Milagros Fernández

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In this paper, we present a novel solution to the problem of configuration management for multi-context reconfigurable systems targeting DSP applications, its goal being to minimize both, configuration latency and power consumption. We assume that this technique is applied within a larger compilation framework, which provides a scheduled task sequence of(More)
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Reconfigurable computing is a flexible way of facing with a single device a wide range of applications with a good level of performance. This area of computing involves different issues and concepts when compared with conventional computing systems. One of these concepts is context loading. The context refers to the coded configuration information to(More)
Dynamically reconfigurable architectures are emerging as a viable design alternative to implement a wide range of computationally intensive applications. At the same time, an urgent necessity has arisen for support tool development to automate the design process and achieve optimal exploitation of the architectural features of the system. Task scheduling(More)
A new technique is presented in this paper to improve theefficiency of data scheduling for multi-contextreconfigurable architectures targeting multimedia and DSPapplications. The main goal is to improve the applicationsexecution time minimizing external memory transfers.Some amount of on-chip data storage is assumed to beavailable in the reconfigurable(More)
MorphoSys is a reconfigurable SIMD architecture. In this paper, a BSP-based ray tracing is gracefully mapped onto MorphoSys. The mapping highly exploits ray-tracing parallelism. A straightforward mechanism is used to handle irregularity among parallel rays in BSP. To support this mechanism, a special data structure is established, in which no intermediate(More)
This paper presents a mapping scheme of an optimized octree-based ray tracing algorithm and its implementation on a SIMD reconfigurable architecture, MorphoSys, with appropriate hardware incorporated. A two-level SIMD mapping scheme for ray tracing is chosen to get better trade-off between coherence exploitation efficiency and bandwidth requirements. We(More)
OBJECTIVE To determine the frequency of pediatric brain tumors treated at the University Pediatric Hospital of Puerto Rico over a 6-year period and examine the demographic data and tumor histology of patients in different age groups. METHODS A retrospective study was undertaken at the University Pediatric Hospital. We included patients with brain tumors(More)