Dear deal.ii community,
I am testing step-77 using the latest deal.ii release with sundials on
(version 5.7.0). The example compiles and runs but not as expected, as I
get the following output:
Mesh refinement step 0
Target_tolerance: 0.001
Computing residual vector... norm=0.231202
Computing Jacobian matrix
Factorizing Jacobian matrix
Solving linear system
Computing residual vector... norm=0.231202
Computing residual vector... norm=0.402211
Computing residual vector... norm=0.627191
Computing residual vector... norm=0.857696
Computing residual vector... norm=1.08878
Computing residual vector... norm=1.31995
Computing residual vector... norm=1.55112
Computing residual vector... norm=1.78231
Computing residual vector... norm=2.0135
Computing residual vector... norm=2.24469
Computing residual vector... norm=2.47588
Computing residual vector... norm=2.70708
[KINSOL ERROR] KINSol
The line search algorithm was unable to find an iterate sufficiently
distinct from the current iterate.
--------------------------------------------------------
An error occurred in line <518> of file
</home/laura/Local/dealii/source/sundials/kinsol.cc> in function
unsigned int dealii::SUNDIALS::KINSOL<VectorType>::solve(VectorType&)
[with VectorType = dealii::Vector<double>]
The violated condition was:
status >= 0
Additional information:
One of the SUNDIALS KINSOL internal functions returned a negative
error code: -5. Please consult SUNDIALS manual.
I wonder if this has something to do with my Sundials version or if anybody
has a hint of what is happenning?
Thank you in advance,
Laura
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