SC²S Colloquium - Feb 7, 2018
|Date:||Feb 7, 2018|
|Time:||15:00 - 15:15|
Ravil Dorozhinskii: Configuration of a linear sparse solver for a linear implicit time integration method and application of non-blocking MPI communication in parts of thermo-hydraulic computations for efficient data transfer
This is a Master's Thesis introduction talk supervised by Tobias Neckel
Sparse linear systems of equations results from application of linear implicit methods for time integration of rather stiff systems of ODEs. The optimal selection and configuration of a parallel linear solver can sufficiently accelerate the time integration process and, therefore, decrease execution time of thermo-hydraulic simulations. An intelligent application of non-blocking MPI communications in some parts of the existing thermo-hydraulic simulation code, ATHLET, can additionally solve issues of inefficient data transfer preserving the current software design and implementation without drastic changes in the source code.
Keywords: Direct Sparse Solvers, MUMPS, parallel efficiency, strong scaling, non-blocking MPI