Astrophysics Source Code Library

Making codes discoverable since 1999

ARKCoS: Radial kernel convolution on the sphere

Discussion topics for individual codes
Ada Coda
ASCL Robot
Posts: 1053
Joined: Thu May 08, 2014 5:37 am

ARKCoS: Radial kernel convolution on the sphere

Postby Ada Coda » Tue Jul 10, 2018 7:37 pm

ARKCoS: Radial kernel convolution on the sphere

Abstract: ARKCoS (Accelerated radial kernel convolution on the sphere) efficiently convolves pixelated maps on the sphere with radially symmetric kernels with compact support. It performs the convolution along isolatitude rings in Fourier space and integrates in longitudinal direction in pixel space. The computational costs scale linearly with the kernel support, making the method most beneficial for convolution with compact kernels. Typical applications include CMB beam smoothing, symmetric wavelet analyses, and point-source filtering operations. The software is written in C++/CUDA and provides two independent code paths to do the necessary computation either on conventional hardware (CPUs), or on graphics processing units (GPUs).

Credit: Elsner, F.; Wandelt, B. D.


Bibcode: 2018ascl.soft07004E

Preferred citation method:

ID: ascl:1807.004

Return to “Astrophysics Source Code Library”

Who is online

Users browsing this forum: No registered users and 4 guests