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Solid-state drives (SSDs) have become promising storage components to serve large I/O demands in modern storage systems. Enterprise class (high-end) SSDs are faster and more resilient than client class (low-end) SSDs but they are expensive to be deployed in large scale storage systems. It is an attractive and practical alternative to exploit the high-end SSDs as a cache and low-end SSDs as main storage.
MouthPad is a tongue-computer interface, which enables the control of a computer pointer through tongue movements, in a joystick like manner. The movement of the tongue is monitored via an electrode array, placed on the palate; the contact impedance between the anterior tongue and the electrodes provides the position of the tongue relative to the electrode array. The performance of the device was...
To use the massively parallel scalar type supercomputer for the large scale numerical magnetospheric simulation, the computational performance of magneto-hydro-dynamic (MHD) code is evaluated. We have made performance tuning of a three-dimensional MHD code for space plasma simulations on the HA8000 with 1024 cores at the University of Tokyo. For parallelization of the MHD code, we use four different...
As the processor and memory performance has been dramatically increased, the I/O subsystem has appeared to be the bottleneck in modern computers. As a result, network disk array systems serve as one of the strategies to provide better performance than current disk systems have been investigated. This work demonstrates how to setup a Network Disk Array Management System to manage and control the LAN...
Storage class memories (SCMs) constitute an emerging class of non-volatile storage devices that promise to be significantly faster and more reliable than magnetic disks. We propose to add one of these devices to each group of two or three RAID level arrays and store on it additional parity data. We show that the new organization can tolerate all double disk failures, between 75 and 90 percent of all...
Disk system performance is a bottleneck of improving computer system performance. In order to minimize the disk response time for every file access request and improve the disk system I/O performance, in this paper, a new method to choose the near-optimal striping unit was described. A calculation formula of the near-optimal striping unit was designed through analyzing the relationship between the...
Recent studies show quantum-dot cellular automata (QCA) as one of the promising alternatives to CMOS technology. Optimization plays an important role in circuit design despite the used technology. One possibility is the minimization of the number of basic building blocks usually resulting in less energy consumption and fewer delays in processing. The principles of evolutionary computation have already...
Three dimensional memory systems has been argued as a potential pathway in solving the ever growing difference between comparative speeds of CPU and memory systems. In this paper, we describe a three-tier, three-dimensional SRAM macro that has been designed and fabricated in a 0.18 um FD-SOI CMOS technology. 3D stacking is found to improve wire latency as compared to planar memory structure although...
This paper is devoted to the problem of Multi-face localization on embedded DSP image processing system. The application of face localization is becoming important in machine vision, systems video monitoring and security access system. Skin color acts as an important cue for segmentation, localization and tracking of face. We capture face image on DSP image processing system and build a skin-color...
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