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In this paper we describe a trace analysis framework, from trace generation to visualization. It includes a unified tracing facility on IBM SP systems, a self-defining interval file format, an API for framework extensions, utilities for merging and statistics generation, and a visualization tool with preview and multiple time-space diagrams. The trace(More)
BACKGROUND Chimpanzee dental pulp stem/stromal cells (ChDPSCs) are very similar to human bone marrow derived mesenchymal stem/stromal cells (hBMSCs) as demonstrated by the expression pattern of cell surface markers and their multipotent differentiation capability. RESULTS ChDPSCs were isolated from an incisor and a canine of a forty-seven year old female(More)
An MPI profiling library is a standard mechanism for intercepting MPI calls by applications. Profiling libraries are so named because they are commonly used to gather performance data on MPI programs. Here we present a profiling library whose purpose is to detect user errors in the use of MPI's collective operations. While some errors can be detected(More)
Keywords: Environment Sustainability Green Strategy Research agenda U-space Smartphone a b s t r a c t Smartphones are both green technologies and an integral parts of green information systems that are beginning to make serious contributions toward a sustainable environment. We trace the rise of the smartphone, with particular attention given to the iPhone(More)
Modern HEC systems, such as Blue Gene/P, rely on achieving high-performance by using the parallelism of a massive number of low-frequency/low-power processing cores. This means that the local pre-and post-communication processing required by the MPI stack might not be very fast, owing to the slow processing cores. Similarly, small amounts of serialization(More)