Jean Luca Bez

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The URI Online Judge Academic is an online tool that assists professors in programming classes and motivates students to practice more and to go beyond the theoretical base learned in class and, as a result, helps them sharpen their logical, algorithmically and programming skills. The Academic module enables professors to manage disciplines and lists of(More)
The amount of data that human activities generate poses a challenge to current computer systems. Big data processing techniques are evolving to address this challenge, with analysis increasingly being performed using cloud-based systems. Emerging services, however, require additional enhancements in order to ensure their applicability to highly dynamic and(More)
As large-scale parallel platforms are deployed to comply with the increasing performance requirements of scientific applications, a new concern is getting the attention of the HPC community: the power consumption. In this paper, we aim at evaluating the viability of using low-power architectures as file systems servers in HPC environments, since processing(More)
ARM processors are beginning to gain attention from the HPC community due to its performance and energy efficiency characteristics. When developing HPC applications for such test beds developers assume that the computation resources available are homogeneous. However, we observed some anomalies when executing a relatively simple HPC application (an NBody(More)
This paper describes our research to provide high performance I/O for seismic wave propagation simulations. Earthquake early warning systems are designed to provide near real-time prediction of strong ground motion. Such systems are crucial tools for risk mitigation and disaster prevention. The ability to accurately and quickly simulate the propagation of(More)
This paper presents a study of I/O scheduling techniques applied to the I/O forwarding layer. In high-performance computing environments, applications rely on parallel file systems (PFS) to obtain good I/O performance even when handling large amounts of data. To alleviate the concurrency caused by thousands of nodes accessing a significantly smaller number(More)
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