SMERFS: Stochastic Markov Evaluation of Random Fields on the Sphere
Abstract
SMERFS (Stochastic Markov Evaluation of Random Fields on the Sphere) creates large realizations of random fields on the sphere. It uses a fast algorithm based on Markov properties and fast Fourier Transforms in 1d that generates samples on an n X n grid in O(n2 log n) and efficiently derives the necessary conditional covariance matrices.
- Publication:
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Astrophysics Source Code Library
- Pub Date:
- April 2018
- Bibcode:
- 2018ascl.soft04010C
- Keywords:
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- Software