Spatial domain-based parallelism in large-scale, participating-media, radiative transport applications
- Sandia National Labs., Albuquerque, NM (United States)
Parallelism for gray participating-media radiation heat transfer may be placed in two primary categories: spatial and angular domain-based parallelism. Angular-based decomposition is limited for large-scale applications, however, given the memory required to store the spatial grid on each processor. Therefore, the objective of this work is to examine the application of spatial domain-based parallelism to large-scale, three-dimensional, participating-media radiation transport calculations using a massively parallel supercomputer architecture. Both scaled and fixed problem size efficiencies are presented for an application of the discrete ordinate method to a three-dimensional, nonscattering radiative transport application with nonuniform absorptivity. The data presented show that the spatial domain-based decomposition paradigm results in some degradation in the parallel efficiency but provides useful speed-up for large computational grids.
- Research Organization:
- Sandia National Laboratory
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 500893
- Journal Information:
- Numerical Heat Transfer. Part B, Fundamentals, Journal Name: Numerical Heat Transfer. Part B, Fundamentals Journal Issue: 4 Vol. 31; ISSN 1040-7790; ISSN NHBFEE
- Country of Publication:
- United States
- Language:
- English
Similar Records
Application of spatial and angular domain based parallelism to a discrete ordinates formulation with unstructured spatial discretization
On the adequacy of message-passing parallel supercomputers for solving neutron transport problems