Free-Surfaces and partitioning
Posted: 11 Mar 2013, 13:03
Hi everybody !
I have a question concerning the combination of free-surfaces and parallel computing. I'm working on a 2D-setup similar to the hand-made image given as attached file. This mesh has 2 free-surfaces on 2 diferrent boundaries. When partitionning the system with the "-metis" command, ElmerGrid creates 2 partitions, and one of them does not have any contact with one of the two free-surfaces. When executing, I get the folowing error.
Of course, I could stay with a single partition for now, but I will have to enter the parallel world soon, so this problem will appear again. I believe that this problem was already encountered by some users... Is there any solution to force each partition to have a contact with each boundary ?
Thanks,
Jean
I have a question concerning the combination of free-surfaces and parallel computing. I'm working on a 2D-setup similar to the hand-made image given as attached file. This mesh has 2 free-surfaces on 2 diferrent boundaries. When partitionning the system with the "-metis" command, ElmerGrid creates 2 partitions, and one of them does not have any contact with one of the two free-surfaces. When executing, I get the folowing error.
Code: Select all
WARNING:: FreeSurfaceSolver (xf): Partition 0has no free surface
WARNING:: FreeSurfaceSolver (xf): This is not good for load balance!
FreeSurfaceSolver (xf): No limitation of solution
FreeSurfaceSolver (xf): Using horizontal ALE Formulation
Fatal error in PMPI_Barrier: Invalid communicator, error stack:
PMPI_Barrier(947): MPI_Barrier(comm=0xffffffff) failed
PMPI_Barrier(805): Invalid communicator
APPLICATION TERMINATED WITH THE EXIT STRING: Hangup (signal 1)
Thanks,
Jean