| Issue |
2014
SNA + MC 2013 - Joint International Conference on Supercomputing in Nuclear Applications + Monte Carlo
|
|
|---|---|---|
| Article Number | 04107 | |
| Number of page(s) | 5 | |
| Section | 4. Advanced Parallelism and HPC Strategies: a. Deterministic Methods, Parallelism and HPC | |
| DOI | https://doi.org/10.1051/snamc/201404107 | |
| Published online | 06 June 2014 | |
A parallelization approach to the COBRA-TF thermal-hydraulic subchannel code
1 Dpto. de Sistemas Informáticos y Computación, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain
2 Inst. de Seguridad Nuclear, Radiofísica y Medioambiental, Universitat Politècnica de València, Camí de Vera s/n, 46022 Valencia, Spain
In order to reduce the response time when simulating large reactors in detail, we have developed a parallel version of the thermal-hydraulic subchannel code COBRA-TF, with standard message passing technology (MPI). The parallelization is oriented to reactor cells, so it is best suited for models consisting of many cells. The generation of the Jacobian is parallelized, in such a way that each processor is in charge of generating the data associated to a subset of cells. Also, the solution of the linear system of equations is done in parallel, using the PETSc toolkit.
Key words: sub-channel simulation / COBRA-TF / parallel computing / PETSc
© Owned by the authors, published by EDP Sciences, 2014