I started to get this message after changing parameters in the code excerpt
below
(MM_ERR is my debugging maco that prints to stderr with file/line info ) . I
probably
have pathological data due to algorithm and coding problems but curious if
anyone has seen this flag come up or it is likely due to bug like memory
corruption
or linking incorrectly.
Why doesn't the default case handler print the unknown
reason number and line/file that generates this mystery message ? Thanks.
typedef libMesh::LinearSolver< libMesh::Number > LiSolver;
LiSolver * p=get_linear_solver();
p->solve(*matrix,0,*solution,*rhs,1e-18,5000);
//p->solve(*matrix,0,*solution,*rhs,rtol,iters);
m_reason=p->get_converged_reason();
MM_ERR(" got code solver "<<m_reason<<" "<<converged_string(m_reason))
Most likley code to be generating this message without actually stepping
through it,
https://libmesh.github.io/doxygen/classlibMesh_1_1PetscLinearSolver.html
1681 default :
1682 libMesh::err << "Unknown convergence flag!" << std::endl;
1683 return UNKNOWN_FLAG;
note new address
Mike Marchywka 306 Charles Cox Drive Canton, GA 30115
2295 Collinworth Drive Marietta GA 30062. formerly 487 Salem Woods Drive
Marietta GA 30067 404-788-1216 (C)<- leave message 989-348-4796 (P)<- emergency
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