Luciano Piccoli

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This paper describes a concurrent programming environment for the Intel's 486 processor family. The environment uses the processor's advanced features, like memory management, multitasking and protection, to supply the application level with a compact and secure execution environment. Regarding process management, the environment supports multitasking,(More)
As IC technology scales down, interconnect issues are becoming one of the major concerns of gigahertz System-on-Chip (SoC) design. Voltage distortion (power supply noise) and delay violations (signal and clock skews) dramatically contribute to signal integrity loss. As a consequence, performance degradation, reliability problems and ultimately, functional(More)
We report results from the first search for ν_{μ}→ν_{e} transitions by the NOvA experiment. In an exposure equivalent to 2.74×10^{20} protons on target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of 0.99±0.11(syst) events based on the Near Detector measurement. A secondary analysis(More)
This paper reports the first measurement using the NOvA detectors of ν μ disappearance in a ν μ beam. The analysis uses a 14 kton-equivalent exposure of 2.74 × 10 20 protons-on-target from the Fermilab NuMI beam. Assuming the normal neutrino mass hierarchy, we measure Δm 2 32 ¼ ð2.52 þ0.20 −0.18 Þ × 10 −3 eV 2 and sin 2 θ 23 in the range 0.38–0.65, both at(More)
Large computing clusters used for scientific processing suffer from systemic failures when operated over long continuous periods for executing workflows. Diagnosing job problems and faults leading to eventual failures in this complex environment is difficult, specifically when the success of whole workflow might be affected by a single job failure. In this(More)
It is well known that an electron beam excites Higher Order Modes (HOMs) as it passes through an accelerating cavity [1]. The properties of the excited signal depend not only on the cavity geometry, but on the charge and trajec-tory of the beam. It is, therefore, possible to use these signals as a monitor of the beam's position. Electronics were installed(More)
The CDF and D0 experiments probe the high-energy frontier and as they do so have accumulated hundreds of Terabytes of data on the way to petabytes of data over the next two years. The experiments have made a commitment to use the developing Grid based on the SAM system to handle these data. The D0 SAM has been extended for use in CDF as common patterns of(More)
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