• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • 1
  • Tagged with
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A Data Sorting Hardware Accelerator on FPGA

Liu, Boyan January 2020 (has links)
In recent years, with the rise of the application of big data, efficiency has become more important for data processing, and simple sorting methods require higher stability and efficiency in large-scale scenarios. This thesis explores topics related to hardware acceleration for data sorting networks of massive input resource or data stream, which leads to our three different design approaches: running the whole data processing fully on the software side (sorting and merging on PC), a combination of PC side and field- programmable gate arrays (FPGA) platform (hardware sorting with software merging), and fully hardware side (sorting and merging on FPGA). Parallel data hardware sorters have been proposed before, but they do not consider that the loading and off-loading of data often is serial in nature. In this analysis, we explore an insertion-sort solution that can sort data in the same clock cycle as is written to the sorter and compare it with standard parallel sorters.‌ The main contributions in this thesis are techniques for data sorting acceleration for large data streams, which involve fully software design, hardware/software co-design and fully hardware design solution on a reconfigurable FPGA platform. The results of this whole experiment mostly meet our predictions, and we show that Insertion-Sort implemented in hardware can improve the data processing speed for small input data sizes. / De senaste årens ökning av tillämpad big data har inneburit att effektiviteten blivit viktigare vid databehandling. Enkla sorteringsmetoder kräver högre stabilitet och effektivitet i storskaliga scenarier. Den här avhandlingen undersöker ämnen relaterade till hårdvaruacceleration av datasorteringsnätverk med massiv inmatning eller strömmande data, vilket leder till tre olika designmetoder: att köra databehandlingen helt på mjukvarusidan (sortering och sammanslagning på PC), en kombination av PC och Fält- Programmerbara Gate-Arrays (FPGA) plattform (hårdvarusortering med mjukvarusammanslagning), och enbart hårdvarulösning (sortering och sammanslagning på FPGA). Parallella hårdvarusorterare has föreslagits förr, men de tar vanligtvis inte hänsyn till att indata och utdata ofta är seriell till sin natur. I den här avhandlingen undersöker vi en insertion-sort lösning, som kan sortera indata i samma clock cykel som den läses in, och jämför den med några standard parallella sorterare.‌ De viktigaste bidragen i den här avhandlingen är tekniker för datasorteringsacceleration av stora dataströmmar, vilket involverar en implementering helt i mjukvara, en HW/SW codesign lösning och en implementering helt i hårdvara på en rekonfigurerbar FPGA plattform. Resultaten av experimenten uppfyller mestadels våra förutsägelser, och vi visar att Insertion-Sort implementerad i hårdvara kan förbättra databehandlingshastigheten för små dataserier.
2

Improved O(N) neighbor list method using domain decomposition and data sorting

Yao, Zhenhua, Wang, Jian-Sheng, Cheng, Min 01 1900 (has links)
The conventional Verlet table neighbor list algorithm is improved to reduce the number of unnecessary inter-atomic distance calculations in molecular simulations involving large amount of atoms. Both of the serial and parallelized performance of molecular dynamics simulation are evaluated using the new algorithm and compared with those using the conventional Verlet table and cell-linked list algorithm. Results show that the new algorithm significantly improved the performance of molecular dynamics simulation compared with conventional neighbor list maintaining and utilizing algorithms in serial programs as well as parallelized programs. / Singapore-MIT Alliance (SMA)

Page generated in 0.153 seconds