Hi,
I like to link all the dofs of all the nodes along an edge of the body
together. So I find the first dof (dof i) located on the edge and then I
try to link all the dofs on that edge (except i) to dof i. It does not work
if I have sufficiently large number of processes where that edge is chopped
by different MPI processes. I know why it does not work, but I don't know
any methods that can provide my desired dof constraints. Anyone has
attempted to solve something similar?
This is the error that I get with 8 MPI processes.
--------------------------------------------------------
An error occurred in line <1607> of file
</opt/local/dealii-9/deal.II-v9.0.1/include/deal.II/lac/constraint_matrix.h>
in function
void
dealii::ConstraintMatrix::add_entry(dealii::ConstraintMatrix::size_type,
dealii::ConstraintMatrix::size_type, double)
The violated condition was:
!local_lines.size() || local_lines.is_element(column)
Additional information:
The index set given to this constraint matrix indicates constraints
using degree of freedom 580 should not be stored by this object, but a
constraint for degree of freedom 736 uses it.
--------------------------------------------------------
Regards,
Reza
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