On 3/6/21 1:52 AM, 'Franck Kalala' via deal.II User Group wrote:
There is an error when running example 21 of dealii-9.2.0, when using Single
curving crack permeability.
this is the error message:
An error occurred in line <457> of file
</Applications/deal.II.app/Contents/Resources/Libraries/include/deal.II/lac/solver_cg.h>
in function
void dealii::SolverCG<dealii::Vector<double> >::solve(const MatrixType &,
VectorType &, const VectorType &, const PreconditionerType &) [VectorType =
dealii::Vector<double>, MatrixType = Step21::ApproximateSchurComplement,
PreconditionerType = dealii::PreconditionIdentity]
The violated condition was:
false
Additional information:
Iterative method reported convergence failure in step 1024. The residual in
the last step was 2.30266e-12.
this example run very well in previous release of dealii. is this a bug?
Possibly. Is this the exact version of step-21 that is included in 9.2, or did
you make any modifications? If so, could you attach your version?
Best
W.
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