Al-Refaie, AF;
Yurchenko, SN;
Tennyson, J;
(2017)
GPU Accelerated INtensities MPI (GAIN-MPI): A new method of computing Einstein-A coefficients.
Computer Physics Communications
, 214
pp. 216-224.
10.1016/j.cpc.2017.01.013.
Preview |
Text
Tennyson_GPUfinal.pdf Download (516kB) | Preview |
Abstract
Calculating dipole transition intensities or the related Einstein A coefficients can dominate the computer usage for large line lists [of transitions such as those being computed to model radiative transport through hot atmospheres. An algorithm for the efficient computation of line strengths is presented based on the use of the half-linestrength. This is implemented on GPUs, are shown to give up to a thousandfold speed-up compared to calculations on conventional computers. This algorithm is implemented in the program GAIN which was developed as part of the TROVE nuclear motion program, but can be adapted for use by other similar programs in a straightforward fashion.
| Type: | Article |
|---|---|
| Title: | GPU Accelerated INtensities MPI (GAIN-MPI): A new method of computing Einstein-A coefficients |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.cpc.2017.01.013 |
| Publisher version: | http://doi.org/10.1016/j.cpc.2017.01.013 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | rotation-vibration spectra, transition probabilities, intensities |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1543467 |
Archive Staff Only
 |
View Item |
