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Hadoop is an emerging data application for the big data processing. In Hadoop system, data compression is a significant part in processing big data effectively. Achieving this in software requires significant compute processing. In this paper we present the detailed design of a hardware compression accelerators. We also measure the performance of the hardware accelerators. Our analysis shows that...
BLAST is one of the most popular sequence analysis tools used by molecular biologists. It is designed to efficiently find similar regions between two sequences that have biological significance. However, because the size of genomic databases is growing rapidly, the computation time of BLAST, when performing a complete genomic database search, is continuously increasing. Thus, there is a clear need...
Software-based radios implemented on general-purpose processors are cheaper, easier, and faster to develop, maintain, and upgrade than hardware-based equivalents. Unfortunately, today's general-purpose processors are not fast enough to process certain waveforms. The current alternative is to use application-specific integrated circuits (ASICs) or field-programmable gate arrays (FPGAs) for all the...
A novel subblock-based scheme for bit plane encoder (BPE) of EBCOT in JPEG2000 is presented to conquer the mismatch in access pattern to code block memory. A codeblock is partitioned into 4 times 4 subblocks and encoded subblock by subblock; each subblock is encoded as the traditional scheme. The new scheme is compatible to existing accelerating technologies, such as sample-parallel, pass-parallel,...
Many complex systems require the use of floating point arithmetic that is exceedingly time consuming to perform on personal computers. However, floating point operators are also hardware resource intensive and require longer latencies than fixed point operators to complete. Due to the reduced logic density of FPGAs relative to ASICs, it is often only possible to accelerate a portion of a floating...
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