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Pramod Kumbhar
PETSc is a scalable solver library developed at Argonne National Laboratory (ANL). It is widely used for solving system of equations arising from discretisation of partial differential equations (PDEs). GPU support has recently been added to PETSc to exploit the performance of GPUs. This support is quite new and currently only available in the PETSc […]
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D. L. Golovashkin, N. L. Kasanskiy
Techniques for applying graphics processing units (GPU) to the general-purpose nongraphics computations proposed in recent years by the companies ATI (AMD FireStream, 2006) and NVIDIA (CUDA: Compute Unified Device Architecture, 2007) have given an impetus to developing algorithms and software packages for solving problems of diffractive optics with the aid of the GPU. The computations […]
Thomas Sangild Sorensen, Tobias Schaeffter, Karsten Ostergaard Noe, Michael Schacht Hansen
We present a fast parallel algorithm to compute the nonequispaced fast Fourier transform on commodity graphics hardware (the GPU). We focus particularly on a novel implementation of the convolution step in the transform as it was previously its most time consuming part. We describe the performance for two common sample distributions in medical imaging (radial […]
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