| Co-Investigator(Kenkyū-buntansha) |
KUROYANAGI Susumu Nagoya Institute of Technology, Dept. of Computer Science, Research Associate, 工学研究科, 助手 (10283475)
MATSUO Hiroshi Nagoya Institute of Technology, Dept. of Computer Science, Professor, 工学研究科, 教授 (00219396)
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| Budget Amount *help |
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2003: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2002: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Research Abstract |
Recently, transmission speed between computers becomes more and faster and the network interface which has over 1Gbbp speed has come to be used in general. Therefore, interconnected communication overhead in PC cluster environment consisting of computers connected by an interconnected communication network has been reduced. But communication cost with initial connection stage is still high when accessing the memory of other computers like a conventional distributed shared memory on demand.
This research proposes the new distributed shared memory model that all shared memory contents are always transferred in a cluster system with high transmission speed and no initial communication delay.
We constructed run time library which is an interface to giga-ring shared memory system and giga-ring cluster which has 2, 4, 8 nodes. The specification of each nodes are as follows, CPU : Pentium III x 2 (the aim of one CPU is only transferring data), Memory : 512MB, 1.96, 3.88, 7.68 times (number of CPU' s are 2, 4, 8 respectively) speed up are achieved. Executing FDTD, 1.79, 3.06, 4.03 times (number of CPU' s are 2, 4, 8 respectively) speed up are achieved.
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