- changed status to resolved
PETSc Krylov solver nonzero guess logic seems buggy
Issue #848
resolved
If provided solution vector is not initialized, nonzero guess is set to false, see https://bitbucket.org/fenics-project/dolfin/src/241684bbf19fc2dd9d035d1e7c1d16a14dfeade2/dolfin/la/PETScKrylovSolver.cpp?at=master&fileviewer=file-view-default#PETScKrylovSolver.cpp-310
- Why don't we just keep PETSc's default?
- This overrides the parameter or what user set using
set_nonzero_guess
.
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Fixed by e286fbec945bd31111cac57329f424250edde97a.