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- W1985319504 abstract "We present a new implementation of the Fourier acceleration method for Landau gauge fixing. By means of a multigrid inversion we are able to avoid the use of the fast Fourier transform. This makes the method more flexible, and well suited for vector and parallel machines. We study the performance of this algorithm on serial and on parallel (APE100) machines for the four-dimensional SU(2) case. We find that our method is equivalent to the standard implementation of Fourier acceleration already on a serial machine, and that it parallelizes very efficiently: its computational cost shows a linear speedup with the number of processors. We have also implemented, on the parallel machines, a version of the method using conjugate gradient instead of multigrid. This leads to an algorithm that is efficient at intermediate lattice volumes." @default.
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- W1985319504 date "1998-04-01" @default.
- W1985319504 modified "2023-09-24" @default.
- W1985319504 title "Multigrid implementation of the Fourier acceleration method for Landau gauge fixing" @default.
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- W1985319504 doi "https://doi.org/10.1103/physrevd.57.r3822" @default.
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