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This paper proposes SPLiT (Scalable Performance Library Tool) as the methodology to improve performance of applications on multicore processors, through CPU, and cache optimizations. SPLiT analyzes applications based on cycle counts, and cache misses, and predicts behavior of the applications according to the analysis. With these acquired knowledge on the target application, SPLiT improves CPU resource...
This paper introduced a monitoring architecture that is highly scalable and suitable for practical use in distributed environments. We also introduced two applications as illustrative embodiments of our concept and monitoring system. For better scalability and practicality, we are planning further developments on both monitoring system itself and applications.
Security market has been expanding steadily as people become more conscious about personal information management. On the other hand, administrators are competing with the flood of logs every day, and chasing for the updates on a new kind of attacks. Given the overwhelming tasks of administrators, it is extremely hard to keep the peace without the help of professionals such as hired system administrators...
The quick spread of web services has triggered the flood of information, and requests people to choose a valid set of queries for useful information retrieval in order to extract what they really need. In actual, however, appropriate query generation is recognized as one of the advanced tasks, and an information retrieval system that allows ambiguous search is desired. This paper addresses this problem...
Increases in cache capacity are accompanied by growing wire delays due to technology scaling. Non-uniform cache architecture (NUCA) is one of proposed solutions to reducing the average access latency in such cache designs. While most of the prior NUCA work focuses on data placement, data replacement, and migration related issues, this paper studies the problem of data search (access) in NUCA. In our...
Increasing wire delays and memory capacities motivate new ways of designing 12 and 13 caches. NUCA (non-uniform cache architecture) has received considerable attention in the last few years. While most of the prior NUCA-based efforts have focused on data placement, data replacement, and migration related issues, this paper studies the problem of data search. Specifically, it proposes and experimentally...
As modern computing clusters used in scientific computing applications scale to ever-larger sizes and capabilities, their operational energy costs have become prohibitive. While it is an emerging trend in modern cluster design to optimize for low energy consumption in the individual computational nodes, little attention has been paid to reducing the energy used by the communication network that connects...
Abstract We report the case of a 10-year-old boy with neuro-Behets disease. Spinal cord MRI showed signal abnormalities in the cervical and thoracic cord, but cerebral CT and MRI revealed no abnormality.
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