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Accelerating an Iterative Helmholtz Solver with FPGAs
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 76th EAGE Conference and Exhibition 2014, Jun 2014, Volume 2014, p.1 - 5
Abstract
Summary
We implement the Kaczmarz row-projection algorithm ( Kaczmarz (1937 )) on a CPU host + FPGA accelerator platform using techniques of dataflow programming. This algorithm is then used as the preconditioning step in CGMN, a modified version of the conjugate gradients method ( Bjorck and Elfving (1979) ) that we use to solve the time-harmonic acoustic isotropic constant density wave equation. Using one accelerator we achieve a speed-up of over 2 times compared with one Intel core.
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