounted ADCP and DCM12 between November 2000 and August 2001 in the Gadeok-Sudo. The current in the Gadeok- Sudo shows a distinct two-layer structure with reversed current. Low-pass filtered time series of wind, sea elevation and current are coherent for the period of 1-2 days and are ttributed to Ekman-like dynamics. Spatial and temporal circulation pattern shows a slight different. The subtidal current in Jinhae Bay goes northward, however is reversed in the Gadeok-Sudo mouth. In order to investigate seasonal variations of the physical environments in the region of Jinhae Bay-Nakdongpo, we carried out hydrographic surveys from November 2000 to November 2001. Horizontal and vertical distribution of salinity and temperature shows large seasonal variations. Water column is well mixed in winter and stratified in summer. Low-salinity water is distributed in the form of patches because of the drainage control at the Nakdong River. Seasonal variations in the sea near Gadeok-Sudo are affected by topography, river discharge and tidal current. Currents have been measured using a bottom mounted ADCP and DCM12 between November 2000 and August 2001 in the Gadeok-Sudo. The current in the Gadeok- Sudo shows a distinct two-layer structure with reversed current. Low-pass filtered time series of wind, sea elevation and current are coherent for the period of 1-2 days and are ttributed to Ekman-like dynamics. Spatial and temporal circulation pattern shows a slight different. The subtidal current in Jinhae Bay goes northward, however is reversed in the Gadeok-Sudo mouth.