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Nowadays, the trend of developing micro-processor with tens of cores brings a promising prospect for embedded systems. Realizing a high performance and low power many-core processor is becoming a primary technical challenge. We are currently developing a many-core processor architecture for embedded systems as a part of a NEDO's project. This paper(More)
Though the size of the system is getting larger towards exa-scale computation, the amount of available memory on computing nodes is expected to remain the same or to decrease. Therefore, memory efficiency is becoming an important issue for achieving scalability. This paper pointed out the problem of memory-inefficiency in the de-facto standard parallel(More)
  • T Soga
  • 2000
A study was carried out of the resonance Raman scattering spectra of uranyl chloride (UO2Cl2) in dimethyl sulfoxide ((CH3)2SO) (DMSO) under laser excitation of the UO2(2+) ion in resonance with the 1sigma(g)+ --> 1phi(g) Laport-forbidden f-f electronic transitions span from 530 to 450 nm by using ten output lines of the argon-ion laser at room temperature.(More)
  • T Soga
  • 2001
The resonance Raman scattering spectra of dicaesium uranyl tetrachloride (Cs2UO2Cl4) in dimethyl sulfoxide ((CH3)2SO) have been measured under laser excitation of the uranyl ion in resonance with the 1sigma(g)+ --> 1phi(g) Laport-forbidden f-f electronic transitions (520-450 nm) by using 10 output lines of the argon-ion laser at room temperature. The(More)
This paper investigates a possible architecture to a dynamically adaptable processor. In this architecture, the running application is profiled and dynamic traces of high frequently executed loops (hot paths) are detected. The proposed online profiling methodology is mainly hardware-based so that overhead can be reduced as much as possible. Studying the(More)
  • Takeshi Soga
  • 2003
The resonance Raman scattering spectra of uranyl formate (UO(2)(HCOO)(2)) in dimethyl sulfoxide ((CH(3))(2)SO, DMSO) have been measured under laser excitation of the uranyl ion in resonance with the 1Sigma(g)(+)-->(1)Phi(g) Laport forbidden f-f electronic transitions (ranging from 510 to 450 nm) by using ten output lines with wavelength ranging from 528.7(More)
This paper proposes a new hardware barrier mechanism which offers the flexibility to select which cores should join the synchronization, allowing for executing multiple multi-threaded applications by dividing a many-core processor into several groups. Experimental results based on an RTL simulation show that our hardware barrier achieves a 66-fold reduction(More)
The issue of halo communication is the decrease of parallel scalability. To overcome the issues, we have introduced "Halo thread" to our simulation code. However, we have not solved the issue basically in the strong scaling. In this study, we have developed the Halo functions which perform the halo communication effectively. Then we can perform the(More)
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