1. Mesh partitioning command:
This command is the first step in parallel run in Elmer using ElmerGrid
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ElmerGrid 2 2 meshdirectoryname -partition 4 1 1 0
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ElmerGrid 2 2 meshdirectoryname -partition Nx Ny Nz F
And, F = 0 indicates elementwise partion whereas F=1 indicates nodewise partition.
2. Running the elmersolver mpi command
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mpirun -np 4 ElmerSolver_mpi
The concept of domain-decomposition method for mesh partitioning is shown by the following figure of Elmer Solvers Tutorial: Source/Reference: Ruokolainen, J. et al, 2016, Elmer Solver Manual, Chapter 16, Parallel Runs, CSC – IT Center for Science, Espoo, Finland. (http://www.nic.funet.fi/pub/sci/physics ... Manual.pdf)
Yours Sincerely,
Anil Kunwar