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Supercomputing Hummingbirds and How they Hover

"For a hummingbird with only a 10 centimeter wingspan, the unsteady aerodynamics is complex enough to require millions of mesh points to resolve the many, many small vortices stirred up by the wings — the bird essentially is flying in an 'ocean of vortices.' Therefore, efficient algorithms and high-performance computing...

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Understanding I/O Patterns at the Block Level with ioprof

Over at Admin HPC, Intel's Jeff Layton writes that understanding how data makes its way from the application to storage devices is key to understanding how I/O works and that monitoring the lowest level of the I/O stack, the block driver, is a crucial part of this overall understanding of...

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Video: Dynamical Star-Forming Gas Interaction Witnessed by ALMA

This video from the Alma telescope shows a computer simulation of multiple star formation in turbulence. Powered by Fujitsu, and built with Linux servers, the purpose-built Atacama Compact Array (ACA) Correlator supercomputer system process images from the array, which was constructed on the Chajnantor plateau at 5,000 metres altitude, near Llano de Chajnantor Observatory in...

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Radio Free HPC Looks at the Need for Better Resource Management in Linux

"With next-generation technology like non-volatile memories and PCIe SSDs, there are going to be more resources in addition to the CPU that need to be scheduled to make sure everything fits in memory and does not overflow. I think the time has come for Linux – and likely other operating...

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Nvidia Salutes Women Who CUDA

This week Nvidia salutes Women who use CUDA for incredible science and engineering. They've compiled 30 profiles so far, and the advice they share from their experiences is quite inspiring. "It’s a good way to remind people that women write code, participate in open-source projects, and invent things,” said Lorena...

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