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Hadoop version 2 expands Hadoop beyond MapReduce and opens the door to MPI applications operating on large parallel data stores.
One of the key bottlenecks for HPC application performance is memory bandwidth: literally, how fast you can get data from memory to the processor and back. A convenient microbenchmark named Stream measures the memory bandwidth of nodes and reveals a general trend over the last six years that might surprise you.
Thanks to I-Nex, users can see an overview of all their important hardware inventory information, such as graphics cards, processors, and hard drives.
http://www.linuxpromagazine.com/Online/Features/Getting-System-Info-with-I-Nex
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