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| Paper: |
slmpi_emcee: MPI Parallelization of the S-Lang MCMC Hammer |
| Volume: |
538, ADASS XXXII |
| Page: |
405 |
| Authors: |
Ashkbiz Danehkar |
| DOI: |
10.26624/LJPV6003 |
| Abstract: |
Parallel computations deliver quicker and higher computational throughput as high-performance computing (HPC) resources become widely available. In this
paper, we describe slmpi_emcee, an extension of the S-Lang Markov chain Monte
Carlo (MCMC) hammer that has been parallelized using the Message Passing Interface (MPI) protocol for functioning on parallel computing architectures. The S-Lang
MCMC hammer implements the emcee ensemble sampler on the Interactive Spectral
Interpretation System (ISIS) X-ray data analysis tool. With the help of HPC resources,
the parallelized S-Lang MCMC hammer speeds up a Bayesian analysis to find the probability distributions for the best-fitting parameters of a spectral model fitted to X-ray
data on ISIS. |
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