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Microarchitectural redundancy has been proposed as a means of improving chip lifetime reliability. It is typically used in a reactive way, allowing chips to maintain operability in the presence of failures by detecting and isolating, correcting, and/or replacing components on a first-come, first-served basis only after they become faulty. In this paper, we(More)
This paper tackles the issue of modeling chip lifetime reliability at the architecture level. We propose a new and robust structure-aware lifetime reliability model at the architecture-level, where devices only vulnerable to failure mechanisms and the effective stress condition of these devices are taken into account for the failure rate of(More)
Modern processor systems are equipped with on-chip or on-board power controllers. In this paper, we examine the challenges and pitfalls in architecting such dynamic power management control systems. A key question that we pose is: How to ensure that such managed systems are "energy-secure" and how to pursue pre-silicon modeling to ensure such security? In(More)
Routing algorithms are traditionally evaluated under Poisson-like traffic distributions. This type of traffic is smooth over large time intervals and has been shown not necessarily to be representative to that of real network loads in parallel processing and communication environments. Bursty traffic, on the other hand, has been shown to be more(More)
This paper provides: 1) a very brief motivation and technological trend data to show why hard and soft errors are expected to be of increasing concern in the future; 2) a summary review of chip-level error tolerance practices today-with a brief reference to IBM's POWER6 and POWER7 designs; 3) open research challenges and current solution approaches of(More)
Next generation system designs are challenged by multiple "walls": among them, the inter-related impediments offered by power dissipation limits and reliability are particularly difficult ones that all current chip/system design teams are grappling with. In this paper, we first describe the attendant challenges in integrated (multi-dimensional) pre-silicon(More)
The design of high-performance servers has always been a challenging art. Now, server designers are being asked to explore a much larger design space as they consider multicore heterogeneous architecture and the limits of advancing silicon technology. Bringing automation to the early stages of design can enable more rapid and accurate trade-off analysis. In(More)
PURPOSE This study aimed to evaluate the correlation, according to postnatal age, between plasma B-type natriuretic peptide (BNP) levels and echocardiographic parameters for the assessment of patent ductus arteriosus (PDA) in preterm infants with respiratory distress. METHODS We enrolled 42 preterm infants with respiratory distress who underwent serial(More)
Heated, humidified, high-flow nasal cannula (HHFNC) is frequently used as a noninvasive respiratory support for preterm infants with respiratory distress. But there are limited studies that compares HHFNC with nasal continuous positive airway pressure (nCPAP) only as the initial treatment of respiratory distress in preterm infants immediately after birth.(More)