[petsc-users] Default solver type for ksp?

[Saurabh Chawdhary]

Thanks a lot guys. I also did -ksp_view and saw it was GMRES.
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KSP Object: 32 MPI processes
  type: gmres
    GMRES: restart=30, using Classical (unmodified) Gram-Schmidt 
Orthogonalization with no iterative refinement
    GMRES: happy breakdown tolerance 1e-30
  maximum iterations=500, initial guess is zero
  tolerances:  relative=1e-10, absolute=1e-10, divergence=10000
  left preconditioning
  using PRECONDITIONED norm type for convergence test
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On Wednesday, October 01, 2014 3:14:49 PM, Jed Brown wrote:
> Saurabh Chawdhary <chaw0023 at umn.edu> writes:
>
>> I understand that we can chose on of many solvers from KSPType form here
>> <http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/KSP/KSPType.html>.
>> But if do not set any option to the type which one does it chose by
>> default?
>
> GMRES
>
>> I could not find the answer in manual or web search.
>
> -ksp_view