2 research outputs found

    RTL implementation of one-sided jacobi algorithm for singular value decomposition

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    Multi-dimensional digital signal processing such as image processing and image reconstruction involve manipulating of matrix data. Better quality images involve large amount of data, which result in unacceptably slow computation. A parallel processing scheme is a possible solution to solve this problem. This project presented an analysis and comparison to various algorithms for widely used matrix decomposition techniques and various computer architectures. As the result, a parallel implementation of one-sided Jacobi algorithm for computing singular value decomposition (SVD) of a 2х2 matrix on field programmable gate arrays (FPGA) is developed. The proposed SVD design is based on pipelined-datapath architecture The design process is started by evaluating the algorithm using Matlab, design datapath unit and control unit, coding in SystemVerilog HDL, verification and synthesis using Quartus II and simulated on ModelSim-Altera. The original matrix size of 4x4 and 8x8 is used to with the SVD processing element (PE). The result are compared with the Matlab version of the algorithm to evaluate the PE. The computation of SVD can be speed-up of more than 2 by increasing the number of PE at the cost of increased in circuit area

    High Performance Reconfigurable Computing for Linear Algebra: Design and Performance Analysis

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    Field Programmable Gate Arrays (FPGAs) enable powerful performance acceleration for scientific computations because of their intrinsic parallelism, pipeline ability, and flexible architecture. This dissertation explores the computational power of FPGAs for an important scientific application: linear algebra. First of all, optimized linear algebra subroutines are presented based on enhancements to both algorithms and hardware architectures. Compared to microprocessors, these routines achieve significant speedup. Second, computing with mixed-precision data on FPGAs is proposed for higher performance. Experimental analysis shows that mixed-precision algorithms on FPGAs can achieve the high performance of using lower-precision data while keeping higher-precision accuracy for finding solutions of linear equations. Third, an execution time model is built for reconfigurable computers (RC), which plays an important role in performance analysis and optimal resource utilization of FPGAs. The accuracy and efficiency of parallel computing performance models often depend on mean maximum computations. Despite significant prior work, there have been no sufficient mathematical tools for this important calculation. This work presents an Effective Mean Maximum Approximation method, which is more general, accurate, and efficient than previous methods. Together, these research results help address how to make linear algebra applications perform better on high performance reconfigurable computing architectures
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