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The computation nodes of modern supercomputers commonly consist of multiple multicore processors. To maximize the performance of such systems requires measurement, analysis, and optimization techniques that specifically target multicore environments. This paper first examines traditional unicore metrics and demonstrates how they can be misleading in a multicore system. Second, it examines and characterizes...
This paper describes and evaluates pFPC, a parallel implementation of the lossless FPC compression algorithm for 64-bit floating-point data. pFPC can trade off compression ratio for throughput. For example, on a 4-core 3 GHz Xeon system, it compresses our nine datasets by 18% at a throughput of 1.36 gigabytes per second and by 41% at a throughput of 570 megabytes per second. Decompression is even...
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