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arXiv · 2305.07636

Development of MC/DC: a performant, scalable, and portable Python-based Monte Carlo neutron transport code

Ilham Variansyah·J. P. Morgan·Jordan Northrop·Kyle E. Niemeyer·Ryan G. McClarren
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Abstract

We discuss the current development of MC/DC (Monte Carlo Dynamic Code). MC/DC is primarily designed to serve as an exploratory Python-based MC transport code. However, it seeks to offer improved performance, massive scalability, and backend portability by leveraging Python code-generation libraries and implementing an innovative abstraction strategy and compilation scheme. Here, we verify MC/DC capabilities and perform an initial performance assessment. We found that MC/DC can run hundreds of times faster than its pure Python mode and about 2.5 times slower, but with comparable parallel scaling, than the high-performance MC code Shift for simple problems. Finally, to further exercise MC/DC's time-dependent MC transport capabilities, we propose a challenge problem based on the C5G7-TD benchmark model.

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Ilham Variansyah, J. P. Morgan, Jordan Northrop, Kyle E. Niemeyer, Ryan G. McClarren. 2023-05-12. Development of MC/DC: a performant, scalable, and portable Python-based Monte Carlo neutron transport code. https://arxiv.org/abs/2305.07636

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