Default Preconditioner?


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0
3 months ago by
Anyone have any idea what the default krylov preconditioner is? Its listed simply as "default preconditioner" in its description.
Community: FEniCS Project

3 Answers


5
3 months ago by
It depends on the backend. It is commonly used when a user want fine-grained control over the backend and does not want DOLFIN to interfere with the configuration of the solver.

Last time I checked, the PETSc default preconditioner was ILU in serial, and block Jacobi + ILU in parallel. 
0
3 months ago by
Thanks Garth. Very helpful.
0
3 months ago by
Thanks Garth. Very helpful.
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