Some artefacts (nodal forces) at interchange nodes with mpi run
Posted: 07 Jul 2020, 00:09
Hello,
I'm interested in magnetic forces induced by current carrying wires and coils. I made a 2D-test case (MgDyn2D) with two small loops and played with the parallelisation utility mpi. For some reason, there exist some artefacts in the nodal forces field. These are obviously located at the interchange nodes between the partitioned surfaces/lines (see picture). The same case run by a single process results in an unremarkable solution.
Is this a known issue produced by my immature Elmer skills or a potential parallelisation bug?
Regards,
Marcel
PS: Parallelisation commands
I'm interested in magnetic forces induced by current carrying wires and coils. I made a 2D-test case (MgDyn2D) with two small loops and played with the parallelisation utility mpi. For some reason, there exist some artefacts in the nodal forces field. These are obviously located at the interchange nodes between the partitioned surfaces/lines (see picture). The same case run by a single process results in an unremarkable solution.
Is this a known issue produced by my immature Elmer skills or a potential parallelisation bug?
Regards,
Marcel
PS: Parallelisation commands
Code: Select all
ElmerGrid 14 2 twowires.msh -2d -out ./ -partition 1 5 1 0
mpirun -np 5 ElmerSolver_mpi