| Co-Investigator(Kenkyū-buntansha) |
SASADA Koichi Heroku Inc., Engineer (10436561)
SADAKANE Kunihiko 東京大学, 情報理工学系研究科, 教授 (20323090)
MAKINO Junichiro 理化学研究所, 計算科学研究機構, 副プロジェクトリーダー (50229340)
IDA Shigeru 東京工業大学, 理工学研究科, 教授 (60211736)
INABA Mary 東京大学, 情報理工学系研究科, 准教授 (60282711)
笹田 耕一 東京大学, 大学院・情報理工学系研究科, 教授 (30156252)
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| Budget Amount *help |
¥216,580,000 (Direct Cost: ¥166,600,000、Indirect Cost: ¥49,980,000)
Fiscal Year 2013: ¥38,480,000 (Direct Cost: ¥29,600,000、Indirect Cost: ¥8,880,000)
Fiscal Year 2012: ¥40,560,000 (Direct Cost: ¥31,200,000、Indirect Cost: ¥9,360,000)
Fiscal Year 2011: ¥43,680,000 (Direct Cost: ¥33,600,000、Indirect Cost: ¥10,080,000)
Fiscal Year 2010: ¥43,680,000 (Direct Cost: ¥33,600,000、Indirect Cost: ¥10,080,000)
Fiscal Year 2009: ¥50,180,000 (Direct Cost: ¥38,600,000、Indirect Cost: ¥11,580,000)
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| Outline of Final Research Achievements |
In this study, we extended a computer language Ruby to increase execution performance to establish a new high-productive computer language HPC Ruby. We successfully developed HPC Ruby static compiler and runtime systems. Based on our evaluation, HPC Ruby showed from 50 % to 90% execution performance in numerical programs compared to C language. In order to show feasibility of the use of Ruby in scientific computation, we developed Ruby based software in earth science, astrophysics, and discrete optimization areas.
As for the ultra high-speed distributed computing using 100Gbps internet, we developed 40Gbps single stream TCP system and 100Gbps multi-stream TCP system. We performed very long distance internet experiments using Tokyo, New Orleans (US) and Amsterdam (Europe). Performance results shows we can efficiently utilize more than 90% of available bandwidth in both 40G and 100G environment. This was the world first realization of very long-distance high-speed TCP data-transfer.
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