Warm starting the projected Gauss-Seidel algorithm for granular matter simulation
D. Wang, M. Servin, and T. Berglund.
Warm starting the projected Gauss-Seidel algorithm for granular matter simulation.
Computational Particle Mechanics 3(1):43-52 (2016).
doi:10.1007/s40571-015-0088-x
arXiv:1509.04042
[preprint pdf]
Abstract
The effect on the convergence of warm starting the projected Gauss-Seidel solver for nonsmooth discrete element simulation of granular matter are investigated. It is found that the computational performance can be increased by a factor 2 to 5.
Rotating drum simulations, coloured by particle velocity.
Videos
Downloads
Simulation videos.
- column_journal_Nit10_cold.mp4
- column_journal_Nit10_warm.mp4
- column_journal_Nit500_cold.mp4
- column_journal_Nit500_warm.mp4
- column_journal_Nit50_cold.mp4
- column_journal_Nit50_warm.mp4
- drum_slice_journal_Nit500_cold.mp4
- drum_slice_journal_Nit500_warm.mp4
- drum_slice_journal_Nit50_cold.mp4
- drum_slice_journal_Nit50_warm.mp4
- excavator_240Hz_25it_cold.mp4
- excavator_240Hz_25it_cold_resize.mp4
- excavator_240Hz_25it_warm.mp4
- excavator_240Hz_25it_warm_resize.mp4
- pile_formation_journal_Nit500_warm.mp4
- pile_formation_journal_Nit500_warm_chains.mp4
- pile_formation_journal_Nit50_WARM.mp4
- pile_formation_journal_Nit50_cold.mp4
- triaxial_journal_Nit1000_cold.mp4
- triaxial_journal_Nit1000_cold_chains.mp4
- triaxial_journal_Nit1000_warm.mp4
- triaxial_journal_Nit1000_warm_chains.mp4
- triaxial_journal_Nit100_cold.mp4
- triaxial_journal_Nit100_cold_chains.mp4
- triaxial_journal_Nit100_warm.mp4
- triaxial_journal_Nit100_warm_chains.mp4
- warmstarting_PGS_NDEM.mp4