I/O

Princeton’s Jeroen Tromp is part of a team using Oak Ridge National Laboratory’s (ORNL’s) Titan supercomputer, to reveal the Earth’s inner workings via adjoint tomography simulations, or monitoring the interaction of a forward wavefield, in which the waves travel from the source to the receivers, and an “adjoint” wavefield in which the waves travel inversely from the receivers to the source.
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The Ken Kennedy Institute for Information Technology at Rice University hosted its annual Oil and Gas HPC Workshop in Houston, Texas.
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The Oak Ridge Leadership Computing’s Sudharshan Vazhkudai, working with colleagues at ORNL, North Carolina State University (NCSU) and Qatar Computing Research Institute (QCRI), has taken a step toward solving a key storage bottleneck.
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When the Oak Ridge Leadership Computing Facility upgraded its Jaguar supercomputer to the Cray XK7 CPU/GPU hybrid system known as Titan, the center knew that upgrades to its data analysis and visualization resources were necessary to complement Titan’s more than 20 petaflops of computing power.
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By adding a graphics processing unit (GPU) accelerator to the 16-core central processing unit (CPU) on each node, the OLCF substantially increased Titan’s computing capability, enabling INCITE researchers to reach unprecedented science achievements.

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With big science, comes big data. Large-scale simulations that drive molecular dynamics, climate, plasma physics, and other research on Titan generate enormous data sets.
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A team of researchers led by the OLCF’s Scott Klasky received an R&D 100 Award for the development of the Adaptable I/O System for Big Data, or ADIOS.
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HPCwire sat down with Galen Shipman to discuss strategies for coping with the “3 Vs”—variety, velocity, and volume—of the big data that climate science generates.
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The newest update to the Adaptable Input/Output System (ADIOS), version 1.4, allows users more time to focus on achieving scientific insight and less on managing data.
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Yuan Tian receives first place in prestigious ACM Student Research Competition for Smart I/O software
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Community development of the Lustre file system was named one of HPCwire.com’s most important trends in 2011. This came as no surprise to the computational science community at Oak Ridge National Laboratory (ORNL).
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Researchers at ORNL are working to say goodbye to input/output (I/O) problems with their most recent upgrade of the ADIOS.
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