설치류의 악성 신경교종 모델에서 BCNU와 감마나이프 방사선 수술 병합 치료

Thesis(doctors) --서울대학교 대학원 :의학과(신경외과학 전공),2009.2.Docto

전이성 뇌종양에 대한 정위방사선 수술후의 생존기간 및 국소종양조절에 미치는 예후인자

Thesis (master`s)--서울대학교 대학원 :의학과 신경외과학전공,2002.Maste

Composite Measures of Supercomputer Technology

We have developed composite measures of supercomputer technology, reflecting various factors of supercomputers using Martino's scoring model. CPUs, accelerators, memory, interconnection networks, and power consumption are chosen as factors of the model. The weight values of the factors are derived based on a survey of 129 domestic and international experts. The measured values are then standardized to integrate measurement units of the factors in the model. This model has been applied to 50 supercomputers, and rank correlation analysis was performed using representative measures. As a consequence, the ranking drastically changes except for the 1st and 2nd supercomputers on the TOP500. In addition, the characteristics of memory and interconnection networks influence the ranking, and the results demonstrate that the proposed model has low correlations with HPL and HPCG but a high correlation with Green500. This indicates that power consumption is an important factor that has a significant effect on the measures of supercomputer technology. In addition, it is determined that the differences between the HPL ranking and the proposed model ranking are influenced by power consumption, CPU theoretical peak performance, and main memory bandwidth in order of significance. In conclusion, the composite measures proposed in this study are more suitable for comprehensively describing supercomputer technology than existing performance measures. The findings of this study are expected to support decision making related to management and policy in the procurement and operation of supercomputers