Floating-point data compression at 75 Gb/s on a GPU
Proceedings of the Fourth Workshop on General Purpose Processing on Graphics Processing Units
In-situ sampling of a large-scale particle simulation for interactive visualization and analysis
EuroVis'11 Proceedings of the 13th Eurographics / IEEE - VGTC conference on Visualization
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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 faster. Our experiments show that the thread count should match or be a small multiple of the data's dimensionality to maximize the compression ratio and the chunk size should be at least equal to the system's page size to maximize the throughput.