TOPS | Highlights

Recent result in high-fidelity neutron transport simulations
Dinesh Kaushik, Michael Smith, Allan Wollaber, Barry Smith, Andrew Siegel, Won Sik Yang
- Gordon-Bell finalist, SC09.
- Large eigenvalue calculation.
- Demonstrated scaling of the entire application.
- Weak scaling of the PETSc portion is over 90% for all ranges of cores.
- Weak scaling result on Blue Gene/P
- Weak scaling result on Cray XT5
- Performance optimization results
- The SC09 presentation can be obtained here
- The SC09 paper can be obtained here
Trilinos is installed into the atmospheric dynamical core package HOMME for the purposes of solving implicit formulations. Recent accomplishments include a 20% reduction in function evaluation costs due to reformulations, and integration of a flexible GMRES variant needed to support semi-implicit methods as preconditioners. This is a joint effort with scientists and mathematicians at ORNL.

Trilinos is integrated into MFIX and studies are starting to improve the robustness and performance of solutions to coal gasification problems. This is a joint effort with scientist at NETL and ORNL.